2012 TOYOTA PRIUS Complaints

Small internal brake fluid leak inside the break booster assembly with master cilinder. Code c1391

While on the freeway, I was braking due to traffic and the car started shaking and the ABS light, "BRAKE" light and traction light all came on and remained on. The brake system did not operate properly, which nearly caused a collision.

The ABS system has malfunctioned. It shows "ABS", "Brake" and "Hillside assistance" lights on the dashboard. Have to push the brake pedal till the end for applying the brakes. This is causing a safety issue. Toyota knew about these brake issues as they have a Support program to replace these faulty parts with another part. The Support program is 20TE07 which is expired. Instead of considering this as a support program, they should be considering this as a recall. This is a safety issue as the ABS stops working at anytime.

My 2012 Toyota Prius V went out and had no control crashing into the curb on the passenger side. Scraping the side of my car. My ABS break system went out on my car going 40 miles per hour at 5:30 on a major street in Los Angeles called Wilshire Blvd. I almost died if I had not crashed into the curb I would have been hurt and hurt others Toyota issues a wait and see “courtesy program of a certain window to fix the break booster system and I ran out 1 month ago. My car is at Toyota Culver City and they are refusing to fix the break system due to the time limit. I was not notified of break system faulty system. My number is [XXX] if you would like to know INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

I was driving on freeway when my vehicle shut off and wouldnt start again. It almost caused an accident thankfully not. I paid to have car taken tothe repair shop Viva Toyota in Las Cruces NM and they inspected it and gave me a quote on repair as well what was causing the problem. There was a saftey recall for the PCU and i believe the inverter is causing the failure. please help me to get this figured out.

I was driving on highway & the vehicle stopped accelerating as I was pressing the gas. I put my hazards on & got to the side of the road. Then the eps light came on & the dash stopped showing the mph. The ac stopped blowing cold air & the windows were working slow. I turned car off then back on a couple of times then more lights came on. No lights were on prior to this & I haven’t had any problems w the vehicle before this. I just got this car & I feel like it has something to do with a recall but no one wants to take responsibility for the issue.

The contact owns a 2012 Toyota Prius V. The contact stated while driving approximately 65 MPH, the vehicle stalled. The contact stated that the power steering and power brakes failed to operate as needed. The contact stated that the check hybrid system and check battery warning lights were illuminated. The contact pulled off the roadway safely but was unable to restart the vehicle. The contact had the vehicle towed to an independent mechanic, who diagnosed the vehicle and determined that the inverter needed to be replaced. The vehicle had not been repaired. The contact researched online and related the failure to NHTSA Campaign Number: 18V684000 (Hybrid Propulsion System). The manufacturer had not been informed of the failure. The failure mileage was approximately 247,000.

Master cylinder failure that Toyota is aware of and should RECALL!!! I lost braking with my 10 year old son in the car and could have DIED!!!! Car has 62,000 miles on it! Ridiculous. Over 4,000$ to repair I’m being told. This is a significant Safety issue and you should make Toyota recall it!

Driving approx 35 MPH. Traction, Brake, ABS lights all illuminated. Went to brake and brakes went almost to floor with little to no braking power. Car felt out of control and unreactive. Slowed down, pumped brakes (brakes worked but not normal) and pulled over. It was extremely scary and happened out of the blue with no warning, I thought I was going to crash as car felt "slippery" and unresponsive/no braking. If there was a red light or someone stopped in front of me, I would have crashed. Tested and found code of C1391 ABS Anti-lock Brake System Abnormal Leak of ACC PRESS. Researched and found customer bulletin from Toyota POL18-03 and Customer Support Program ZJB. Safety at risk - near accident, could have been a huge accident, no warning and no brakes. This should be a recall! No warning lights prior to failure, lit at time of failure. I was completely unaware of the potential brake failures. Toyota should issue a recall or cover repair. I have been tossed back and forth between corporate & local dealer. Customer coverage expired June 29, 2022 for my car (10 yrs after 1st use). The incident occurred barely one month later on August 16, 2022. It is under 150,000 miles. Toyota refusing to assist or take responsibility for repair coverage. I have been given the runaround by Toyota and attempting to get a call from a case manager is near fruitless. One case manager left me a voicemail indicating that they cannot help me until I take the car to a local dealership to diagnose. So I did. Forced to Toyota, we carefully drove on side streets to the dealership only to be charged $130 for diagnosis & attempt to "upsell" extra services. Vehicle inspected by Toyota. C1391 replace brake booster assembly master cylinder and brake pump almost $3,000. We drove home white-knuckled. After many more phone calls and unable to speak to a case manager, I rec'd a voicemail indicating they will not cover due to expired June 29, 2022. Same issue happening w/other models - pls recall.

While commuting home by Prius has the traction control, ABS, brake light, and brake system indicator dash lights activate. I was able to make it to an autoparts store and the code C1391 was displayed. Researching this code points me to a safety issue that Toyota is aware of and their remedy ended in 2021. Toyota should warranty this known issue, especially for those people who were never notified of the failure of the brake accumulator and brake booster. I now am afraid to drive my vehicle due to potential failure of the brake system and the costs of the repairs are really expensive.