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Toyota Prius repairs by problem area

Engine (31%)

Transmission and Drivetrain (2%)

Brakes and Traction Control (6%)

Suspension and Steering (12%)

Electrical and Air Conditioning (36%)

Paint, Rust, Leaks, Rattles, and Trim (7%)

Other (6%)

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Chart based on 2836 repairs.

See TSBs and recalls for the Toyota Prius.

Toyota Prius engine repair cost distribution

$2500+ (7%)

$1000 - $2499 (10%)

$500 - $999 (15%)

$100 - $499 (36%)

< $100 (32%)

See most expensive repairs

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Chart based on 716 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

52500 mi	Mileage dropped from 56mpg to 41.5 mpg. After checking, everything was OK. As I went through a couple tanks of gas the mileage came back
61000 mi US $76	No repair just regular check up.

48360 mi

$400

Ignition coil 1 was failing during light acceleration. Reported error code was misfire in cilinder 1. Once deleted it didn't show up again, even when the problem was still there physically. Dealer misdiagnosed it first as dirt in the intake and injectors, so a cleaning of the intake valve and injectors was performed first, with no results, but charged for it. After more diagnosis, they found the ignition coil for cilinder one defective, and was replaced with the next one in the combustion cycle as recommended by Toyota. Problem was solved.

201000 mi

US $2400

The dealer stated that the exhaust heat recovery system valve failed, causing a coolant leak into the catalytic converter. Requires exhaust system replacement for the affected valve. 3rd party, an Independent shop, mentioned that the part is a common fail point for gen 4. The only symptom was a chronic low coolant, slow leak. Over time this will damage the cat if the problem is ignored by topping off the fluids.

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8000 mi	Engine check lightr oln due to a gas cap not fully seated
16500 mi US $90	Engine light came on again. Suspected leaky gas cap. No repair - just reset the computer

87000 mi

US $998

Was told hybrid battery bad, would cost an additional 1675 (above 998 for brakes) told them to wait on battery, no $ for that now.

34000 mi

US $996

Marble-sized rock punctured inverter cooling radiator causing loss of inverter coolant. Leak slow enough that I was able to drive to the dealer. Replaced inverter pump & inverter radiator. Approximately 4 hours labor involved.

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16700 mi	Complete hybrid failure caused by some error code. Dealer cleared the code and the car drives perfect again.
19000 mi	Ever since the hybrid failure, MPG has topped out to 37-39 MPG. Dealer tested everything out and can't find anything wrong. This car gets NOWHERE NEAR the 48-51 EPA MPG. If I wanted 39 MPG, I would have bought a Ford Focus.

18000 mi

US $908

My car started having a hard vibration as I drove to work. Acceleration made it worse. Drove the short distance to work, and then had it towed to a local Toyota dealership. No codes came up, other than a hard misfire in cylinder 2. They proceeded to take the engine apart looking for a mechanical problem, but found none. Called in some experts from Toyota who had them "try things". Eventually they found it was an air pocket in a fuel train(??). This was not covered under warranty. The car was 2 months beyond the 3 year warranty. I had just purchased it in May. Eventually called Toyota who extended a good will reimbursement to me. No one could explain how or why this happened. I have since noticed some vibration when driving at high speed. I am concerned that I have purchased a lemon.

136000 mi

US $800

Cooling, replaced inverter water pump.

14200 mi

Check engine light came on - the code said it was a loose gas cap - they checked for leaks and reset the code, no charge

64000 mi

US $200

rodents had chewed on the wires of the O2 sensor. straightforward replacement.

32000 mi

US $225

Oil leak

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6000 mi

Making loud rattle noise/shake under hood on initial startup. Would go away after warmup. Toyota recommended having it towed to shop and sent tow truck. Dealer had car for 2 days. Has made same noise 1 time since. Replaced intake manifold.

183000 mi

US $3500

Head gasket

29000 mi

Software update for the MG ECU & Power Management ECU.

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41000 mi

Water pump failure

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41200 mi

US $875

Power management control unit, 12 volt battery

54800 mi

US $600

Water pump failed for radiator

9000 mi

Plug In Hybrid making unusual knocking noise when under the moderate load to the engine. Dealers could not find the problem and deemed as normal operation. I had Regular Prius Hybrid (Not Plug In), and never had this issue before.

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32000 mi

Timing cover oil leak. Seals were replaced.

86000 mi

Inverter components overheated and burned (a known issue covered under Toyota's extended warranty up to 15 years of coverage with no miles limit)

155000 mi

US $524

Engine developed a miss needed new coil, spark plugs, Induction system cleaning

35800 mi US $52	Trouble Code P0138 O2 Oxygen Sensor Circuit High Voltage (Bank1, Sensor2). Dealer found sensor wire "chewed". We paid for diagnosis only and I replaced the O2 sensor with aftermarket part (Denso which also manufactures the OEM sensor).
104000 mi	Intelligent Power Module and Inverter replaced along with brake repairs, both known issues and covered under recalls.

50000 mi

DC-DC converter warranty repair

103000 mi

US $160

Noticed a metallic clicking noise somewhere in the mid section of the engine bay ... turns out the heatshild of the first catalytic converter broke off. Toyota Dealership found the issue but they do not "repair" but replace the whole exhaust section for $2700. So I declined that and it was temporary fix with mechanical wires. and they said not critical. Later the heatshield was removed hopefully not causing more trouble.

249000 mi

US $212

Replaced Spark Plugs

90000 mi

US $40

Replaced PCV valve

74200 mi

US $50

Oil leak from timing cover gasket.

37000 mi

US $58

Check engine light came on because of fuel tank vacuum leak. Techs tightened fuel cap and cleared alarm.

126000 mi

Hybrid inverter failed (yellow not red triangle), covered by Toyota warranty extension

98000 mi

US $15

The Car is Burning Excessive Oil. About 3.5 quarts in 10000 miles. Apparently a common issue on a Toyota Prius (2010-2015). Interesting thing is it's not burning enough oil to do the "repair". According to the Toyota TSB on the issue the car needs to burn more then 1 quart in 1000 miles. The repair is to replace the pistons and rings which is not trivial, and rather expensive. I will do an oil analysis and see if I have excessive metal. And if not switch oil to a 0w-30 or 0w-40.

95000 mi

Hybrid engine was not working. They changed the static inverter.

110500 mi

US $3766

Hybrid battery pack. 8yr, 125k Extended warranty does not cover hybrid components. Hybrid components only covered up to 8yr, 100k

38180 mi	Replace EGR Fume smell when accelerating.
49160 mi	Engine tapping noise. Performed fuel ignition decarbonize 4 times. Replace HV battery. OBD2 error code: P0A80
110980 mi	Engine oil leaking and suspect of piston ring issues. Manifold, throttle body serviced. Recommended by dealer to replace with semi-sync oil and monitor the leakage.

140000 mi

US $1600

oil pan leak found. apparently common at lower mileage on prius. they replaced the computer also because it had drips on it, but didn't charge me for that.

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118086 mi

US $2

Cleaned carbon clogging of intake manifold. No symptoms yet, but a known issue with this generation. Best to periodically clean it before a problem can develop. Some people on Priuschat.com and elsewhere feel confident that clogging of the cooler and/or manifold passages is the primary cause of the depressingly frequent head-gasket failures in high-mileage 3rd-generation Prii.

5000 mi

Rough start after cold soak per TSB

84000 mi

US $60

Heat shield had come loose and was rattling quite a bit. Mechanic removed it because it isn't strictly needed.

94500 mi

US $50

regular maintenance

63500 mi

leaking oil seal

91000 mi US $300	Lean code on CEL. Replaced O2 sensors. Light came back on; Will investigate at annual inspection.
95000 mi US $1540	Persistent lean fuel trims and P0171 code. Diagnosed as bad fuel injectors. Replaced all 4 fuel injectors with genuine Toyota, cleaned intake, back of valves, injector ports, EGR tube, replaced intake manifold gasket.

66000 mi

US $3500

Stone came through opening in front and damaged inverter cooling radiator. Coolant was lost and inverter failed and was ruined. Cost was covered by road hazard insurance Note: Prius has no grill work in front opening to catch stones

219000 mi US $160	Replaced mass airflow sensor - rough idle, reduced fuel economy, CEL
228000 mi US $3800	Leaking head gasket

150000 mi

Error code P0A94 DC-DC Converter sub-assembly. Looks like the part is around $2500. Covered by Toyota 15 year unlimited mileage warranty.

121000 mi

US $925

Replaced Fuel Pump

106000 mi

The car went into limp mode. Had it towed. Discovered it was the inverter which was covered under extended warranty!

94000 mi US $100	Oil leak. Engine had to be pulled to correct problem.
116000 mi	Replaced EGR Valve and gaskets
121600 mi US $60	Check engine light was intermittent. Dealer said problem with EGR valve again - they needed to keep car for day or so to work on it so I had to reschedule.
131000 mi US $985	Replaced EGR Cooler.

8000 mi	extremely retarded valve timing. replaced camshaft oil control valve
65000 mi	Timing chain cover seals leaking. Repaired under extended warranty. Replaced related seals and gaskets.

20000 mi

Cold start (below 40F) runs rough with a loud knock. Occurred about 8 times during the winter. Found a TSB that described my problem exactly. Dealer did not find any error codes. Not sure if repair fixed the problem.

21040 mi	Accelerate and smell went into cabin-Not fixed.
36860 mi	Smell coming from engine bay. Fixed by replacing sponge at engine bay.
40300 mi	Timing chain knocking to engine body during cold start
41540 mi	Engine metal knocking during cold start. Replaced fuel injector and manifold. Problem still occured. Root cause was carbon deposit on fuel injector causing the morning cold start knocking. Needed special coated fuel injector.

4000 mi

Oil warning light directing me to take the car to the dealer where I bought it.

82000 mi

US $500

seal was leaking head gasket

158000 mi

US $224

engine check light revealed replace mass air flow sensor

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34720 mi

oxygen and fuel / air sensor replaced

290000 mi US $1700	Blown head gasket
350000 mi US $205	Engine overheat at high power only. Replaced Electric engine water pump.

66000 mi

Complete system failure, every light lit up on dash, no regen braking. Dealer said they are replacing most of the braking system including master cylinder, etc. Have Toyota extended warranty, told it would cost over $4500 otherwise.

93700 mi US $350	Prius is burning oil. 1qt per 500 miles
98000 mi	Burning oil.

117000 mi

US $203

Replace oil pan gasket

17000 mi

When engine started, it sounded like rocks were in it. Problem has been reported by other 2010 Prius owners (see youtube videos).

69000 mi

Intelligent Power Module failure.

116000 mi

Misfire, replaced spark plugs.

138000 mi

US $2600

Major oil leak.

210000 mi

US $200

Oil pump sensor was bleeding oil. They wanted 500-2000 at the local toyota dealer (corwin) got it done for $200. When I got it there was a problem with the rings the dealer said it wasn't covered that would cost 5000 they said. I've been using Lucas oil extender and having been burning as much oil

87000 mi	Cylinder 3 misfire. Dealer cleared code and it did not come back on. Engine, battery and system checked out OK.
109000 mi US $72	Engine light flashed, car fails to start on occasion. Dealership found no code stored and no issue. 12V Battery tested ok.

146000 mi

US $100

Check engine light came on. Engine idled very rough, especially when cold.

24000 mi

Check engine light came on. Dealer installed software update.

179000 mi US $500	Engine set P003 code after rough start on cokd soak. Intake manifold and EGR gasket replaced per TSB. Asked for help on price due to TSB, declined due to miles on car.
259000 mi US $150	Timing chain tensioner oil seal failure. Replaced seal.
305000 mi US $99	Hybrid battery failure. Elected to not repair the car. Sold it and bought new.

29600 mi

The oil trap door fell off. Toyota initially refused to pay for it, but I argued that it's not the fault of the owner (the oil is maintained by the dealer). They ultimately replaced the Oil Trap Door that would've cost $350.

39000 mi

Replace inverter

80000 mi

US $70

Car sounds like a truck when starting up. Brought it to the dealer in Downey. Dealer refused to follow Toyota Service Bulletin explaining the problem. Told me it expired at end of April. So did NOTHING.

126060 mi

C $130

P2A00 check engine code. Defective front oxygen sensor 89467-28090. Replaced it. Problem solved.

230300 mi US $160	Oil leaking from timing chain tensioner. Replaced timing chain tensioner and re-sealed (had to leave car overnight at the dealer to allow time for the sealant to cure. Free loaner car.
267000 mi US $594	EGR valve and heat exchanger were plugged with oil deposits. Dealer replaced EGR valve and attempted cleaning the EGR heat exchanger with solvent, but eventually had to replace it.

