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What 179 owners told NHTSA about the 2016 Toyota Prius Phev

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 (179)Crash / fire / injury (14)Visibility & wipers (43)Electrical system (26)Brakes (23)Engine (19)Speed control (17)Transmission & drivetrain (15)Body & structure (12)Airbags (11)Tires (9)Fuel system (6)

5 of 179 complaints match · Speed control · crash/fire/injury only · clear filters

Apr 20, 2021Speed controlCrash

WHILE SLOWING AND PULLING INTO A PARKING SPACE, IN FRONT OF THE DENTIST OFFICE WHERE MY WIFE HAD AN APPOINTMENT, THE VEHICLE SUDDENLY ACCELERATED. IT JUMPED THE CURB, AND SHE STEERED HARD RIGHT TO AVOID THE BUILDING DIRECTLY IN FRONT OH THE PARKING SPACE. SHE SIDESWIPED THE FRONT OF 2 VEHICLES PARKED NEXT TO THE SPACE SHE WAS MOVING INTO, AND THE CAR CONTINUED TOWARD THE STREET. IT HIT THE CURB GOING OUT OF THE PARKING LOT AND THE CAR FINALLY STOPPED. A PERSON CAME TO THE DRIVERS SIDE OF THE CAR AND ASKED MY WIFE IF SHE WAS OK, AND SAID SHE SHOULD TURN THE CAR OFF - WHICH SHE DID.

NHTSA ODI 11413018

Nov 2, 2020Speed controlCrash

SPONTANEOUS ACCELERATION INCIDENT. I WAS SLOWLY PULLING INTO A PARKING SPACE IN A PARKING GARAGE. AS I STRAIGHTENED IT OUT TO COMPLETE THE MANEUVER, THE CAR TOOK OFF ON ITS OWN AND HIT THE WALL OF THE PARKING GARAGE THERE WAS SOME DAMAGE TO THE FRONT END. A SIMILAR INCIDENT OCCURRED ONCE BEFORE WITH NO DAMAGE. TOYOTA HAS HAD RECALLS IN PRIOR YEARS FOR THIS PROBLEM - BROKEN THROTTLE RETURN SWITCH - BUT THEY INSIST THIS ISN'T THE PROBLEM HERE. ESSENTIALLY THEY ARE CLAIMING THIS DIDN'T HAPPEN, THAT WHAT I EXPERIENCED WITH THE CAR JUST TAKING OFF ON ITS OWN DIDN'T HAPPEN. THE CAR ISN'T SAFE TO DRIVE WITHOUT GETTING THIS REPAIRED, BUT THEY CLAIM IT DOESN'T NEED REPAIR. IN THEIR RESPONSE LETTER, TOYOTA SAID, "THE EVENT DATA RECORDER (EDR) RECORDED THAT THERE WAS ACCELERATOR PEDAL APPLICATION AND NO BRAKE APPLICATION LEADING UP TO THE IMPACT." OF COURSE THERE WAS NO BRAKE APPLICATION, THERE WAS NO TIME TO APPLY THE BRAKE! THE CAR TOOK OFF LIKE A BAT OUT OF HELL AND RAMMED INTO THE WALL IN 2-3 SECONDS! THIS IS NOT ONLY A DANGER FOR ME AND MY CAR BUT COULD BE FOR OTHER PRIUS OWNERS AS WELL. I HAVE A YOUTUBE VIDEO ON HOW TO DO THE REPAIR BUT I CAN NOT UPLOAD IT HERE.

NHTSA ODI 11372683

Sep 28, 2020Speed controlCrash

CAR ACCELERATING WITH NOT BEING ABLE TO STOP WHEN APPLYING BRAKE, CAR WAS PUT IN REVERSE AND TOOK OFF WITH ENGINE RACING IN HOME DRIVEWAY.

NHTSA ODI 11361559

Mar 16, 2020Speed controlCrash

TOYOTA PRIUS. CONSUMER WRITES IN REGARDS TO UNINTENDED ACCELERATION. *LD THE CONSUMER THE VEHICLE ACCELERATED ON IT'S OWN STRIKING 2 VEHICLES. *JS

NHTSA ODI 11318434

Nov 26, 2018Electrical systemSpeed controlBrakesEngineCrash1 injury

WHILE PARKING MY VEHICLE AND SLOWING DOWN TO ENTER A PARKING SPACE, I EASED OFF THE BRAKE TO PULL INTO THE SPACE WHEN I HEARD THE ENGINE REV LOUDLY AND THEN THE CAR ACCELERATED AND CONTINUED TO ACCELERATE DESPITE ATTEMPTS TO PUMP THE BRAKES, RELEASE THE BRAKES WITHOUT TOUCHING ANY PEDAL AND ALSO TRYING TO PUT THE TRANSMISSION INTO PARK. THE VEHICLE WOULD NOT STOP AT ALL. I WAS AFRAID FOR MY LIFE AND TRIED EVERYTHING TO AVOID OTHER VEHICLES AND PEDESTRIANS AS THE CAR ACCELERATED GREATLY. I STEERED THE CAR TO TRY AND AVOID A SLIGHT EMBANKMENT AND CURVE BUT WITH THE RAPID SPEED OF THE CAR, IT BECAME HARD TO MANEUVER THE CAR. THE VEHICLE JUMPED THE CURB STRIKING A TREE AND THEN A CONCRETE POST. THE CAR CAME TO REST ON ITS SIDE AFTER IMPACT. THE CAR WAS A TOTAL LOSS.

NHTSA ODI 11154115

Working with the data? Download all 179 complaints as CSV · fetched from NHTSA July 20, 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 2016 Toyota Prius Phev verdict →