2011 Toyota Prius Toyota Prius 2011

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2011 Toyota Prius repairs by problem area

Engine (22%)

Transmission and Drivetrain (2%)

Brakes and Traction Control (5%)

Suspension and Steering (11%)

Electrical and Air Conditioning (29%)

Paint, Rust, Leaks, Rattles, and Trim (26%)

Other (5%)

Chart based on 121 repairs.
See TSBs and recalls for the 2011 Toyota Prius.

2011 Toyota Prius engine repair cost distribution

$2500+ (7%)

$1000 - $2499 (4%)

$500 - $999 (11%)

$100 - $499 (11%)

< $100 (67%)

Worried about potential repair costs? An extended warranty can provide peace of mind.

Chart based on 27 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2011 Toyota Prius 4dr Hatch

98-horsepower 1.8L I4 Hybrid CVT FWD

121000 mi

US $925
Replaced Fuel Pump 
219000 mi

US $160
Replaced mass airflow sensor - rough idle, reduced fuel economy, CEL 
228000 mi

US $3800
Leaking head gasket 
158000 mi

US $224
engine check light revealed replace mass air flow sensor 
94500 mi

US $50
regular maintenance 
84000 mi

US $60
Heat shield had come loose and was rattling quite a bit. Mechanic removed it because it isn't strictly needed. 
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. 
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.  
106000 mi The car went into limp mode. Had it towed. Discovered it was the inverter which was covered under extended warranty! 
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. 
82000 mi

US $500
seal was leaking head gasket 
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. 
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. 
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 
4000 mi Oil warning light directing me to take the car to the dealer where I bought it. 
5000 mi Rough start after cold soak per TSB 
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. 
36000 mi leaking oil seal 
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. 

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See TrueDelta's information for all Toyota models.

2011 Toyota Prius Engine Problems

See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently 2011 Toyota Prius problems occur, check out our car reliability stats.