57040 mi

Hybrid battery needed changing - was changed for free under extended guarentee

218 mi US $50	Knocking on startup, misfire, replaced Spark plugs none a [another attempt to repair knocking on startup]
220000 mi US $100	Knocking on starkup, misfires, rough running. Replaced Coils Packs and cleaned ERG cooler, EGR, and related piping.

109000 mi

US $150

Oil was very low. Needed to get it towed and topped up. Confirmed that there is a leak, possibly in the engine block. They recommended replacing the gasket, but it would cost thousands.

128000 mi

US $2286

Replaced inverter

100000 mi US $50	Oil leak detected. Oil was leaking through the timing chain cover. Repaired under extended warranty.
107452 mi US $200	Water pump failed. Part replaced with Aisin water pump.
175000 mi US $150	EGR replaced.

48360 mi C $180	Intake manifold replacement (vehicle failed to start in cold weather)
53060 mi	Hybrid system (check hybrid system error came on). Dealer could not localize problem. Possibilities included the battery fan and high humidity in the battery compartment. No repairs made and problem has not recurred.
65720 mi C $600	Diagnose Check engine light. O2 sensor indicated, and replacement recommended. Check engine light has not recurred, so have not replaced sensor. Replace O2 sensor

201000 mi

US $925

Remove, clean and reinstall EGR valve, EGR Cooler, EGR Pipe, intake manifold, all new gaskets. Cooler and pipe were totally clogged, cleaned to good as new. Also changed spark plugs and PCV valve while car was torn open

96000 mi

Hybrid/engine/brake warning light, limp mode, hybrid system not operational. Covered under tsb0036-16. Lots of inverter parts replaced, seems it's related to IPM intelligent power module.

147000 mi

US $850

Fuel problem. EGR valve clogged. No reason this car should have an EGR valve.

145700 mi	Oil consumption of 1.5qt every 5,000 miles. Toyota states it's not a problem until consumption is 1 qt every 1500 miles. With oil change intervals of 10,000 miles I see this as an issue. Toyota will not repair under extended warranty.
228000 mi	Hybrid System power inverter failure. Toyota replaced the inverter under the 15 year / unlimited miles warranty extension for inverter. Very happy with Toyota for covering this repair on a car with over 228,000 miles. I plan to drive it for another 200k.

58000 mi	The air regulator flap mnalfunctioned
90000 mi	The invertor for the hybrid electric motor failed. Third time for this vehicle.

170000 mi US $2400	Transistor Kit Power Module for Hybrid system overheated and was replaced. Check Engine light turn on. The hybrid system no longer ran due to this issue.
181000 mi US $1500	Hybrid system Manifold assembly replaced EGR valve caused too much air to enter engine

139000 mi

US $1500

Excessive oil use starting at 135000 miles. $1500-$2000 quote to repair. Currently 1qt every 1200 miles. Decided not to repair.

44000 mi

US $400

Hybrid drive problem. Battery (on warranty) and inverter replaced

81000 mi

Fuel mixture sensor (O2 sensor)

101000 mi

Transistors for power inverter burned out

101000 mi US $50	Broken spring inside the oil filter canister, I think.
168000 mi	Reprogrammed the hybrid system

134000 mi US $65	Oil Change
143000 mi	NiMH Hybrid battery stopped working, entire pack was replaced under warranty by Toyota. 150k mi warranty in California, less in other states.

160000 mi

US $760

EGR Valve replacement. Part $365.Labor $471.

72400 mi

REPLACED TIMING CHAIN TENSIONER O-RING, WHICH WAS BEGINNING TO SEEP OIL BELOW HEAD GASKET

3600 mi	Piece of bottom shield came loose, was hanging down to the ground, attached at the front and hanging down behind - front right side, ~12 inches long, 4-5 inches wide. They resecured it with clips.
79500 mi US $168	Part of the splash shield broke due to a clip falling off at some point. They had to replace the front right fender (wheel well) lining. $120 parts and $40 labor.

165 mi

US $800

EGR, intake cleaning. Oil catch can, transmission service. Preventative maintenance. The 2010 Prius has head gasket issues usually caused by clogged EGR system.

132000 mi	This was a recall to remedy a sticking EGR valve. My car didn't fail the test, but the shop was kind enough to do the upgrade anyway since I had heard the sound once or twice in the past.
146000 mi US $54	The oil pressure sending unit was leaking oil. It was enough oil that I was fortunate enough to see oil drops on my driveway when I got home. The issue must have started that day as there was very little oil missing (as noted by the oil level on the dipstick.) The part was purchased immediately and installed after by me. Luckily it was pretty straightforward and I had the tools and time.

81000 mi

US $8

Oil level was low. No detectable leak. Repaired PCV valve and will need to bring car back in a month for them to look. Update: oil still a little low, but will just monitor for now.

60760 mi

Traction battery capacity was reduced significantly

142000 mi US $300	Oil Filter Cover broken. Apparently tightened too much during previous oil change.
202000 mi	Engine skipping. Unknown problem. No issue found by rapair shop. Went away before picking up from shop.
240000 mi US $270	Car has started rough intermittently with no warning lights for about a year. Engine light came on, code for Cylinder 4 ignition coil. Replaced.
242000 mi	After previous attempted repair, engine continued starting rough. Engine light came on. Took back to shop and codes showed for Cylinder 3 and 2 ignition coils. Cylinder 3 coil replaced. Was sent home over the weekend. Engine light and rough start returned. Returned to shop where it was determined cylinder 2 has a leak allowing coolant to settle in cylinder when vehicle is off. Exact location not determined. Due to age of vehicle, engine replacement recommended. Decided not to complete repair due to cost.

158000 mi

US $1658

Tune up and intake manifold change

82000 mi	Replaced VVTI Gear for $2800 (Extended Warranty covered 100%). But noticed large amount of carbon deposits. My mileage has dropped to 32mpg from my previous average of 55-58.
126000 mi US $200	Hybrid battery died. $11k to repair. I was out of warranty but Toyota stepped up and paid all but 2900 of it as a courtesy gesture after I bitched to corp for a few days.

80816 mi

US $279

Dealer read code for "failing water pump" and quoted $890 for the repair, which I declined. I ordered the OEM water pump from RockAuto.com - $252 plus overnight shipping. Repair required removal of air intake (6 bolts), draining coolant, and five bolts for the water pump. Two hours total, going slowly and carefully, with no previous experience with this engine. I guess I chose the wrong career - I didn't know my time was so valuable! (saved $300+ per hour)

41800 mi US $98	Exhaust rattling. 3 Welded piped brackets near catalytic converts cracked and fell off making it rattle. Told to have it fixed somewhere else as dealer can only replace entire exhaust system for $2300.
91000 mi US $30	Catalytic Converter bracket weld came loose making a exhaust rattle. Secured with a coat hanger

65720 mi

C $1750

Started losing oil last August. Checked over, compression test to confirm. Put in new block. Freak thing and not normal at all. Probably should have changed oil more often than every 10000 km.

56000 mi	Motor mount replaced under T-SB-0204-11 to fix vibration. The new motor mount seems to have made things worse instead of better.
83000 mi	The new motor mount actually made the vibration a little worse, but never tried to get it fixed because the new mount was the fix.

32300 mi

Water pump Emissions valve

52700 mi	Hybrid system hesitation during extreme heat after parked for several hours (hot battery pack). Possible protection mode, but wanted to be sure. Dealer attempted reproduction, then told it was normal, and discouraged "battery mode use".
70000 mi	Hybrid system sluggish, not using battery power when battery hot. Battery gets hot easily.
82000 mi	Hybrid performance poor when battery is above 45°C. Battery easily heats to or above this temp during normal use. Car sluggish in this state and has poor fuel economy.
82000 mi	Poor fuel economy when hybrid battery hot. Battery easily gets heated and takes a while to cool, partially due to heat soak, partially due to not cabin. 20% drop in FE.

127000 mi

US $300

Charcoal canister error, replaced, error came back.

67875 mi

US $329

Fuel injection service

75000 mi

US $20

Poor mileage, so replaced PCV valve. Valve is located under intake manifold, so replacement requires working above and below engine

159000 mi

US $1500

replaced head gasket

90000 mi

intake manifold changed under warranty

50000 mi

US $300

Water Pump Failure

120000 mi

US $30

Heat shields under the car were loose resulting in rattle. Dealer quoted $500 for parts and labor. Tire store said only needed tightening and did the job for $30

161180 mi A $316	Code P0335 Drive shaft sensor
239940 mi A $217	Car was staggering on take off. Dealer removed and cleaned injectors.

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5000 mi	My car failed its emission inspection. I took it to the dealer and was told I needed to drive it on at least 3 trips of at least 75 miles each to "reset" the computer.
10000 mi	I haven't actually taken it to be repaired yet; my impression is that the car jumps forward at times when I hit the brakes. It happens intermittently, not constantly.
US $3000	The car just wouldn't start. I had it towed to the dealer and they said it needed a new inverter, for $3,000+. I was appalled, but it was cheaper than buying a new car.

109120 mi

$450

Check Engine lit up and car stalled on Motorway. Towed to garage. After verification, electrician found out that sensors needed cleaning. No parts change required.

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68000 mi

US $633

Check engine light code P1121. Replaced Inverter coolant control valve. This is separate cooling system that cools the electronics associated with the high voltage battery system. Parts cost: valve, $89.32, replace supper long life coolant, $24.68. Labor cost: $462.00, environmental fee $17.00. Plus tax $40.03. Total $633.03, which seems high to me. I was told replacing a fail inverter is a $3,000 for the part.

90000 mi

US $700

Water pump failed (not the hybrid electric one). Caused all kinds of mischief with the electrical system, had to be towed to the shop.

134000 mi

US $153

exhaust gasket broke and needed replacement.

25500 mi

Replaced the electric hybrid water pump.

42000 mi

US $400

Tank - reset bladder tank

65500 mi

Exhaust mounting bracket weld had broken. Local private Tyre and Exhaust company was able to improvise repair with metal clamp which worked perfectly. fixed free-of-charge.

60000 mi

US $16

Service engine light went on. A scan indicated that the number 4 cylinder was misfiring. Ordered a used ignition coil from eBay and that fixed the problem. Note that a new ignition coil goes for over $100 plus mechanic's labor cost.

36900 mi	inverter pump
40000 mi US $512	coolant flow control valve

100200 mi

US $382

replace inverter coolant pump

81200 mi

US $149

Replace timing cover gasket due to engine oil leak. Replace valve cover gasket due to engine oil leak. OCV Sensor broken. Replaced.

67000 mi US $450	Water Pump was showing a small leak. Replaced.
79194 mi US $1500	CEL (Check Engine Light): Engine 3-way coolant valve - $613 Dealer reported Serpentine Belt heavily cracked - Replaced at owner expense
99500 mi US $700	Red Triangle appeared - code P0A93 - inverter coolant pump issue. Dealer checked system claimed no problem. Decided to replace pump anyway.

75000 mi

US $775

Read codes and level 2 diagnosis. Replace coolant control valve. Replace coolant and bleed air from system

119700 mi

US $75

p1121 code from ck egg. lite. Replaced flow control valve

94300 mi

C $250

I had the check engine light go on, and when the dealership checked into it it was a stuck coolant fluid control valve. I basically paid $250-$300 for them to reset the code as they were replacing and flushing my coolant anyway.

115940 mi

Car stalled less than 5 min after picking up from oil change and windshield replacement. Shop foreman scanned vehicle and found P3190 and P0A0F current and P1121 and P1116 in history. Inspected all hoses and connections related to oil change and windshield repair. No fault found. Removed air cleaner housing to inspect throttle body and plate. Found excessively "coked". Cleaned throttle body and MAF sensor. Started engine to clear throttle body cleaner, then cleared codes. Shop suspects when air filter was inspected a small particle was dropped into the housing and drawn into the MAF sensor once engine load (venturi vacuum) increased, blocking the MAF sensor signal.

87000 mi

US $88

Coolant valve stuck shut, engine overheated causing service light to come on

134800 mi US $100	Evidence of crankcase pressure - had PCV valve replaced as precaution.
253000 mi US $80	Replaced mass air flow sensor in response to OBD code.

