2012 TOYOTA PRIUS Complaints

After starting the car on 7/30/24, the Brake System Warning Light, ABS,Slip Indicator, and Master Warning Light all came on indicating an issue with the brake system. We were able to get it to the local dealership and when they ran diagnostics on it, it returned a code C1391, which confirmed the issue. This was addressed in 2020 by Toyota, but only for cars 10 years or 150,000 miles old. Our car is a 2022 with 105,000 miles on it, but we are outside of the year limit (car was 8 years old when the Customer Service Program was released).

ABS brake system doesn't work with three warning lights on and warning beeping sound. I'v learned that Brake actuator failed. Current mileage is only 67300.

ABS Break Lights turned ON and it need replacement. Toyota have faulty ABS this is my 3rd Prius that have the same Issue.

I started noticing a strange noise when I applied the brakes. It was an electronic type of almost grinding sound. When I looked into it, it was determined that the brake actuator was failing despite no warning lights coming on. This started around the beginning of March. Finally in the beginning of July the noise stopped and a lot of dashboard lights came on including ABS, BRAKE, and others. This is when the brake actuator actually failed, and the battery no longer was charged when the brakes were applied. This is extremely concerning that a major brake component can fail like this and affect the safety of the vehicle. I am attaching a photo of the dash that shows the lights that came on when this failure occurred.

The brake booster noise, brake problem, brake booster pump internal mail function

I contacted Toyota about the peeling paint on my car. The Toyota representative told me to file a complaint with your agency. The paint is peeling on the roof of my car. There are many similar cars with the same problem. Toyota is unresponsive.

On 07-June-2024 @14:47 my 2012 Toyota Prius suffered a catastrophic failure. I was attempting to back my 2012 Toyota Prius vehicle a few meters back into my driveway while turning slightly. This was a very slow speed backup. Suddenly, the rear passenger side wheel collapsed inward, and rendered the vehicle unmovable. A video of the incident is attached for viewing The vehicle has low mileage approximately 58,000 miles. The vehicle is in excellent condition and the service records provide evidence of proper maintenance, often at Toyota dealership. This vehicle was originally from Cape Cod Massachusetts and perhaps suffered adverse effects from ocean salt air? Although the rest of the vehicle does not show any significant rusting. . I am impressed by the engineering of the Prius hybrid technology, but this point of failure seems to be an engineering weakness.

2012 Toyota Prius brake actuator failure . While driving my Toyota Prius the braking system failed, this was on a large road and so posed a major danger to not only me, but the passengers in the vehicle and the vehicles around us. Thankfully nobody was hurt. After having the vehicle inspected by a Toyota dealership the problem was found to be the “Actuator/accumulator” and after speaking with the dealership it has come to be my understanding that this is a common and unavoidable problem with Toyota Prius models. There were no lights or warnings on in the vehicle until after the brakes gave out. I cannot understand why this has not been recalled when it is a manufacturing issue on Toyotas end that poses a significant danger on the roads, and am wondering what the reimbursement policy for this is as it came out to be quite expensive.

In 2019, I took my Prius in for service. I reported that when I suddenly brake, the pedal feels spongy as if the brakes will not stop vehicle and lights on dash lit up. Toyota did diagnostic, no action taken by service department at Toyota dealership. I have service history documentation. On June 29, 2024 we had routine maintenance and the service department of the Toyota dealership recommended brake fluid serviced. On July 1, 2024, I was driving my child home from his summer camp and when I tried to stop the brake did not work. I started pumping the brakes several times until the car slowed and came to a stop. The lights on the dash lit up again. The brake failure put my son and I in danger. We had the car towed to the service department of the Toyota dealership. The service department sent the following information after their diagnostic. "The warning lights re-appeared after we drove it a few times. Now regarding the brake fluid service we performed, it is not related to those warning lights. Your accumulator is internally failing. The accumulator is a computer that distributes and controls the amount of pressure going into the brake system, and the computer was not untouched. Unfortunately it was bad timing and the computer started to internally fail. These vehicle's are known to have bad brake actuators, and Toyota created a type of recall for it to get replaced under no charge. Unfortunately they only cover up to 10 years and your warranty expired last year." My husband and I did not receive information regarding this recall. We did an online search to find out more about this recall and found several pages and posts of people describing the same situation.

While my daughter was driving brake pedal faded and rear brakes locked up causing her to lose initial control of car . Steering felt tight . Many warning lights , check hybrid system , brake lights , steering warning lights , along with abs lights came on . Took car to Toyota dealer to diagnose it needs brake booster and master cylinder module . Service consultant said known issue with TSB but it had expired . Many , many complaints of this same incident of Toyota and Prius forums .