61960 mi A $300

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

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

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.

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.

128000 mi

Replaced hybrid battery due to premature failure.

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

139820 mi A $991

Replaced hybrid battery with a reconditioned one.

126000 mi US $4000

Had to have Prius hybrid battery replaced

137300 mi

The Hybrid battery was bad.

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.

119000 mi US $1500

Water pump replaced

115000 mi

hybrid battery was replaced under warrenty

75000 mi US $120

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

83260 mi

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

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.

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.

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!

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

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.

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.

83300 mi US $450

Coolant control valve stuck

102000 mi US $2000

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

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.

187000 mi £50

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

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.

119000 mi US $100

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

217000 mi US $55

3 way coolant control valve replaced.

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.

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.

128000 mi £500

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

129000 mi £700

Rear box perforated and replaced

182000 mi US $1549

Hybrid battery failure - replaced with with reman battery

109900 mi US $2316

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

140000 mi US $400

P1121 coolant control valve remove and replace

173000 mi US $150

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

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.

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.

184000 mi US $85

3-way coolant flow valve.

142000 mi US $300

Investigate oil leak.

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

162000 mi US $300

Engine Water pump, also coolant recovery tank pump

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.

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.

30000 mi US $300

needed new water pump

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.

154000 mi US $220

Replace water pump

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.

70000 mi US $620

The pump for the inverter needed replacing.

133000 mi US $570

Failed relay from high voltage battery

143800 mi US $400

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

121200 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.

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.

30380 mi

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

142200 mi US $500

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

17000 mi

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

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.

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.

26000 mi

Coolant pump sounding noisy. Replaced pump under warranty.

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.

165000 mi US $1300

serpentine belt, pulley replaced

99000 mi US $150

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

96000 mi

water pump cracked, needed replaced

205000 mi US $1

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

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.

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.

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

54300 mi US $500

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

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.

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.

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.

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.

116000 mi

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

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.

41000 mi US $37

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

96200 mi US $400

The water pump was replaced.

68000 mi US $200

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

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

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.

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)

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

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.

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

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

185000 mi US $300

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

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 .