98000 mi

US $1200

Diagnose check engine light: Water pump "failing" by report, and coolant temperature sensor inoperative. Vehicle held overnight, awaiting delivery of coolant temp sensor to Dealer. Water pump and coolant temperature sensor replaced on second day. Vehicle returned to us. The next day, check engine light is back. Car back to Dealer. Diagnose check engine light. Coolant flow control valve, and wiring for coolant temperature sensor replaced. Vehicle returned later the same day.

48000 mi

US $800

coolant control valve

119000 mi US $800	Found radiator leak. Replaced radiator
164200 mi US $800	Check engine light came on and triggered code P1121: Coolant Flow Control Valve stuck. Dealer replaced the valve. It cost $150 for the diagnostic and $600 to replace the valve.

89086 mi

US $400

water pump replaced and drive belts replaced

180000 mi

Hybrid Cooling Pump recall hadn't been done; it left us stranded. Towed via AAA to nearest dealer and repaired at not cost.

28000 mi

The recirculating valve for the A/C unit (coolant side) opened slowly causing a check engine light.

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168000 mi

US $400

Coolant Control Valve

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187000 mi US $478	Running exceedingly rough. Had to replace spark plugs & other electronic parts. Wanted to replace brakes, but decided not to at this time.
350000 mi US $4500	Engine was using oil, about a quart every two weeks, and had to be replaced with a used engine.

332320 mi

A $450

Engine had been seized by previous owner due to overheating. No belt, no coolant in radiator and oil was approx. 50 percent coolant when drained. Engine replaced with used engine from salvage yard with no issues.

59000 mi

US $458

Water pump needed replacing

70800 mi

US $600

Coolant Control Valve replacement 16670-21010

113800 mi

US $600

Replaced catalyst and resonator, P0420 code. Previous catalyst was counterfeit.

90000 mi US $750	Carbon buildup on engine intake has to be cleaned.
99000 mi US $2400	Failed catalytic converter had to be replaced.

92000 mi

US $950

Evap system. One part of the gas line replaced

159000 mi

US $1100

The inverter coolant pump failed. Replaced at New Jersey dealership the same day.

78800 mi

US $600

Hybrid system water pump

65000 mi

US $600

Battery was found to be inadequate when I took the car in due to a "check engine" light that turned out to be caused by a defective gas cap.

135000 mi US $550	3-way coolant valve failed, and was replaced.
132000 mi US $724	Water pump and thermostat had to be replaced.

177000 mi

US $590

Inverter water pump overheated and blew a fuse. Car's electrical system gave out, had to be towed.

71000 mi

US $600

Diverter valve in coolant system was not closing. Check engine light on. Fixed with valve replacement.

60000 mi US $700	Water pump leak at the housing. Replaced pump, gaskets and coolant Replaced accessory drive belt that was worn and frayed.
83200 mi US $645	Replaced 3 way coolant valve.
86000 mi US $500	Replaced hybrid water pump and topped off coolant.

64000 mi

US $375

During routine inspection / maintenance, tech noted that coolant was low and found small / slow leak... seepage where pump joins with a "pipe" of some sort. Water pump and all "directly related" parts (related to the leak) were replaced.

121520 mi

C $145

Exhaust hangers and gaskets

91000 mi

US $150

Exhaust heat shield rusted and needed to be replaced

54300 mi

US $166

Odd symptoms intermittent, happened only twice with my wife driving - engine revs up when removing foot for accelerator at 55 mph to slow down for stop light. Service Advisor recommended Injector Flush & Induction Service 79.95 each. Not fixed.

94000 mi

US $185

Leak in fuel pump

84000 mi US $60	Resonator pipe broke from catalytic converter
88000 mi US $600	Leaky water pump and worn timing belt replaced. Car happened to be in the shop for a replacement accessory battery.
94000 mi US $2400	Replaced a leaky water pump

102000 mi

US $145

The dealer technician noticed cracking in the drive belt. They replaced the drive belt with no problems. No problems since.

113000 mi

US $100

Lag in response, cleaned dirty throttle body.

145000 mi

US $100

Replace Coolant Flow Control Valve due to P1121 error code.

83000 mi

US $120

Thermostat on coolant pump that pumps hot coolant to a thermos tank next to the engine failed and had to be replaced.

113700 mi US $120	Replace drive belt.
156000 mi US $165	Muffler heat shield replaced
158000 mi US $400	Replace water pump

118000 mi

US $185

Serpentine belt

175000 mi

US $200

muffler and tailpipe

96000 mi

US $340

Water pump was leaking, had a new after market water pump installed.

226920 mi

C $80

Changed coilpack on 4th cylinder

202000 mi US $960	hybrid system cooling valve
208000 mi US $384	valve cover gasket, pcv value, spark plugs, ignition coil .., since was having valve cover gasket replaced,, went ahead and had the other stuff done
210000 mi US $500	hybrid battery problem. code P0A80. Mechanic removed hybrid battery and found one cell was below the required voltage. should be 7.5 or higher and one had 6.23. Bad cell was replaced and copper contacts were also replaced with new ones. battery was reinstalled and problem was resolved.

115700 mi

US $5

Cleaned throttle body and air filter. Added dry gas to fuel tank

24000 mi

US $300

Replaced leaking water pump.

US $30

running a little rough at idle

100000 mi

US $250

Water pump replaced as it was beginning to leak. Cost of about 250

89000 mi

US $281

The traction battery failed and was replaced with a new battery.

80000 mi

US $294

Leaking main engine water pump

104000 mi

US $300

Leaking water pump replaced

103000 mi

US $400

Replaced engine coolant pump

52500 mi

US $100

Serpentine belt was cracked and replaced

44000 mi

Engine water pump and hybrid water pump and battery

53000 mi US $500	Water pump also identified as needing replacement on this trip.
55000 mi	P1121 code - known frequent problem with Priuses of this vintage; eventually got manufacturer to pay for full replacement of coolant flow control valve!

50000 mi

Notice a slight misfire when coming to a stop. WAs not reproducible at shop and no codes stored in current flow but cylinder misfire was in history. Throttle cleaned.

83000 mi US $58	Kept getting red emergency triangle light in dashboard and " problem " across screen of brain unit before brain unit stopped working. After brain unit was replaced warning idiot light conditions still lit up intermittent. Found low oil.
94300 mi	Have had an intermittent check engine light for the past year. Dealer could never find anything. I eventually found it was very low on oil. Seems to be burning it. Not happy that dealer didn't discover the problem one of the times I took it in.
102700 mi US $472	Check Engine light. First visit #2 cylinder problem. Change plugs, clean injectors. Mechanic also recommended cracked serpentine belt and possible water pump leakage. I okayed replace serpentine belt.
103000 mi US $487	30 days and 500 miles after repair on 4/01/2016 the same condition again on 5/07/16. Check engine light. Dealer found bad injector cylinder # 2 again. Replaced faulty injector. Now problem is corrected .

77000 mi	Catalytic Converter Failed at 77,400 mi. Normal Car warranty expired however dealer replaced at no cost with a new one using the federal emissions warranty which covers this repair for vehicles under 80,000 mi
80000 mi	Water Pump leaking - replaced water pump

62000 mi

noticed the battery was not reaching full charge ... diagnostic was OK .. it was the heat .. we have a heat waze ( over 40) so the battery efficiency is reduced and will not charge as fully. Noticed improvments with cooler weather now.

83000 mi	Oil change, engine and cabin air filters replaced, radiator cap replaced due to signs of leakage
111000 mi US $150	Coolant control valve was bad; throwing P1116 and P1121 codes and check engine light; replaced valve and replaced engine coolant; also did oil & filter change; rotate and balance, new wipers

24260 mi C $216	I had a thermostat changed as I suspected it was sticking (via ScanGauge II water temp readings). Dealer software could not i.d. any trouble and was not recommending a change. I insisted and the new thermostat has cleared up the symptoms
43400 mi	Leaking water pump replaced under extended warranty

154000 mi	Replaced inverter cooling pump under recall
271000 mi US $1500	Drive battery failed
279000 mi	Main Drive Battery replaced under warranty

45000 mi

water pump leaking coolant, replaced water pump and belt...

40000 mi

Replaced water pump.

51500 mi

Can't completely fill up the gas tank. They told me the gas tank has a bladder in it and probably because of it being so cold it won't fill up all the way. I should wait and see if it gets better when it warms up outside.

192000 mi US $250	Car was losing 2 quarts oil between regular maintenance (5,000 miles) PCV valve was replaced. Have not yet taken car back to dealer for oil consumption test. Update: problem persists.
250000 mi	Check engine light came on. Service dept. put it on the computer and 2 codes came up, 1. was the catalytic converter and 2: was a problem possibly with the gas cap. No definitive fix was given but an $1800.00 price was given for the repa.
260300 mi US $943	Replace catalytic converter.
277000 mi US $500	Replace hybrid cooling system

212000 mi

Mass airflow sensor replaced

68700 mi	Transmission drain and fill Replc Pcv valve
121300 mi	emission check engine p0456
123000 mi	replace fuel tank failed emmision test

45000 mi

replaced water pump

63000 mi

Cooling system

8680 mi

Engine check light came on. Took vehicle to local dealer who determined via the code that there was a misfire problem. Cleared Engine Check light. Suggested we had picked up water in gas. Added 150ml TSP water eliminator. No further problem.

76000 mi	Engine Air Flow Sensor Failed - Check Engine - Computer kept shutting down engine - Had to tow to not wear down hybrid battery
167000 mi US $350	Coolant flow sensor for inverter - replaced sensor and valve
210000 mi US $250	Inverter coolant pump failed and was replaced
274000 mi US $770	Hybrid Coolant Pump Failure

28520 mi

Leak in water pump discovered during routine maintenance. Replacement covered by warranty.

151140 mi

PCV Valve replaced to try to improve oil consumption. Didn't help.

32000 mi

Cruise control was activated at 65mph on a rainy day on the highway and a car cut me off. I braked to override the cruise control. Instead of disengaging, the car sped up. I piled on top of the brake and changed lanes. Called Toyota and they blew me off.

118973 mi	Hybrid battery showing signs of wear. Owner used Prolong Deluxe hybrid battery conditioning system to charge/deep discharge the cells to restore balance and battery performance.
143981 mi US $110	Replaced inverter coolant pump
159183 mi US $2500	Replaced weakening hybrid battery pack with OEM one. No codes were thrown prior to replacement.

53000 mi

3 Way coolant valve needed to be replaced. Was under warranty.

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45000 mi

The water pump that operates after the car is turned off to pump coolant into an insulated tank had a bad bearing. Common failure, apparently. About 4 hours of labor, but under warranty.

116000 mi

Oil pan replaced by dealer who sold the car to me at their cost as part of car sale.

121000 mi

US $2500

The check engine light showed a code for the catalytic converter. The exhaust also had a hole in it, so my mechanic said the cost of repairs was more than the car was worth.

161900 mi

US $90

Traction pack failure. I just replaced two individual cells in the pack, did the work myself, overall cost to fix was $90 and about 5 hours of time.

102000 mi

US $2000

The hybrid battery went out. We bought another one from Napa and installed it ourselves.

129000 mi

£700

Rear box perforated and replaced

101000 mi

US $3100

Clean throttle from previous overfilling of oil. This was 4th time and they did it for free this time as they acknowledged they had not gotten it all the last two times. Hybrid battery was leaking and past warranty. The warning lights,etc were the same as when the "throttle needing cleaning." Could they not have told me this before it was out of warranty?

119000 mi

US $100

After 10 years, the serpentine belt was showing wear. It was replaced in just over an hour while I waited.

82100 mi US $265	Replaced worn serpentine belt.
85000 mi US $400	Replaced leaking water pump

149900 mi US $1700	Replaced hybrid traction battery
230000 mi US $100	Replaced failing relays which were causing codes.

184000 mi

US $85

3-way coolant flow valve.

119000 mi

US $1500

Water pump replaced

26000 mi

Coolant pump sounding noisy. Replaced pump under warranty.

185000 mi

US $300

Clean mass air flow sensor and throttle body. These issues were causing check engine light.

83300 mi

US $450

Coolant control valve stuck

132000 mi US $200	Power Inverter Cooling pump....pump that circulates coolant to the Pruis Hybrid Battery to keep it cool. Known problem/weakness. Had previously rec'd a new one in 2012 under Toyota Warranty/recall", however they appear to fail, in my case, every 6 years, 60K miles or so.
135000 mi US $70	added spacers to downstream O2 sensor to prevent recurring CEL warnings about sensors/cat.

