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What 516 owners told NHTSA about the 2011 Toyota Prius

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (516)Crash / fire / injury (44)Brakes (270)Electrical system (68)Lights (49)Airbags (46)Engine (46)Speed control (28)Transmission & drivetrain (18)Electronic Stability Control (esc) (16)Visibility & wipers (13)Fuel system (11)

3 of 516 complaints match · Speed control · crash/fire/injury only · clear filters

Jun 17, 2017Speed controlCrash

MAKING RIGHT TURN INTO A PARKING SPOT AND THE CAR ACCELERATED STRIKING A PARKED CAR TO MY RIGHT AND MY CAR WAS STOPPED BY A CEMENT HANDICAP RAMP. THERE WAS EXTENSIVE FRONT END DAMAGE TO MY CAR, AS WELL AS THE FRONT PASSENGER DOOR. THE CAR ON MY HAD THE RIGHT FRONT BUMPER REMOVED AND THE WROUGHT IRON RAILING ON THE RAMP SEVERELY DENTED.

NHTSA ODI 10995691

Sep 23, 2015AirbagsSpeed controlBrakesCrash

TL* THE CONTACT OWNS A 2011 TOYOTA PRIUS. WHILE ATTEMPTING TO PARK, THE DRIVER DEPRESSED THE BRAKE PEDAL AND SUDDENLY THE VEHICLE ACCELERATED FORWARD AND CRASHED INTO A POLE. DURING THE CRASH, THE FRONT END SUSTAINED SIGNIFICANT DAMAGE. THE AIR BAGS DID NOT DEPLOY. NO INJURIES WERE REPORTED AND A POLICE REPORT WAS FILED. THE VEHICLE WAS DESTROYED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 21,000.

NHTSA ODI 10775436

Aug 8, 2014Speed controlCrash

TL* THE CONTACT OWNS A 2011 TOYOTA PRIUS. THE CONTACT STATED THAT WHILE ATTEMPTING TO PARK AT 3 MPH, THE VEHICLE ACCELERATED INDEPENDENTLY AND CRASHED INTO A PARKING BUMPER. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 34,000. UPDATED 11/17/2014*LJ UPDATED 4/29/2015*JS

NHTSA ODI 10620999

Working with the data? Download all 516 complaints as CSV · fetched from NHTSA July 10, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2011 Toyota Prius verdict →