2015 Toyota Prius C problems

Filed Nov 9, 2026 · Brakes · PR

I am reporting a serious braking system failure involving my 2015 Toyota Prius C with approximately 63,000 miles. While driving on the highway at approximately 65 mph, the vehicle suddenly began sounding a continuous warning alarm. Dashboard warning light illuminated "BRAKE OVERRIDE MALFUNCTION - VISIT YOUR DEALER" The break pedal became extremely hard with almost no movement, making normal braking nearly impossible. I had to move into the emergency lane and rely primarily on the manual parking brake to gradually bring the vehicle to a stop. This created a serious risk of a collision. After stopping, I restarted the vehicle several times, but the alarm, warning light, and extremely hard brake pedal persisted. The vehicle was towed to Toyota Arecibo, an authorized Toyota dealership in Puerto Rico. The Service Manager personally drove the vehicle upon arrival and witnessed the malfunction, including the hard brake pedal and continuous alarm. The dealership diagnosed trouble codes C1252 and C1253 and provided a repair estimate of $2,974. Both codes are identified in Toyota Customer Support Program 24TE01, addressing certain brake booster and pump failures in 2015-1017 Prius C vehicles. Toyota of Puerto Rico denied the vehicle exceeding the warranty time limit, despite its low milage. I am requesting the federal safety agency investigate this serious safety concern, as the vehicle experienced a sudden loss of normal braking assistance at highway speed. The vehicle remains at the dealership awaiting repair authorization.

Filed Jul 4, 2026 · Electrical, Engine · CA

While driving the hybrid battery light turned on. The car then began to reduce its speed and I had to pull over. I restarted the car and on one of the fuses to the computer to restart it. I began to drive the car back home and it did it again. I recently had a hybrid battery replaced in the vehicle. I was on the freeway both times and this caused me a lot of anxiety. There were two individuals in the vehicle, which both were at risk of being injured if there was a collision. We need it to pull over within less than 30 seconds. They appeared in the morning and a year prior. A year previously I replaced the battery. There was an odd buzzing sound in the back of the driver seat were the vent was.

Filed Jul 11, 2025 · Electrical · WA

I purchased my 2015 Prius C in July of 2016. Since then I have consistently had issues with the lock actuator going out on various doors. As follows: 3/12/18 - Driverside 6/13/18 - Passenger Front 8/3/20 - Driverside 8/5/22 - Rear Driverside 12/16/22 - Passenger Front 3/14/23 - Driverside and now in July of 2025 the Driverside actuator is failing, AGAIN. The previous times were covered by my warranty, but that ended in 2023. My car is also kept in a garage. The dealership attempted to blame this issue on the elements, but come on...if that was the case, this would be happening to all sorts of various cars, and it's not. This is an issue for a variety of reasons, one being I am unable to access getting into my vehicle with the door lock that is not working. I currently have to go to my passenger side and crawl over to unlock my driverside door. If I needed to get into my car quickly, I would be out of luck. This is RIDICULOUS as this is the SEVENTH time a lock has gone out - making it about every year and a half that a lock needs to be replaced - and the 4th time for my driverside. How is this not a recall issue???

Filed Apr 9, 2024 · Brakes · WA

Unknown brake issues

Filed Oct 22, 2022 · Airbags, Seats · TN · crash · 1 injury

Prius was rear-ended at highway speeds, forcing it into the vehicle ahead of it. Airbags did not deploy, & driver's seat failed to stay locked, moving forward then rearward during crash.

Filed Jan 30, 2021 · Airbags · 84,000 miles · NE · crash

Our vehicle was struck in the side this week, and the air bags did not deploy. We were on a residential street traveling around 30mph.

Filed Sep 17, 2019 · Wheels · OR

My vehicles did not indicate that the tire pressure was low and it should tell me since it is certified used. There was no light indicator or anything and 2 of my tires were low. As a new car owner I had no idea and if it hadn't been for my partner I would have not known. This poses as a safety hazard and if the dealership knowingly did not check for this problem then that is negligent knowing this was a problem for this year make and model. It was stationary however I commute evey day.

Filed Jul 18, 2019 · Electrical, Lights · 69,000 miles · GA

My vehicle shut down on me while driving. All lights came up on the dashboard. Toyota dealership says the wire harness needs to be replaced for 4600 dollars. Couple days prior to vehicle shutting down, headlights began shorting.

Filed Oct 23, 2018 · Brakes · 1,000 miles · CA

This has been happening since about a month after I bought the car but the brakes have been making an odd noise. It does not matter how fast or slow I am going but it makes that noise and it makes the brakes slip and not come to a full stop fast enough. I have gone to toyota 4-5 times just for this reason and all they can say is that everything is fine. It can't be fine if the car is slipping and not stopping when it should! Mind you, I live in california and there is almost never rain so it is not due to wet roads.

Filed Sep 10, 2018 · 98,000 miles · NE

I left it parked in meter 201301 zone 115, at 2:07 pm reported it stolen to 911, officer police mr. Scott came out,