146000 mi

US $3050

Problem with hybrid battery. I was told 3 out of 20 cells degraded, and the battery needs replacement. I am disappointed with 1 year Toyota warranty for hybrid battery. 12V auxillary battery has 7 years limited warranty at the same time.

93700 mi

Replaced gas engine water pump and coolant control valve. Cell in hybrid battery failed at 93000 miles. Dealer replaced the hybrid battery assembly under warranty.

32000 mi

Battery died out due to low voltage problem, (multiple codes in system). Dealer called Southeast Toyota (SET) who advised Dealer to replace Inverter Assembly. After replacement, problem was solved.

83260 mi

Leaking engine water pump replaced under extended warranty while performing 135000 km service.

99500 mi

Codes p1121and p1116 set check engine light, and failed smog test. ONLY because I had a documented smog test failure, this was covered under the prius 15 year, 150,000 mile warranty. It was a sticking coolant control valve.

221800 mi US $700	Inverter failed. This is the water pump for the hybrid battery cooling system.
233000 mi US $1000	Car was two hours from home. Started running very very rough. Had it towed to nearest Toyota. Stated that the one of the injectors was bad and that the other three were not running within specs. Cost was just over $1000.00.

58000 mi

HV Battery (High Voltage) replaced due to one block with one volt low. Toyota process required multiple trips to the dealer over a few weeks while driving with the check engine light on to confirm and repair the battery pack failure.

133000 mi

US $570

Failed relay from high voltage battery

163000 mi

US $579

The water pump for the inverter failed, so the dealer replaced the water pump. I was getting a VSC check engine light error.

109000 mi US $197	Replaced water pump drive belt
111941 mi US $581	Transmission drain & refill, replace water pump & refill coolant

17000 mi

Electric motor in Hybrid system seems weak. Less resistance than when new, lower gas mileage than when new.

128000 mi

£500

Inverter coolant pump. Threw a code, car was still driveable, but was driven immediately to shop, shop diagnosed and replaced.

99000 mi

US $150

Replaced cracking drive belt. Pretty good I think to have gotten 100k on original one!

156700 mi

US $150

Unusual engine oil consumption in the past several months. Engine sludge was suspect and engine was flushed with special detergent. The oil consumption drastically reduced after this engine flush.

104000 mi

Hybrid water pump replaced under TSB. Check Engine light on, and high engine temperature was noted. Engine could have overheated withput proper repair. Air bubble at h20 pump caused lack of coolent circulation.

42000 mi	Possible small leak in water pump discovered during oil change. Warranty fully covered repair.
105000 mi	Hybrid battery control computer and battery cell.

173000 mi

US $150

Hole in pipe connected to muffler. Replaced muffler/pipe assembly.

109900 mi

US $2316

Replaced Hybrid battery. Car only 10 years old, 110,000 miles. Ridiculous!

30380 mi

Defective sensor. Leaking water pump. Install sensor. Install water pump.

70000 mi

US $620

The pump for the inverter needed replacing.

42100 mi US $500	Coolant control valve Drive belt replacement recommended by dealer
75000 mi US $120	Hybrid battery needed to be replaced
129000 mi US $850	Car shut down completely, blew a fuse. Water pump replaced.

75000 mi

US $120

Water pump on IC engine was leaking and needed to be replaced.

182000 mi

US $1549

Hybrid battery failure - replaced with with reman battery

154000 mi

US $220

Replace water pump

142200 mi

US $500

Said I needed water pump although I have never lost any coolant.

181000 mi

US $500

Had to replace the "inverter cooling pump" (?). Was explained this part controls cooling for both the regular and hybrid engines. Check engine light came on then dealer attached a computer to find the code.

280000 mi

US $6500

Last November (around the 280,000 mile mark) I had problems with the hybrid battery pack. I was told it was "bad" and needed to be replaced. Without doing any research, I had the work done at the dealership. After the fact, I learned that bad cells in the hybrid battery pack can be replaced and it doesn't have to be that expensive. Was also told the catalytic converter wasn't in good condition. Replaced.

68000 mi

US $200

Engine light came on, faulty catalytic converter repaired and covered under original emissions warranty.

96000 mi

water pump cracked, needed replaced

71000 mi

Clunking noise from front. Service manager found a service bulletin about the issue. He ordered motor mount. I went back in a bout a week and they installed the motor mount, 3 hours.

54300 mi

US $500

found internal combustion engine pump was leaking, replaced both pumps.

101000 mi US $900	replace manual water pump, evaluate transmission problem (none found). Drain and refill invertor coolant. Replace cabin air filter.
111000 mi US $3450	Replaced hybrid battery
112000 mi US $450	Involved coolant control valve which had to be replaced

101000 mi US $291	Mass airflow sensor showed error code, part replaced.
113000 mi US $750	Hybrid system water pump and valve were seen to need replacement during a routine service. Parts were replaced.

139820 mi

A $991

Replaced hybrid battery with a reconditioned one.

41000 mi	Northridge Toyota claims coolant pump is making a funny noise after vehicle shutdown. Independent research confirms this is normal for the Prius. Decided to get a second opinion at a different dealer with next service. I don't trust Northridge Toyota.
46000 mi	Had coolant pump that Northridge Toyota said was a problem checked out at North Hollywood Toyota. They could not identify any issues - as I had expected.
75000 mi	Was told hybrid system water pump was leaking. They replaced it but it started making sloshing noises immediately upon driving out of the dealership so took it back and they bled the system (again supposedly) which fixed .

41000 mi

US $37

Noisy electric cooling pump replaced under warranty. TSB exists and was ordered done.

254200 mi US $5000	Bent valve rod. Dealer recommends replacing vehicle. A new engine is recommended. Repairs not economically feasible.
255000 mi US $4335	Original engine died at 254500. Replaced engine with used engine (52000 miles). Replaced entire exhaust system at the same time.
289000 mi US $450	Water pump leaking and heater hose leaking. Replaced both.
302000 mi	Engine light on. Water temp sensor bad.

66700 mi US $40	Cylinder 2 was misfiring occasionally at idle. I determined the problem was fueling rather than ignition and replaced injector.
145000 mi US $2800	Traction battery replaced.

3000 mi	Got a reset from warning light,also noticed oil smell with heater/defroster. Sent home with
4000 mi	Wildly gyrating MPG read-out after filling with gasoline. Gradually went back to normal. Dealer didn't know what happened, treated my like a dunce.'Its perfectly normal" he said. I had never seen it before.

61000 mi

US $956

Dash light indicating need to take car in for service. Service indicated the cooling pump needed replacement and water pump had leak and should be repaired. Had both repaired.

151000 mi

US $45

The hybrid battery went out. I confirmed it with a code scanner. I removed the battery, tested each cell and replaced the one that was bad. Car runs great now

56000 mi	hybrid battery replaced under warranty
72700 mi US $962	Power inverter coolant pump valve

115000 mi

hybrid battery was replaced under warrenty

96200 mi

US $400

The water pump was replaced.

101000 mi US $400	water pump leak
144000 mi US $3000	Replaced drive battery with NEW not rebuilt

175000 mi

US $1400

Large nicad battery needed replacement greenbean sells refurbished batteries with lifetime transferable warranty for around $1400 so not really sure of the labor rate it was a flat rate and they take your old battery as well.

137300 mi

The Hybrid battery was bad.

126000 mi

US $4000

Had to have Prius hybrid battery replaced

205000 mi

US $1

DTCs p1116 & p1121. Replaced coolant flow valve & mech. water pump.

165000 mi

US $1300

serpentine belt, pulley replaced

145000 mi US $5	Hole in exhaust, at a spot difficult to get to. Attempted to seal, repair failed after one week. Now living with a noisy Prius.
145700 mi	Car refuses to run more than ~10 seconds. Multiple error codes suggesting issue with throttle control. Have attempted to take apart throttle control, difficult and complex to diagnose. Car is currently broken awaiting more of my free time

37000 mi US $28	Heat shields on exhaust system became loose causing a very annoying clanking noise when motor was running. New bolts were used to tighten heat shields. No more noise.
48000 mi	check engine light on. mechanic stated it was related to the emissions control system. Mechanic suggested I do not try to repair problem as repair work would probably cause rusted parts to break off causing more repair work. No charge.
49000 mi US $100	timing belt replaced.

109000 mi US $345	Hybrid water pump needed to be replaced.
127000 mi US $373	MPG falling. Diagnostic. performed. Trans. fluid changed, spark plugs and air filter replaced.

196300 mi

US $400

Radiator replacement with new coolant. Radiator developed pin-holes and was leaking Water pump replaced - leaking from shaft

128000 mi

Replaced hybrid battery due to premature failure.

5000 mi	Car died. Towed to dealer. They said originally battery defective under warranty plus bad fusible link. Later said inverter bad therefore nothing covered under warranty. Want $5500 plus tax to repair. Asked why no warranty. Answer nothing defective.
5000 mi US $3400	Car died. Battery determined defective. Also found a fuse and inverter bad. Only battery and tow covered under warranty. Owner paid the rest.

197000 mi

US $40

I bought this car from a friend for $1500 sight unseen. They towed it to my place and after hooking up my OBD II adapter I confirmed the car had a P0A80, whic is a shorted out battery module in my experience (2 times), but it could be other things too. I pulled the pack, replaced the weak module, buttoned everything up, washed/vacuumed the car, and started to drive it.

201000 mi

US $40

I had another module start to go, but this time it was with the "block XX becomes weak" CEL. I believe I had noticed this block was, in terms of voltage, high when charging and low when discharging, so I suspected one of the modules was on it's way out, but it still lasted a half year or so. As of December 2017, I believe another module i(or two) s starting to go as well. This manifests itself as the pack appearing completely full more often than in the past, especially after a decent hill, and also periodically dropping down to 1-2 bars after it's completely "full". This happens because the module or modules with the flaky cells will increase or decrease voltage faster than the other cells (they have relatively little capacity to store energy left), which makes the pack voltage appear higher or lower than it actually is and the battery displays as full or near-empty more often.

137000 mi

US $55

Hybrid battery failure. Trouble code P0A80 This is the one all Prius owners fear. However, I ordered a couple battery modules from Ebay and did the repair myself. That was 24 days ago and it is still running smooth.

56000 mi US $250	Water pump leaking; replaced
67000 mi	Water pump leaking - replaced on extended warranty

116847 mi US $492	Replaced leaking water pump (W/coolant) and drive belt. Replaced leaking water pump (W/coolant) and drive belt.
128300 mi	Hybrid Traction Battery replaced. Received P0A80 error on Tuesday, Aug. 13, 2013. Drove to Poway Toyota. Battery replaced under warranty (150k mi)

61960 mi

A $300

Engine water pump failed, got replaced with genuine part, repaired by a certified independent mechanic.

262700 mi	P0420 code, perhaps because it is burning 500-700 ml per 1000 miles
277000 mi US $182	Replaced catalytic converter to clear p0420 code. Fuel economy and power are back and engine light is gone!

217000 mi

US $55

3 way coolant control valve replaced.

187000 mi

£50

replaced heat shield round fuel tank, as mounting had rusted.

87000 mi

Main drive battery went out, but still had 12,000 miles of warranty left so it was free of charge. Wait time was due to the main drive battery was on back order.

142000 mi

US $300

Investigate oil leak.

140000 mi

US $400

P1121 coolant control valve remove and replace

162000 mi

US $300

Engine Water pump, also coolant recovery tank pump

152000 mi US $3200	The Hybrid Electric Battery Failed. They replaced the battery and cleaned the cooling fan.
163000 mi US $2679	Dramatic loss of power and drain on Hybrid battery. Check engine light on. Catalytic Converter Failed and needed replaced. Due to California emissions laws only new dealer part may be installed and that equalled a very high cost.
215000 mi US $300	Fuel economy had been dropping off noticeably. Then the check engine light illuminated indicating that the fuel was too lean. I cleaned the Mass Air flow sensor, replaced the spark plugs, and cleaned the throttle body. The problem persisted so I replaced the original fuel injectors. They were in terrible shape. After the repair the car's mpg increased by approximately 6 mpg. The problem has been fixed.

30000 mi

US $300

needed new water pump

63000 mi

US $60

Working on the brakes to sand glaze off of the pads and rotors (showed almost no use after 60K miles), I spun the wheels off ground. The computer went nuts and gave all the brake warning lights. Dealer was kind and reset the computer for $60.

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130000 mi

Needed catyltic convertor, new tires and was losing oil

62000 mi

US $400

Computer died this time battery car would not shut off transmission kept shifting in neutral while driving all dash lights came on car would not start or shift water pump leaking replaced battery had no brakes!

