2012 Toyota Prius V: multiple warning lights

Filed Sep 16, 2026 · Brakes · 187,000 miles · FL

The contact owns a 2012 Toyota Prius V. The contact stated that while driving 65 MPH, brake fluid was leaking from the vehicle. While driving over 45 MPH, the brake pedal became firm, requiring the driver to exert extra force while depressing the brake pedal; the brakes failed to respond as intended. Additionally, a burning and toxic odor was present during the failure. Multiple warning lights illuminated on the instrument cluster, including the ABS system, parking brake, brake malfunction, and electronic stability warning lights. In addition, the automotive brake system, brake pump, and pressure warning messages were displayed. The vehicle was taken to a local dealer, where it was diagnosed with a failed brake booster assembly after inspection. The dealer determined that the brake booster assembly needed to be replaced. The contact associated the failure with Customer Support Program: 20TE07. The contact was referred to the federal safety agency Hotline by a lawyer, and the contact had found a class action lawsuit related to the failure. The failure mileage was approximately 187,000.

Filed Aug 23, 2024 · Brakes · VA

About three weeks ago, my daughter told me that several lights were on on her display. I checked and among them were the traction control and 2 other related to the brake system. I looked up possible causes on the Internet and it seemed the brake booster/master cylinder could be a culprit, but then I checked the fluid reservoir and the fluid was low, so I topped it off, drove the car, pumped the brakes a few times and all the lights went off. About a week later the lights were back on. I checked all the lines and saw not visible signs of leaks and decided to take it to a mechanic. I took it to a local mechanic and I was told that the brake master cylinder with brake booster failed and had to be replaced. Afterward the brakes were repaired I went to 2 local Toyota dealerships to check the price of the parts. The first dealership provided the prices without any discussion. At the second dealership, the employee who waited on me, after I provided her the VIN and told her that I need the price of the brake booster/master cylinder,m told me that there was a service notice on the booster/master cylinder because of a high rate of failure and that I would have to check with the service department before she could sell me the part. This is concerning, if Toyota knew/knows that the part has a high rate of failure, why wasn't a recall notice issued?

Filed Jun 18, 2024 · Brakes · GA

The Brake Master Cylinder and Brake Booster pump failed to maintain pressure. I don't have the replaced parts, my mechanic recycled them before I realised I was going to submit this. When the part completely failed, I had the ABS, traction control lights on. I couldn't trust that the car wouldn't have a problem stopped, and the brake pedal also became squishy in responsiveness. My own safety, my kids safety, and the safety of others was at risk and I immediately stopped driving it to get the repair done. The problem was confirmed by a Toyota dealership and this was a recall but since my car is older the recall had expired. I was unaware of this recall until the issue began. It was also confirmed by my personal mechanic to be the failure. The Dashboard lit up the ABS, TCS, Brake, (!) light, VSC, and the sound of the pump changed. Before all the lights came up I had noticed a air leaking sound coming from near the brake pedal at times.

Filed Jan 16, 2023 · Brakes · TX

All the lights on my dash lit up. I took it immediately to Toyota of Dallas . I tried numerous times connecting with Dimatrius service manager. No call back. An inspection was done on the vehicle. He stated it would be a $5000 job and I was out of warranty. Their is too many people having this issue if you search many 2012-2014 people are having this issue in a addition to to a google search search for a letter at Capistrano Toyota.

Filed Jul 24, 2022 · Brakes · CA

Running errands and when I got back to my Toyota prius v many lights were illuminated including my brakes abs tire pressure traction lights were all on. Tool my car to dealer for them to gladly request $5,000 to repair this. Dealership told me "the repairs are going to be a new master cylinder + new brake booster pump + fluids as needed for repairs" . This is a known issue for 2012 to I believe 2014 prius model V. This is a huge safety issue and a manufacture error This should be recalled and covered by Toyota as shouldn't be any fault of my own. On today's world 5k is a crazy amount of money to fix a known issue thay could arise again. Toyota needs to do better to protect their customers. Shame on them.

Filed Nov 3, 2020 · Brakes · 123,674 miles · MS

On 11/3/2020, several warning lights appeared on the dash. After researching the combination of lights and sounds from the brake pedal I determined that the brake actuator is failing. Per my research, continuing to operate the vehicle can result in a loss of braking assistance. Other toyota prius models are covered under extended warranties (reference zjb), but the prius v models, which use the same actuator, are not. An accident/incident has not yet occured, but this seems like a huge case of negligence on toyota.

Filed Jul 27, 2020 · Driver assistance, Electrical · 59,670 miles · CA

[xxx] car does not starts stalling does not lock or unlock does not respond to key fob does not respond power button or start button makes some kind of noise with all lights blinking redacted to protect personally identifiable information pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).

Filed Feb 14, 2020 · Brakes · 122,000 miles · GA

Unlike other 2011-2015 toyota prius vehicles the prius v is not covered under toyota's csp-zjb customer support program. My 2012 prius v has all the indications of this brake booster and pump problem... Multiple lights on the dash (brake, ABS, pcs ..... On; codes c1252 & c1256; and brake boost pump running every 6-8 seconds plus a brake pedal that you can push to the floor in 4-5 seconds. In hard braking I've had to pump the brake pedal to get stopped. It's my wife's car but she will not drive it anymore. Took the car to a toyota dealer who was aware of this problem and started to have it fixed at their expense until he put the VIN # in his computer. His estimate was $2500+ to have the problem fixed after I paid to have the problem diagnosed even though he knew what the problem was. I declined and called toyota customer service which was a waste of time...sorry, your car is out of warranty and your car does not have a problem we will cover. On the net, there are multiple prius v owners with the same problem that started in 2008. Until someone with a bigger stick (the federal safety agency), toyota is saying there isnot a problem with the prius v brakes.

Filed Apr 24, 2019 · Brakes · 118,515 miles · FL

Car experienced greatly diminished braking power on interstate 75 prior to approaching heavy traffic backed up to exit. Many warning lights illuminated on the dash: brake, ABS, etc. Toyota has already issued a warranty extension for this issue for the standard model prius, and I believe this is a safety hazard on the prius v wagon as well.

Filed Feb 6, 2018 · Brakes, Driver assistance · 84,000 miles · LA

On jan. 3, 2018 while moving at a minimum speed (less than 15 MPH) I applied the brakes and several warning lights illuminated (brakes, ABS, traction control) along with a warning sound. This was on a city street, driving in a straight line. I was able to brake to a stop. I then attempted to continue to drive at a very low speed but soon lost all ability to brake the vehicle and I coasted to a stop. I had the vehicle towed to a local toyota dealer. I was told the brake actuator had failed and was charged $3288 plus tax for the repair. I received the car on jan. 9, 2018 from the dealer. On jan. 12, 2018 the car failed once again in the exact same manner. The dealer kept the car until feb. 1, 2018 at which time they returned the car to me at no charge, stating they had changed the same exact part as before. The car has 84,000 miles and I purchased it new. I understand toyota has issued recalls for this issue on other models but not on my vehicle. I have retained my repair invoices but am unable to upload them at this time.