2012 Toyota Prius acceleration problems

Filed Jul 6, 2026 · Acceleration, Engine · IL

Unknown. There were a multitude of codes that appeared on the diagnostics causing problems with engine. The temperature, brake, tire sensor lights are all on. The cruise control is not working. White smoke emitting from tail pipe and engine. Main engine coolant leaking. Car overheating rapidly.

Filed Aug 12, 2021 · Acceleration · FL

The brake, abs, and stability control light come on and the brakes require more pressure to work . getting a code C1391 Abnormal Leak in the Accumulator. but I was never informed of this recall and there are no open recalls associated with my car

Filed Feb 18, 2019 · Acceleration, Body · 40,063 miles · CA · crash · 5 injuries

I was coming up the freeway off ramp and my car just turned off I had no braking I hit six other cars rolled over and was severly imjured in the hospital forr three days

Filed Dec 20, 2018 · Acceleration · 33,000 miles · VA

In early october I received a recall notice from toyota for a "failsafe driving mode" hybrid system fault that could cause the vehicle to "stall" increasing the possibility of vehicle crash during critical driving conditions. It stated I would be notified when the fix was available. 2 1/2 months later, I've yet to hear from toyota and my dealership states they have not received remedy parts or procedures from toyota. All they could do was give me a phone number at toyota corporate. I called the number and the person had no further information on when a fix for the problem would be available. She stated the original notice stated a time frame of 2-3 months; in fact, it does not contain any time period indication. It is inappropriate for fix for something of this potential magnitude to take so long. I'm concerned that toyota, as they have done with other recall issues, is merely delaying to avoid costs of implementing the fix and endangering all owners further than they already have. The lady stated I could contact the dealership about providing a rental vehicle during the period, something the dealership has denied they will do. I bought my vehicle trusting toyota would stand behind the vehicle and they are failing to do so.

Filed Oct 1, 2015 · Acceleration, Brakes · 20,000 miles · CA · crash · 2 injuries

Tl* the contact owns a 2012 toyota prius. The contact stated that the vehicle independently accelerated while pulling into a parking space with the brake pedal applied. The contact applied extreme force and the vehicle continued to unintendedly accelerate at a high rate of speed. The vehicle turned right and crashed into a trash dumpster. The driver and front passenger sustained whiplash. Medical attention was not required. A police report was filed. The vehicle was towed to the dealer's collision center who repaired the body damages and was to send a third party to investigate the cause of the failure. The contact was waiting on the dealer and the manufacturer to determine the remedy to repair the vehicle. The approximate failure mileage was 20,000.

Filed Jun 18, 2014 · Acceleration, Transmission · 22,000 miles · VA

Tl* the contact owns a 2012 toyota prius. The contact stated that while traveling 45 MPH, the vehicle accelerated without warning. The contact stated that the vehicle jerked and made a loud noise. The vehicle resumed to its normal acceleration after the brakes were applied. The failure occurred on three occasions. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure and current mileage was 22,000. The consumer stated when she applied the brake lightly, the engine revved up and the vehicle did not slow down. The consumer has since sold the vehicle. Updated 09/23/14

Filed Apr 8, 2014 · Acceleration · CA · crash

2012 toyota prius. Consumer writes in regards to vehicle sudden acceleration. *smd the consumer stated as he entered a parking lot and turned to go down an aisle, he hit the curb too closely and the vehicle accelerated at an incredible speed. He put his foot on the brake and it went to the floor; he tried to turn the power off, but the vehicle did not stop. At the rate the vehicle accelerated, he passed by 2 parking aisles and was stopped by hitting a parked vehicle, which the force of his vehicle was pushed under a fence and onto a railroad track. The vehicle was badly damaged because the emergency brake was on and the impact destroyed the transmission. The dealership reviewed the computer data and concluded the vehicle did not accelerate on its own. They implied his foot was on the accelerator and not the brake.

Filed Sep 6, 2013 · Acceleration, Airbags · 30,000 miles · TX · crash

While traveling in a rain storm at 17mph, I tried to engage the brakes to prevent from crashing into an 18 wheeler and the brakes did not work. I repeatedly tried to stop the car and the car was accelerating even thought I was applying the brakes not the gas. The car would not shut down, go into park or neutral. I did crash into the 18 wheeler because the engine was accelerating and I wanted to stop.when I crashed the airbags did not deploy. Even after impact the car was still accelerating like it was trying to push the 18 wheeler. Eventually the car powered down after repeatedly pushing every button possible. I had the car towed to a toyota dealership. I phoned your hotline but the VIN number I gave had a number that was wrong my prior confirmation number is 10542285. Toyota is aware and I am waiting for them to call me back.

Filed Sep 6, 2013 · Acceleration · 30,500 miles · TX · crash

Tl* the contact owns a 2012 toyota prius. The contact stated that while driving 17 MPH, the vehicle suddenly accelerated and the contact crashed into another vehicle. The contact stated that the brakes would not respond. The contact was not injured and a police report was not filed. The contact additionally stated that all of the lights illuminated on the dash board as the vehicle abnormally accelerated. The vehicle was taken to the dealer but was neither diagnosed nor repaired. The failure mileage was 30,500.

Filed Apr 6, 2013 · Acceleration · 2,374 miles · NV · crash

Parking car in handicapped spot - speed approximately 2 MPH - gas engine cut in and the car accelerated at a very high speed. It went over space stop (concrete) - crossed the sidewalk onto grass and I had both feet on the brake and stopped the car approx. 3 feet from a wall of a building and shut off the engine. The handicapped sign scraped the whole right side of my car and there are several dents. The sign was fine.