46000 mi

CEL came on, Toyota replaced a sensor under extended warranty (some sensor related to the cooling system).

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30000 mi US $115	I went in for 30k maintenance and also for squeaky coolant pump under TSB 0087-08, and also a squeaky rear window. They could not replicate either of my problems, and nothing was fixed. I was very disappointed and angry with them for not fixing anything
35000 mi	squealing noise coming from coolant pump. replaced under TSB 0087-08

56000 mi	Prius stopped running, but limped to dealership. Main battery and several other items replaced. Cost not disclosed.
58000 mi	To diagnose low gas mileage; reported to be result of higher ethanol levels & not a problem with car; skeptical.
137000 mi US $200	belt replacement required

79000 mi	Hybrid traction battery failure
119000 mi US $114	Inverter coolant pump faulty per Toyota TSB/recall. Throwing up error messages on the dashboard and about to fail completely. Parts replaced under warranty.

134500 mi US $350	Water pump leaking coolant, discovered while replacing serpentine belt. Pump replaced.
167200 mi US $3900	Traction battery failing. Red triangle and check engine illuminated, could not accelerate to high speeds. Hybrid battery replaced.

215200 mi

US $2300

Was burning oil; about 1 qt/350 miles. Replaced engine.

10000 mi

vehicle lost power on hwy 680 nothing was done by toyota to fix this

199000 mi

US $1750

After nearly 200k, our hybrid battery finally went out.

60000 mi	Noisy thermos water pump.
119100 mi US $200	Replace muffler - can rusted through, no longer attached to pipe towards resonator.
150000 mi US $60	Slow coolant weeping from internal combustion engine water pump, replaced with OEM (Aisin) part from Amazon plus a gallon of Valvoline Asian Car 50/50 coolant.

35000 mi

US $450

CEL on w/ many codes-most caused by aftermarket installation. Xtra time taken for repair to isolate & repair real problem-dirty sensor.

158000 mi

US $250

R/R inverter coolant pump (PA093).

51000 mi	Hybrid inverter pump broke.
131000 mi US $500	While driving, large, red triangle of death and CEL appeared. Since there are no actual gauges on the car, the red triangle of death was all I had to go by. Called around for repair, only one repair shop (not dealer) answered their phone, and got our business. When we arrived, technician pulled the code, which confirmed the inverter coolant problem. Although busy, took our car and repaired it by the next day. Will be taking it to them next time, if there are any issues in the future.
160000 mi	Cats stolen. State Farm Insurance covered repair. Tow company did not deliver vehicle for two weeks. P0420 after repair.

85000 mi US $470	Water pump was just starting to leak
120000 mi US $500	Water pump replacement

112500 mi

US $500

Coolant sensor triggered "check engine" light; replaced

99500 mi

Hybrid battery defective. Battery was on back order and took over 6 weeks to arrive at dealership

85000 mi

US $330

Needed new H20 pump.

89600 mi

US $250

water pump seal was leaking and was replaced

109000 mi

US $1800

Replaced traction battery at 106,000 miles, in March. Used rebuilt battery. I had a surging when first started for the first 5-10 minutes when parked in the direct sun, in very hot weather for 4 years. Trouble code 3-14. New battery eliminated problem.

91216 mi US $319	Water Pump was leaking identified on previous periodic maintenance check. REplaced pump and belt
106398 mi US $454	Replaced the engine coolant control valve sensor and coolant.

153000 mi

US $1900

Hybrid Battery

193000 mi US $120	Hybrid cooling valve replace
196000 mi US $300	Replace waterpump

25000 mi

US $887

Clean Throttle Plate Replace Water Pump Replace Belts

41000 mi

Slow (at the time of repair) coolant leak at the water pump. Water pump replaced under warranty and the leak was fixed.

107000 mi

US $1500

Rechargeable hybrid battery

112000 mi US $3600	Replaced Hybrid Battery
114000 mi US $71	Muffler was noisy. Replaced section of exhaust pipe on muffler.

108500 mi

US $978

Two cells of the HV battery were not working and all dash lights came on quite unexpectedly. Diagnosis by dealer confirmed HV battery needed to be replaced. Dealer replaced the HV battery and two cables. Toyota covered 70%; I paid 30%.

36000 mi	Coolant transfer pump made high pitched whine on start-up and shut-down, especially in cold weather. Pump replaced under warranty.
121000 mi US $315	Weeping engine coolant pump replaced.
135000 mi US $850	Replaced HV battery due to reduced battery capacity resulting in poor climbing performance.

5000 mi

US $50

Tire press. light came on while driving, stopped and put air in and tried to reset but the light did not go off. More user error- I didn't hold the set button down long enough and they put in a little more air.

186000 mi

US $2800

Broken rod in engine, presumably due to wear. Entire engine was replaced with used engine (68K) as it was much more expensive to rebuild.

108160 mi R 90	I took my car to Toyota and they pulled a P3110 "IGCT Relay Malfunction" and a B2799 "Immobilizer Malfunction" code. They reset, checked and cleared everything and the error hadn't occurred since. Cost me $90.
123380 mi R 100	Leaking engine water pump (not the inverter).Replaced along with new V belt
163360 mi R 2500	Main traction battery failed

150000 mi

US $1500

main Hybrid battery pack needed to be replaced

214000 mi

US $70

Car occasionally would throw P0011 code especially after a fresh oil change. Narrowed it down to the oil control valve being faulty. Replaced it and car continues to give trouble free miles.

89000 mi

US $900

Cracked radiator, leaking water. Water pump, etc repaired/replaced.

50300 mi

US $50

water pump seepage fix and recall work related to acceleration fix (shortening the pedal)

43000 mi	Inverter pump was starting to make a lot of noise at shut down. While my car was being serviced for the recall, I mentioned the problem to the dealership, and there was a tsb out on the problem. They replaced the pump quickly and well.
76000 mi US $340	Coolant Water Pump was replaced as it was weaping coolant.

101000 mi

US $940

Three way valve in coolant system was stuck. Also, water pump had minor leak. Both were replaced

75000 mi

US $3300

Hybrid battery needed replacement. Dealer tried charging me 4400 even though two other dealers had lower quote. Dealer did not lower price until I actually sent a tow to tow it somewhere else! This is even after I talked to manager!

68000 mi

US $50

Replace leaking water pump

165000 mi	Still a problem. Weird pattern of warning lights including at times the CEL Car still runs just fine but there is a question as to what systems are working correctly. Will report more as this story unfolds.
180000 mi US $40	Car suddenly started to misfire. Check engine light flashed at first then became steady. No problems previously at all. Turned out to be worn spark plugs. I have never known plugs to fail suddenly.

260000 mi

US $60

Replaced downstream O2 sensor.

85300 mi

Main hybrid battery pack failed.

186620 mi C $100	Changed coupling between muffler and exhaust system (donut)
229400 mi C $50	Patched exhaust pipe from muffler to tailpipe due to corrosion.

69000 mi

Water pump leakage identified during oil change and lube

109700 mi	The main hybrid battery failed. Replaced under 150k warranty.
178700 mi US $717	New muffler

142000 mi US $100	Replaced idler pulley.
198300 mi US $1000	Hybrid battery failed.

45000 mi US $135	While in for Oil, Filter, and wheel alignment the technician discovered that the water pump was leaking which also affected several belts. The water pump and belts were replaced under warranty.
59000 mi	water pump was leaking causing a loss of coolant. Car was flatbed towed to dealer for repair.

120000 mi

US $650

Engine water pump was leaking. Had it replaced.

185000 mi US $3665	Replaced high voltage hybrid battery.
195000 mi US $125	Replaced spark plugs at 65,000 miles. One was found to be defective.
243500 mi US $868	While traveling, got error code PO301 (Cylinder 1 misfire). However, there was no evident misfire, loss of power reduced gas mileage. 100,000-mile plugs had 50,000 miles on them. I should have simply replaced one ignition coil. for $68. Since the car had 243,000 miles on it, I went to dealer. They replaced all coils and plugs and cleaned the intake for $868. Car runs exactly the same, which has always been just fine. Color me dumb.

157000 mi

US $124

There was a pinhole leak in the exhaust pipe that's attached to the muffler. The muffler was replaced.

127700 mi

US $140

Serpentine belt replacement. Made noise, dealer said it was fraying.

124000 mi

Hybrid battery failed and was replaced under warranty

87000 mi

Recall to replace hybrid inverter coolant pump.

52000 mi	Inverter coolant pump replaced under powertrain TSB warranty
137000 mi US $400	Hybrid battery failure. Rebuild a spare and replaced.

203000 mi

US $2500

Hybrid Battery died

145000 mi US $4200	Hybrid battery failure
162000 mi US $710	Water pump, $480
247000 mi US $145	Coolant switching valve replaced

86098 mi

US $375

Hybrid inverter. Already replaced once before in recall, so this is the second time. Inverter Coolant Pump

39300 mi

Mechanic found that the water pump was leaking and replaced it on warrantee.

156000 mi US $1497	Water pump was leaking
172000 mi US $1945	Hybrid battery pac needed to be replaced
190000 mi US $150	Hybrid battery replacement from February 2015. Failed and was replaced under warranty

90000 mi US $450	Leaking water pump was replaced by dealer. Requested new serpentine belt since old one had 88,250 on it and there would be no additional labor charge.
206547 mi US $118	Replaced rear muffler/resonator. My original muffler developed a leak.

224000 mi US $129	Replaced 3 cells in the traction battery and completed a discharge/ charge "refresh" on all cells and tracked initial voltage, internal resistance and final voltage
227000 mi US $30	Balanced traction battery modal voltages, removed corrosion on copper and nickel plated module connectors and nickel plated them all.

131300 mi US $691	Check Engine Light came on when Hybrid cooling pump failed. I got a 20% discount on repair as reward for using dealer for maintenance and repair.
153327 mi US $3468	Replace hybrid battery on Prius.

36000 mi

Inverter pump failed.

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41000 mi

Noisy coolant recirculating pump. Installed parts.

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41000 mi	Second oxygen sensor replaced under our extended warranty (aka prepaid service agreement)
49000 mi	Heard unusual sound; read TSB's consulted dealer, who then replaced the water pump.

116000 mi

US $2100

Hybrid Battery Failed

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168000 mi US $580	Engine water pump had a slight leak, so it was replaced along with the thermostat (preventative).
180000 mi	Hybrid water pump was replaced

98000 mi

Engine water pump weeping coolant- was replaced.

97000 mi US $1000	Water pump replaced
101000 mi US $2650	The main battery replaced

61000 mi

US $1000

Replaced Engine Seal. HV Water Pump Recall. Replaced Leaking Water Pump and cracked Belt.

114000 mi US $2900	Dealer said car was due for drive belt replacement, likely original, over 110,000 miles at that point.
115000 mi US $1005	The hybrid traction battery failed. Initial estimate to repair was $5300. I called Toyota and a different dealer who was honest about the battery core charge, etc.. Toyota kicked in about $1950 towards the repair.

50000 mi

US $400

Valve in hybrid cooling system triggered P1121 CEL. Replaced by dealer at same time hybrid cooling pump recall service done for additional charge.

124100 mi US $395	thermostat for hybrid cooling system replaced
136000 mi US $3200	Inverter for the power brakes had to be replaced.

60000 mi

water pump leak, caught by mechanic during routine service for oil change, etc. Water pump replaced under warranty (2 weeks before end of 5 year warranty).

180000 mi

US $650

Internals of front catalytic converter had broken loose and were rattling around in the housing. Replaced the whole center pipe and both converters rather than welding.

37000 mi	Electric coolant pump replaced at Toyota's option due apparently to pre-empt premature failure.
45000 mi	Dealership introduced H2O into the ignition coil areas of 2 spark plugs during routine service. Severe misfiring occurred on engine warm-up. Dealer clean up and dried affected area at no charge (imagine that). Problem fixed.

63000 mi

US $498

Grinding type noise noted when gas engine engaged.

158000 mi US $3000	Mass airflow sensor needed to be cleaned or replaced
160000 mi US $500	Exhaust needed replacement

245000 mi US $2300	CEL P0A80: Hybrid Battery Failure. Battery level would quickly charge to full and quickly fall, causing the engine to run constantly. Reduced power.
245500 mi	Code P0A80: Hybrid Battery Failure. Battery failed again two weeks after the first replacement. Replaced under warranty. Same symptoms.

100000 mi	Oxygen sensor in exhaust required replacement. The error message recurred twenty minutes after leaving the garage. When re-examined the garage thinks it is due to using a non-standard catalytic converter. Too expensive for minor benefit.
102700 mi	Leaking water pump required replacement
108000 mi £50	VSC and Regenerative Braking warning lights on. Hybrid battery low charge only abnormality found by workshop. Recharging hybrid battery cured warning lights.

22000 mi

Traded car with broken transmission coolant pump drive. Dealer performed repair after trade.

64000 mi	The engine coolant valve needed replacement and was replaced under warranty.
100000 mi US $400	Some kind of water pump was leaking. Had to do with the engine. Also had 2 recall items performed, which was how the issue was discovered.
129000 mi	Check engine light came on. Shop read code and diagnosed issue with coolant valve. Will cost approx $500 to repair. Have not made repairs yet.

41540 mi

C $706

Replace water pump (I think it was leaking). done under warranty !!

57000 mi

Coolant transfer pump was squeaking in cooler temperatures, replaced under warranty.

98000 mi US $250	Dealer replaced one of the two water pumps on a recall and said the other was leaking, and not covered, so we took it to our regular mechanic and he replaced the second pump.
162500 mi US $200	Prior codes were leftovers. Actual codes indicated inverter overheat. Electric side water pump failed. Replaced, ok now.
175860 mi US $1600	Main battery failed. Not the little 12 volt starter, the big high voltage hybrid battery. Replaced with used / reconditioned battery with a 18 month full warranty and 5 year prorated. Could have gotten a 1 year warranty battery for about $800, or a new battery from the dealer for $2400, but the dealer would not offer ANY warranty!
198000 mi US $325	Main (hybrid) battery failed again. Replaced under warranty at cost of labor only.
199000 mi	Cooling valve failed. Replaced by part from China via Amazon. Failed again a few months later. Cooling system valve failed AGAIN. Purchased / replace with dealer part.

62000 mi US $130	Inverter water pump failed and had to be replaced - although car is out of warranty, manufacturer paid for all but $130 of repair cost and provided free loaner vehicle
106000 mi	Hybrid battery failure

42628 mi US $870	flush fuel injectors;replace 2 front tires; alignment; oil change; replace air cleaner and cabin filters; spark plugs
61829 mi US $461	Coolant flow control valve replaced

65000 mi

US $750

water pump replacement

41400 mi

US $756

Two of the four coil packs failed and required replacement of all four spark plugs + two coil packs. The car was out of service for two days.

132700 mi US $500	Hybrid battery cooling fan failure; short in remote wires.
136800 mi	A coolant control valve needs replacement and throws a specific trouble code, but I've chosen to live with it (will repair eventually) as it doesn;t really affect the car's performance. It's the engine coolant; code is P1121; for a "secondary" tank that helps the engine warm up faster (hence why it's a non-essential repair).

67700 mi

US $300

water pump and belt replaced

139000 mi

US $80

hybrid main battery failure

85000 mi

US $240

Thermostat replacement.

170000 mi

US $240

Rusted exhaust pipe replaced

237460 mi C $200	Coolant Diverter Valve replaced.
267620 mi	Engine Water pump replaced
285100 mi C $140	Began losing coolant. one dealer diagnosed as faulty replacement ICE water pump and replaced at no charge (They had already replaced pump 8 months earlier. Coolant loss continued so I took it to another dealer who diagnosed faulty rad cap. Second dealer diagnosed and replaced faulty rad cap. Cost $130, No problem since.
296360 mi C $5430	Continued coolant loss eventually diagnosed as cracked engine block. Replaced the gasoline engine.
336040 mi C $68	Dealer was unable to resolve no heat problem despite over $800 in costs. I reverse-flushed the heater core numerous times and finally a quantity of what looked like flakes of black paint came out. It now appears to be heating normally

127000 mi

US $80

a piece of the exhaust pipe was replaced.

110000 mi

hybrid battery needed to be replaced. Toyota has extended battery warranty to 150k miles.

93000 mi	Warranty/Service Campaign replacement of the inverter electric cooling pump.
103600 mi US $120	coolant control valve, water pump, thermostat
105000 mi US $50	Cabin heat stopped working
113000 mi US $35	Radiator fill tube replaced. Seal failed causing coolant leak.
112000 mi US $600	Hybrid battery reconditioning

118 mi US $600	Inverter coolant reservoir cracked and discharged, causing car to go into limp mode (25mph) on the highway. Received CEL and notifications on car MFD. OBDII code indicated cam shaft sensor. Took to mechanic, verified diagnosis and replaced cam shaft position sensor.
160000 mi US $300	Replaced PCV. Also replaced spark plugs.

78000 mi	Electric Hybrid Water Pump p/n 04000-32528 replaced under a Toyota Limited Service Campaign. No symptoms noticed, no cost. Mysterious rattle/clunk in front end when going slowly over washboard road or RR track. Shop proposed an engine mount TSB that is a) not important, and b) $400, so I'm ignoring it for now. Also, I don't think it's an engine mount problem.
123700 mi US $447	Replaced inverter water pump. Also recall C0T - Steering shaft.

93000 mi

€275

Second oxygen sensor caused error P0138 the MIL turned on.

163000 mi	hybrid system inverter pump was replaced under campaign warranty.
320000 mi US $305	waterpump leaking coolant / pump and gasket replaced warning light was on / system failed test. Catalytic converter replaced.
340000 mi US $1878	Hybrid battery fail / replaced with used battery with 1 year warranty. part $1387.50 and labor $212.50
345100 mi US $394	radiator failed / replaced with used part $200.00 labor $157.50
358000 mi US $1384	5 months with the used hybrid battery it failed. It was on a 1 year warranty so the same shop installed (by my choice) a brand new Factory Battery deducting the price of the used one including labor. Has Factory warranty.

120200 mi

US $200

HV Battery at 40%. Deep cycled 3x.

207000 mi

US $80

Got the red triangle of doom. ECU gave an HV battery code. Checked and one pair (block) was 1V low. Bought used pair for 80 and swapped them in. Edit - After doing a few of these, I'd say it's doable in 6+ hours by yourself, but you definitely need something to help compress the modules in the pack so you can install the bolts on the pack's underside. I use wooden boards of differing widths and a couple wood clamps. If someone is helping you out and they're reasonably handy, you might be able to do this in 3-4 hours.

208000 mi

US $100

Another battery module went sideways, but this time it threw one of the "block XX becomes weak" because the module was weak, but hadn't failed (internal short) yet. I had picked up another 2007 Prius from a friend for $1500, so I PNO'ed this Prius and have been driving that since. I have a few decent modules I purchased off ebay to swap into the pack, but I'm planning to pull it and do some thorough testing and possibly rehydrating to see if that improves the pack's performance. TODO - Pull pack, cycle/measure battery modules, try to rehydrate modules with limited capacity, cycle/test those modules again, reassemble, test how the pack does in the car.

78000 mi

inverter water pump failed.

61000 mi

US $120

Coolant control valve failed. Part of Emissions system. Required replacement to pass State Inspection. Code P1121.

205000 mi US $120	Gasoline engine water pump noisy. Replaced the water pump
246200 mi US $200	Module in the hybrid battery failed. Replaced four modules and reinstalled the HV battery. Is functioning adequately for now. No idea how long this repair will last, could be months or years from now.

133200 mi US $153	Replaced serpentine belt.
182000 mi US $350	Exhaust system replacement

85000 mi US $639	The inverter water pump was replaced. I have listed this under "electrical repair" because I understand that this pump cools the AC to DC mechanism.
120000 mi US $130	The triangular warning light was coming on intermittrntly. At the last lube and oil, it needed oil, for the first time ever. The PCV valve was replaced, no additional oil was needed at the most recent l&o and the light has not come on since

210000 mi

US $110

Hybrid battery pack issue

79000 mi US $430	Water pump for gas engine was leaking.
146000 mi US $400	The coolant valve was stuck and had to be replaced.
157000 mi US $100	Drive belt was cracked so it was replaced.
175000 mi US $1600	Hybrid battery finally died. A private company came to my house and replaced it in under an hour.

135800 mi	Engine doesn't run; can drive a few more miles on the battery. Throws codes 3190, 3191, and 3193. CEL and large triangle with ! inside lights up on dash. After sitting 30-40 minutes, car drives normally again.
161800 mi US $800	P3190 and P3191. Replaced fuel tank assembly (includes fuel pump).

102000 mi	Replace cat converter...what a drag and big bucks!!!
200000 mi	replaced water pump replaced water pump

126000 mi US $220	Water pump and V belt replaced
134000 mi US $200	The check engine light came on and local Toyota dealer quoted $450 to $500. I ordered the coolant valve position sensor online for $80 and neighbor/friend installed for $100.00--all better now!

110900 mi

US $200

Electric coolant recovery pump was making noise so I replaced it.

163000 mi

US $38

One of the 28 cells in the hybrid HV battery went bad I bought a new one for $37.50 on Ebay and did the repairs myself. Fairly easy fix.

31862 mi US $2516	Exhaust mangled by road hazard. Replaced exhaust pipe assy FP# 17410-21500 plus 2 gaskets. Replaced all 4 tires Oil change/filter/fluids
77392 mi US $50	Hybrid inverter cooling pump replaced Hybrid inverter cooling pump failed. Dealer replaced (waited 1 week due to backorder) under Extn. Warr. Also request coolant storage pump replace (TSB-0087-08) due to loud squealing after shutoff. Dealer could not replicate/no repair

278000 mi

US $330

Exhaust pipe patched

270000 mi US $1300	HV battery died @ 268K. Replaced with warranted reman unit.
320000 mi US $30	Remanufactured HV battery had bad cell outside of 18 month warranty. Bought used cell off of Amazon for $35 and replaced myself.

138700 mi	Replaced hybrid battery pack under warranty
166000 mi US $2000	Hybrid battery pack failure, required replacement

83000 mi

Went in for routine oil change. When backing out of the garage, the next day, noticed oil spill all over floor. Took car back to dealer, and they had overtightened the oil pan gasket and cracked it, so they had to replace it. No more oil leak!

98000 mi US $585	Leaky water pump. Pump making rattling noise. Pump replaced, drive belt replaced, system fluid changed and system vacuumed down.
117000 mi US $2600	Replaced traction battery in vehicle after it failed.
117000 mi US $300	Catalytic converter stolen, replaced. Covered by comprehensive insurance. $300 deductible. Repair cost $1800 without insurance.

223000 mi	Traction Battery Cell went bad. Had to pull, rebuild, electrically cycle and rebalance charge on cells.
223000 mi US $2000	I originally was working to rebalance my hybrid battery, but I never got the vehicle back to good condition. I chose to replace with a new hybrid (traction) battery.

112000 mi

US $350

Replaced leaking water pump and replaced engine coolant

176000 mi

traction battery failing - red triangle of death. Cell block showing much lower voltage.

284000 mi

US $5

~1" through-hole in the exhaust pipe between rear flange and muffler. Welded a piece of pipe in to patch the hole.

53000 mi

US $3879

Hybrid battery failed and needs to be replaced. Will trade car instead.

84800 mi £60	Pipe separated from flange due to corrosion/wear. Repaired by welding.
148000 mi £20	Exhaust pipe separated from flange due to corrosion/wear ( again ). Repaired by welding.

185000 mi US $28	Oil change
188000 mi US $100	Battery pack errors. Using Dr. Prius app and guidance from Eric Powers I identified and replaced a bad module. But I didn't check the back sides of the bus bars. Reinstalled pack ended up also coding after ten minutes. Removed pack and found one bus bar was black on the back. Cleaned it, reinstalled pack, now working well.

148700 mi US $2300	Hybrid battery needed replacement.
152000 mi US $400	Water pump (for ICE) needed replacement
198000 mi US $600	One of the cells in the rebuilt hybrid battery failed. A replacement cell cost only about $40. However,the labor to remove the bad cell and replace it, cost about $560.
247000 mi US $300	O2 sensor was replaced

73000 mi

US $307

Check Engine light went on. Oxygen sensor was replaced. Check Engine light went off.

114000 mi

US $300

Hybrid battery failure and fix

186000 mi

US $35

Burning some oil...had the engine cleaned

217000 mi

US $1800

Catalytic converter

230000 mi US $100	High voltage battery failure had to replace 2 bad modules
245000 mi US $40	Replaced one bad battery module took 3 hours and 40$.
248000 mi US $40	Replaced 1 bad battery module took 2hrs and 40$
253000 mi US $120	Replaced 3 hybrid battery modules 2 different repair.
273000 mi US $30	Replace 1 hybrid battery module
280000 mi US $80	Replaced 2 bad battery module

190000 mi

Driving and car died. Towed home and researched on internet that electric inverter coolant pump for hybrid engine was the cause. Replaced fuse and pump and car was good. Got recall 1 month later and sent Toyota my receipts and refunded $.

174500 mi

US $300

Coolant control valve was stuck causing the engine light to come on. Valve replaced.

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150000 mi

US $350

water pump valve needed to be replaced

192500 mi US $2600	Replaced the hybrid traction battery ourselves.
247000 mi US $45	The water pump was making lots of noise when it was spinning; possibly a bad bearing. Replaced the water pump.

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113000 mi

US $300

broken exhaust pipe; repair caused rattle fixed by dealer

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6262 mi	Technical service bulletin. Replaced fuel filler tube. Reprogrammed ECU.
7210 mi	Check engine light on. Fixed leak in fuel evaporation canister.

66000 mi

US $700

Water pump (main) was 'crusted over'.

112000 mi

Repaired in June. Car died on road. Wichita Toyota dealership replaced a fuse to repair,charged $240 service advisor lied as to which fuse I later found out. Replaced faulty cooling pump myself.

131000 mi

US $650

One of the water pumps (not under warranty) failed. This resulting in an overheating warning popping up on the car screen. Water pump was replaced.

57040 mi C $44	Check engine code P0138 post-catalytic converter O2 sensor. Part ordered.
58900 mi C $400	Dealer replaced O2 sensor, but check engine light still came on. I then purchased a ScanGauge for $170 to clear and diagnose the problem.
61380 mi C $366	Check Engine light P0031 fixed by replacing air-fuel ratio sensor. I purchased the replacement sensor over the Internet since dealer price was high.
116560 mi C $730	Replaced oxygen and air/fuel sensors to clear check engine light. Also replaced a leaking exhaust gasket. Dealer also replaced inverter cooling pump at no cost (recall). Replaced brake fluid (maintenance item).
141020 mi C $350	Replaced stainless steel muffler since it had developed a hole.
213665 mi C $202	Exhaust shield above catalytic converter rusted and loose. Dealer secured it.
218860 mi C $200	Dealer fixed loose heat shield in the rear (different one than before) that was rattling
230038 mi C $93	Check Engine Light, codes P0011, P0012, P0016 -- intermittent at first then continuous. Car ran fine. Replaced Camshaft Timing Oil Control Valve. No more Check Engine Light.

159000 mi

US $685

Hybrid (traction) battery replaced with one from 2007 wreck with 67000 miles.

154380 mi C $10	Car was idling rough and threw a code of misfire. Used carb cleaner to clean up intake egr area. Problem was resolved.
160580 mi C $150	routine maintenance: changed spark plugs, PCV valve and MAF sensor.

95480 mi C $50	Water pump (the one for the ICE engine) preventive replacement, sign of light leaks, changed under warranty.
105480 mi C $200	One ignition coil was full of water. When the engine was warm (lean combustion) engine was knocking very hard, misfire on cylinder #1. The ignition coil has been replaced (95$ part + 1 hour work) and the problem has been solved.

145000 mi US $1500	Water pump was replaced.
189000 mi US $900	HV Battery died. R&R Battery. Works fine now

120000 mi

US $810

I got the red triangle of death and had the car towed to my dealership. It ended up being that the car was almost out of oil

196000 mi US $2000	HV battery failed at 194k miles. High RPM when accelerating. SOC fluctuated rapidly. MPG OK. Later the dashboard lit up - P0A80 code. ReInVolt (NC) supplied a refurbished battery for $1600 to my Dealer (CT) who installed it for $400.
200000 mi US $40	Car refused to start with error codes. Reset by disconnecting 12v to get going and drove to AutoBeYours in southern Indiana. He found a HV battery connector had not been fully clicked home at my dealer when they installed the HV battery.
280000 mi US $300	Rear Muffler - Hole in exhaust pipe

161000 mi

US $3000

Replace Hybrid Battery Pack

202500 mi US $320	Pinging during half throttle going up hills. Throttle body and intake had carbon that may have been affecting fuel mixture. Components cleaned.
272000 mi US $85	Low engine power DTC, caused by a loose battery ground connection. Faulty ground caused engine to run rich, damaged the catalytic converter. Still need to be addressed.
306000 mi US $500	Cat and spark plugs replaced. Resolved pinging problem experienced since 2014.
323000 mi US $300	Hybrid battery failed. Replaced battery with a used battery
326000 mi US $1800	Traction battery was replaced with a lower mileage battery.
385000 mi US $250	Thermal storage pump failed and was replaced.

45000 mi	Inverter Water Pump. Car not driveable. Parts had to be ordered. Took 2 days for parts to arrive and 1 day to install.
106000 mi US $400	Gas engine water pump was considered leaking by the dealer. Not noticed by owner.
110300 mi US $346	Water pump and thermostat had to be replaced
134997 mi US $2600	Hybrid Battery Replaced. Car 14 years old. Low mileage. Claimed it was because of age.

82000 mi

Many warning light Coolant pump failure.

119040 mi C $100	Fuel injection system needed to be adjusted and cleaned.
124000 mi C $300	Water pump was leaking - needed to be replaced.

114000 mi

Inverter coolant pump failed, Inverter temps got too high and CEL lit. Care did not operate at full power, lost AC. Had Recall notice in car but hadn't had it performed prior to event. Repaired at no cost.

261700 mi US $30	Engine began missing, running rough. MIL came on in 20 miles. Replaced spark plugs to correct. They had at least 68K miles on them, the amount I put on the vehicle.
307500 mi US $16	Engine began missfiring and MIL (malfunction indicator lamp) came on indicating same. Replaced spark plugs, previously done at 260K.
334000 mi	Misfire on #2 spark plug/cylinder. In pulling the plug, found clear water (not coolant or oil) around the plug and ignitor. Dried everything off, did the same for #1, and swapped plugs. Cleared the alarm. No further difficulty; no parts replaced (plugs have under 50K on them).

129000 mi

US $453

Failure of the Inverter pump

90200 mi

Inverter pump failed, replaced under extended warranty.

135000 mi US $5200	Hybrid Battery was replaced Engine was replaced
156000 mi	The hybrid battery was replaced on warrenty

115000 mi

US $460

While the car was at the dealership for an oil change, we were told that the inverter coolant pump was noisy and needed replacing. The car was taken to an indy shop, who said that there was no problem with the inverter coolant pump.

117000 mi US $500	Replace faulty inverter coolant pump for main battery recharge system. P0A93 computer code.
118000 mi US $275	Hybrid Battery cooler pump failed.

20000 mi

warranty software upgrade possible recall

128000 mi US $250	Leakage from the dealer installed recall water pump required install of new pump.
147600 mi US $360	Craig's List ad for main battery repair due to lower charging over several months and unusual charge rates. Check performed on all cells and two replaced. Solved inconsistency noted in battery feedback and MPG improved to 49 from 44.
152000 mi US $450	Had main battery checked and replaced three of 28 cells. Charging of battery had been rapid cycle indicating a problem which was resolved
155200 mi US $1770	3RD RESOLUTION OF WEAKENING DRIVE BATTERY. BOUGHT NEW G3 BUILT ON G2 FRAME FROM NJ SUPPLIER. INSTALLED BY LOCAL MECHANIC WHO DID FIX #2 REPLACING 3 ELEMENTS IN NOV 2015,

144000 mi

US $470

Inverter cooling control valve replacement (check engine light came on)

101000 mi US $400	Replaced inverter coolant pump
123000 mi US $300	Water pump early stages of failure (noise, binding, leaking). Replaced water pump and engine coolant. Also replaced water pump belt, spark plugs, PCV, oil/filter, air filter, and rotated tires.
126000 mi US $350	Hybrid Inverter Coolant Pump Failure (DTC P0A93). 2nd failure (first in June, 2008). Managed to limp home, then to dealer.

130000 mi US $450	Water pump replaced. Impellor bearing bad
214500 mi US $999	Hybrid battery failed after 215,000 miles. Went to a local service that installs re-manufactured batteries. Repair only took a couple hours. Car drives great now and gets better gas mileage.

71000 mi

US $380

Had to replace cooling system for hybrid system. Inverter I believe they called it. Later recalled and reimbursed.

127000 mi

US $360

Ice was making more noise than usual, mentioned it when getting scheduled oil change, mechanic said bearings were going out on the water pump, replaced the belt as well. Purrs like a kitten now.

90000 mi US $400	Replace water pump for gas engine
139000 mi US $400	Diagnose poor heater, replace one thermostat

155000 mi

US $380

I.C. Engine water pump.Remove and replace.

67000 mi

US $350

Inverter Pump...ordered but not yet replaced|car is in shop now. Also(after being told the car was safe to drive until part came in) 12V battery failed on interstate|lost all power and car automatically shifted into neutral|had car towed

189000 mi

US $300

Replaced one of the coils

170000 mi

US $450

Leaking water pump Leaking radiator

22673 mi	Dash warning lights on. Codes P0A60, P0A63, P0A72, P0A75, P0A7A, P0A78, P3212, P3222. Coolant leaking inside Inverter housing. Replaced Inverter. (Possible indication of MFD issues with that many codes?)
44044 mi US $422	Check engine and dash warning lights on. Codes for Inverter cooling system, high voltage ECU, and ABS-TRAC system. Repaired frayed wire to Inverter cooling pump. (Possible packrat damage or more evidence of intermittent MFD problems?)
44121 mi	Check engine light on. Error code P043A. Replaced water pump assembly.

176000 mi

US $480

Inverter coolant pump failed. Electric pump caused fuse to blow and system shutdown. Repaired in one day by dealer.

114000 mi US $350	Engine Water Pump replaced (technician noticed leak, and I had read they should be replaced in the Prius at ~100K). Noticed during inspection.
164000 mi US $147	I brought the car in for its standard 5000 mile oil change, tire rotation, and inspection. The inspection revealed drive belt appeared cracked/worn, so I opted to replace it.

110000 mi

Inverter coolant pump failed. Dealer replaced the pump at no charge due to Toyota Limited Service Campaign for Inverter Coolant Pump.

173000 mi

US $200

The traction battery went bad. I got a new battery from a 2007 Prius with 26k miles from a junk yard. The battery was 400 and Toyota gave me 150 back for the old battery. I will also sell the battery ECU for maybe 50.

96000 mi US $200	Water pump leaking. Water pump was previously repaired under recall.
151000 mi US $1200	Replace hybrid water pump and leaking radiator.

56000 mi

US $600

water pump for electric motor failed

264000 mi

US $500

POA280 code. Replaced hybrid drive battery with one from a wreck.

85000 mi

US $500

Replace water pump.

98580 mi

Water pump changed after replacing the serpentine belt. The dealer suggested the replacement of the ICE water pump after seeing light coolant leak. The change was done under warranty. The dealer did the replacement on my second Prius too.

96000 mi US $545	P1121 code, changed coolant valve and also replaced gas hose and gas cap also replaced gas hose and gas cap
112600 mi US $3900	Battery failed, and had to get new Battery. Instead of replacing dead cells, replaced entire battery.

61000 mi

Dealer reported leak @ water pump while trouble shooting an open circuit in air bag system. Decided to have local Goodyear dealer install. Do not trust, repeat - do not trust Toyota dealer where we purchased our Prius.

76000 mi

US $176

Original water pump was leaking, so replaced water pump.

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59982 mi	ECU replaced under warranty.
90482 mi C $900	codes: p0440 p0441 p0446 p0300 p0202 p0504. Diagnosed faulty coolant pump. Replaced. Bled. Unknown at to why they did not get this covered under hybrid systems warranty.
142600 mi C $70	Engine was missing and running rough. Worse on wet days and when engine was warm. Problem was intermittent. Codes were random misfire on most cylinders. Codes P0300 P0302 P0303 P0304. It turned out to be one bad ignitor. One bolt to replace.

115340 mi

US $385

replaced waterpump

134000 mi

US $130

Cat needed holes closed

160300 mi

US $2500

This car was not running right when i purchased and it's not running at all now. I removed the HV Battery and ordered a rebuilt one.

152000 mi

US $1310

replace coolant flow control valve replace main 100amp fuse

133500 mi US $887	electric pump in cooling system of hybrid/electrical drive system failed. Had to chase the problem, then take front bumper off and left headlight out, to replace this 'coolant pump'.
161000 mi US $760	Transmission mount broke, dropping transmission case onto left front axle... REquired new mount and new axle
164100 mi US $400	Cells in main battery failed. Replaced 2 cells. problem solved.
171658 mi US $350	One bad cell inside main battery. Mechanic replaced it within few hours, for $350 charge. Car again running fine.
178000 mi US $1800	had replaced cells in main battery over past two years. but this time, when another cell failed, I decided to replace the main battery. Independent garage owner, with whom I have dealt for several years and serviced the 2003 Prius, ordered a rebuilt main battery, with price of total job.. $1800 installed... very satisfied with his work.

101500 mi US $50	Water pump bearing had been noisy for a couple months. I replaced it.
117000 mi US $35	Setting misfire codes, running rough. Suspect bad gas or injector. Won't pass DEQ test. Ran BorgWarner injector cleaner routine (professional system). Checked spark plugs OEM and still good!! New air filter. Cleaned throttle body. Runs great again & passed emission test for tag renewal. YAY!

47000 mi

US $2200

HCAC bypass valve stuck. Toyota has to replace entire exhaust and catalytic converter because of one small part that rusts shut.

143000 mi

US $953

Invertor cooling pump Throttle body

160000 mi

US $500

Check engine light. Code 3130. Need new inverter coolant pump. Mechanic says radiator leaks. Cost estimate $1000.

96000 mi

US $250

Problem was with hybrid battery and systems. Original warranty covered repair. Also replaced water pump (owner expense).

133000 mi

US $75

Replaced bad module in battery pack.

148600 mi	Misfiring cylinder
174400 mi US $1200	Catalytic converter

102000 mi

US $80

Belt on water pump cracked.

95000 mi

US $360

Main hybrid battery gone bad. Too expensive to replace relative to value of car. Disposed of car

138000 mi

US $500

Replaced inverter cooling pump

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205800 mi

US $2450

traction battery (the big one) tested bad, with two cells failing. Throwing codes and red triangle warning icons. Installed refurbished battery

180500 mi

US $1600

Hybrid Battery needed rebuild

168200 mi

US $1700

MG2 stator burnt, replaced.

109000 mi

Replaced the oxygen sensors. Heater for one seems to be bad.

213000 mi

Also recently developed an exhaust leak under the hood.

20539 mi	Replace charcoal canister (warranty)
57078 mi	Replace ECM (warranty)
64920 mi US $150	Replace Crankshaft Position Sensor (warranty), replace weatherstripping in trunk
116694 mi US $1717	Replace Hybrid Battery - 50/50 split of cost with dealer
157000 mi US $1400	Catalytic converter replacement

130000 mi

US $105

The dealer cleaned the Mass Air Sensor to cure a stall-at-start-up problem that I used a work-around for 5 years to avoid (I shifted into Neutral after start-up and waited to hear a relay click before shifting into Drive).

219000 mi

US $140

replace mass airflow sensor

254000 mi

US $140

inverter pump quit, replaced

224000 mi US $516	Inverter electric water pump replaced,none in USA per dealer had to use rental for week.
242000 mi US $90	engine shuddered on start up. Replaced plugs because computer readout said misfire #2. Swapped coils around to verify not coil. Mechanic said valve cover gasket leak might be cause will cost $150 to replace. Then will have to do cmptr ck agn
249000 mi	Warning lights are on. As of late July still haven't taken it to the dealer. Shudder, gasket leak still present as well.
250000 mi US $2633	I found Greentec auto online and ordered a replacement 1st gen battery pack. They came down from Dallas and removed/installed battery pack behind back seat.The total bill was for labor, material and sales tax.
250700 mi	I had a couple of warning lights come on that the manual said tow to dealer. I trailered it myself, it ran but I didn't know how long it would.They did a diagnostic test and said the battery pack was defective. Greentec auto called me and had me do some simple diagnostic tests involving the warning lights. They agreed the battery pack was defective and sent a tech with replacement battery pack.

1000 mi	bad sensor on the catalytic converter. Covered under warranty
110000 mi US $2800	MG1 hybrid electric traction motor failed.

145700 mi US $395	HV battery replacement. Replacement battery was a re manufactured battery from ReInvolt.
140800 mi US $250	inverter cooling pump failure.

148180 mi A $155	Car displayed CEL with other warning lights and would not start after 12V battery went flat and was recharged. Workshop cleared codes and car started and ran without further issues.
148480 mi A $461	Inverter water pump replacement
156860 mi A $270	High voltage battery replaced
165850 mi	Water accumulated in spark plug well causing misfiring. Removal of coil, absorption of water with paper towels, replace parts and test. The water found it's way into the spark plug well because I'd been parking the car under a tree and falling leaves were blocking drains at the base of the windshield. When it rained intensely, water overflowed onto the engine. The rocker cover has a recessed area where the coil and spark plugs ate fitted - a good spot for water to collect!

155700 mi

US $495

Hole in the radiator; had to replace radiator.

79000 mi

US $500

Replace inverter coolant pump

130000 mi US $21500	main computer at 16,000 miles (very cold -25 degrees) replaced no problem. warranty No other problems / repairs
155000 mi US $1100	sensor, communication between motor and hybrid system

70000 mi US $7000	Power inverter coolant pump failed; told had to replace both pump and inverter. Requested dealer repair comp parts, since car only a couple of months out of warranty; they refused. When the car was returned the AC did not work, 2nd repair
88000 mi	Car is still in shop; identical warning lights 2 wks after initial repair. Shop could not diagnose, first said computer, then power inverter AGAIN. No charge but without the car for over four weeks now.

225000 mi US $2150	HV battery failed and replaced
229000 mi US $5	P1436 code check engine light. Lubed and freed catalytic converter warmup valve. Sticks from road grime.
234000 mi US $120	exhaust gas leak. Attempted replacing both donut gaskets to no avail. trying other things next.
295000 mi US $1100	Plug for catalytic warm up valve broken wire

102889 mi	I think this was the gas tank problem (warranty repair). Error code: TSB 0-180-09. Corrected by EG9016.
159000 mi	Cell 6 of HV battery is weak. Lots of conflicting advice from mechanics and Prius owners who have dealt with this problem. Can drive for a year or a day.

119140 mi €1500	Car entered limp mode, with only electric motors working (gasoline engine would not start). After a tow to the dealer, the car was diagnosed with a catalytic converter failure, which was replaced.
119660 mi €1500	Car drove normally, except for a loud whine and a shudder when starting from a complete stop. OBD2 scanner showed excessive MG2 temperatures, so the shop replaced the motor assembly. (Repair cost is approximate)
120280 mi €150	Replaced HV battery wiring harness (corroded). Problem was discovered with Toyota OBD scanner while trying to diagnose another problem (engine not starting). Engine started then stalled after a few seconds. Fixed by cleaning the throttle body.

129000 mi

US $799

Fuel pump failed - had to replace both pump and fuel tank as they are one unit in this Prius. This vehicle is a piece of s---.

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126000 mi

US $700

I successfully rebuilt the main hybrid battery using gen 2 cells.

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280100 mi

US $2500

HV Battery replacement. Replaced with battery from re-involt.

133000 mi

US $100

Getting a leak to ground fault. I had the problem diagnosed at a non-dealer shop, and took it to the dealer to get additional diagnosis. After spending $100. dealer gave me only the code I already had! Dealer did not provide subcodes. Replaced MG2 rotor. Replaced main battery

78000 mi

US $3100

Big (270 volt) battery replaced.

137020 mi

Malfunction of engine/drive system.. Car stalled out a few times, dealer could not repeat and no repair was done... Has not reoccurred but does show up at least once a year.

114700 mi US $110	Check engine light on signaling fault in fuel tank vapor recovery system. Dealer diagnosed as the filler cap or the vapor cannister. Suggested replacing the cap but didn't have one in stock.
116100 mi US $10	Car recorded an error code for fuel tank vapor recovery. Hose clamps on vacuum lines had rusted, allowing a vacuum leak at fittings. I replaced clamps and the code has not returned.

227000 mi US $48	Cat Converter sensors indicated failure. Mechanic advised me to put tape over the indicator light and keep driving. Will not effect operation or mileage.
262000 mi US $100	Drive battery bit the dust. Failure warning. Cost to repair is $3,500+. Car is being sold for scrap.

249000 mi

US $50

Replaced gas pedal assembly/ throttle position potentiometer defective and caused engine to stall/shut down / dealer price was $425.00. I purchased pedal from 25k mile salvage Prius for $45.00 off eBay+ $5 shipping. Replaced gas pedal assembly/ throttle position potentiometer defective and caused engine to stall/shut down / dealer price was $425.00. I purchased pedal from 25k mile salvage Prius for $45.00 off eBay+ $5 shipping.

215000 mi US $424	Had to clean the Mass Air Sensor and the intake. The motive battery charge was very low which caused the dire warnings and did not let the engine to keep running.
231800 mi US $80	Mass Air Flow sensor

65000 mi

US $100

Fan belt needed to be replaced. New air filter.

99000 mi

US $2157

replace main battery with refurbished. also replace serpentine belt, cracked, cooling system flush / inverter, drain and fill transmission fluid. car owner paid FULL cost of repair.

US $450

replaced transmission with a donor (junk-yard)

200000 mi

US $450

Water pump replaced that cools electric motor.

220000 mi US $450	Replaced spark plugs and coils
230000 mi US $1050	Water pump fan disintegrated and failed

140000 mi

US $1000

Inverter water pump failure.

125860 mi

C $1500

Hybrid Inverter

245300 mi

US $1415

catalytic converter needed to be replaced, since Calif. will be requiring smog checks sometime in 2015

230000 mi

Car would not start (no "READY" light, and all error lights on). Mechanic traced to engine computer not communicating with hybrid computer. I declined repair due to the cost. I am not operating the car now even though it runs and drives.

110000 mi	CC giving P0420 error. Apparently a known issue. $1500 to repair just for parts. Living with it.
149500 mi US $300	Replacement catalytic converter, generic part, to solve Check Engine light issue.

150040 mi

C $1500

Drive battery replacement

117000 mi US $1300	Failed emissions test for ongoing problem with ECM that causes the cel to come on in cold temperatures. Initially diagnosed in December 2007, but the repair was expensive and only intermittent, so I held off. After I called for appointment for previously listed problem, CEL came on and stayed on despite warmer temps. Mechanic notes: FOUND 3 DIFFERENT CODES STORED IN THE ECM, ECM CODE, CODE P0171 FOR A MASS AIR FLOW SENSOR, ALSO FOUND A 300 MISFIRE Replaced ECM. They reviewed my service history and agreed to cover cost given I'd had almost all maintenance done @ a dealership.
117500 mi US $431	Replaced Air Flow Sensor, $253
130000 mi	P0302 - Cylinder 2 Misfire Detected Since spark plugs had been done one year ago, that was not suspected as the problem. May have been a loose gas cap. Code reset, will see if comes back on.

192200 mi

One of the electric motors in the prius was broken and it cost approx Cad$4000 to fix it. Sold it to some one for cad$850.

148000 mi US $3100	HV (hybrid) battery had a bad module, required replacing and new harnesses.
187000 mi US $270	Car had check engine and major warning lights come on. I coasted it to a stop, had it towed it to auto mechanic. DTCs included for Aux battery, transaxle, inverter. DTCs localized to MG2 (= the larger of 2 electric motor/generators in HV transaxle assembly). Said to replace full Transaxle for $5,400. Luscious Garage in SF does MG2 replacements for $2,700. But I'd need to get car towed to SF.
195000 mi US $3000	Replaced MG2, the motor generator.

133900 mi

US $2050

Received a reconditioned "main" battery pack, from Green Tec up in Sacramento, CA. Pack was installed at my home, and old battery pack went to them. $1700 plus $350 for installation.

123000 mi US $400	I got the triangle w/!, the car continued to function, I took it directly to my local shop, Ozzie's. Diagnosed (from the code) that the ignition coil was bad and needed to be replaced. They also replaced the spark plugs (1st time in yrs)
132000 mi	check engine light came on, it turns out it was just the gas tank cap. I had driven to the desert and back the day before and probably the change in altitude going over the mountains affected it. It was on empty when the light came on.
208000 mi US $200	Check engine light kept coming on, then red triangle of death lit up. The diagnostic codes reflected a misfire in cylinder #1. All coils and spark plugs were checked and were in working order. The air intake was cleaned along with the 02 sensor. The problem persists with unknown cause.

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95000 mi

US $890

Got triangle warning/check engine lights. Dealer said it was engine startup/misfiring problem in the fuel injection system and they would have to replace gas tank, clean the (something)plate, replace the spark plugs, etc.

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