2014 Toyota Prius brakes problems

Related recalls

No recalls on file.

What owners say

1. Filed Oct 5, 2026TXBrakes

   Facing brake booster/accumulator leak at ~105,000 miles diagnosed and confirmed by a mechanic at an independent service center. Problem is characterized by a hissing and chirping sound from the brakes. No warning lights appear on the dash, but this is a known problem with the 2014 Prius. Brake system could fail at any time, preventing the car from stopping. Repair of this system requires a >$2,500 payment. Toyota had an extended warranty up to 10 years after the car was…

   NHTSA complaint #11768891 · source
2. Filed Sep 12, 2026CABrakes

   ABS and brake light are on. was on the freeway and when i pressed the brake the wheels got locked and the car made a 360 spin, it almost flipped over

   NHTSA complaint #11763835 · source
3. Filed Sep 4, 2026TXBrakes

   While driving my 2014 Toyota Prius, the BRAKE, ABS, and vehicle stability/traction control warning lights illuminated. There was no crash, injury, or noticeable loss of braking before the warnings appeared, and there were no preceding symptoms. The vehicle was evaluated by Mac Haik Toyota in League City, TX, an authorized Toyota dealer. They diagnosed DTC C1391, “Abnormal Leak of Accumulator,” and determined that the brake booster and brake booster pump/accumulator assembly…

   NHTSA complaint #11762180 · source
4. Filed Aug 3, 2026HIBrakesElectrical SystemOther / Unknown

   I am submitting this complaint regarding a serious safety concern involving the brake actuator/booster assembly on my 2014 Toyota Prius. My vehicle has experienced failure of this critical braking component and has been unable to be properly repaired since November due to difficulty obtaining the correct replacement parts. This involves a major safety system required for proper braking operation. Brake actuator/booster assembly. Diagnostic codes: B1206, B2321, C1252, C1253…

   NHTSA complaint #11754349 · source
5. Filed Jul 17, 2026CABrakes

   My car experienced a failing brake actuator/accumulator. The first sign was the ABS and break lights accompanied by a whoosing sound. The issue causes intermittent system wide break failure and renders the car undriveable. Toyota had an extended warranty for this issue but that offer was closed by the time my car had the failure even though it was still under 150,000 miles. I believe this is a significant safety issue and should rise to the level of a recall by Toyota.

   NHTSA complaint #11751206 · source
6. Filed Jul 14, 2026CABrakes

   Brake actuator had been making noises and it finally stopped working on 7/14/26. Thankfully my car was and stopped and parked. The car has 137k miles on it, one owner and no explanation of what caused this. There were no accidents, abuse, or failure to maintenance.

   NHTSA complaint #11750234 · source
7. Filed Jul 2, 2026CABrakesDriver Assistance & Safety TechOther / Unknown

   The traction control, abs, and emergency brake light came on. We checked and the code produced was C1391. There’s a humming noise every 10 or so seconds when idle. The humming noise is also present when braking. We did some research and this appears to be an issue with Toyota Prius. We called the dealership and were informed that this was not a known issue. Thank you.

   NHTSA complaint #11748069 · source
8. Filed Jun 1, 2026VABrakesDriver Assistance & Safety Tech

   ABS, traction control, brake system, and brake lights turned on while driving. Took the car to the mechanic and pulled the code C1391. It seems from other complaints to NHTSA that it is a common issue and quite dangerous, meaning the brake system is failing.

   NHTSA complaint #11741205 · source
9. Filed May 28, 2026CABrakes

   ABS, brake, and traction warning lights came on. Loss of power brakes/limited manual brake. Extended warranty/customer service outreach did not apply. Car is at 120,000 miles and almost 12 years.

   NHTSA complaint #11740747 · source
10. Filed May 15, 2026CABrakes

    When the brake is applied, the vehicle accelerates for a fraction of a second before slowing down. I have experienced this when the vehicle is moving slowly, such as in a parking lot.

    NHTSA complaint #11738043 · source
11. Filed Apr 15, 2026MDBrakes

    On April 5, 2026, while driving downhill around a corner in my 2014 Toyota Prius, the brake booster and brake booster pump assembly failed without any prior warning. When I pressed the brake pedal the car did not slow down and instead appeared to accelerate due to a complete loss of braking assist. I was unable to stop the vehicle normally and had to rely on gravity and coasting to slow down, creating a serious risk of collision. There were no warning signs prior to the…

    NHTSA complaint #11731351 · source
12. Filed Apr 5, 2026GABrakes

    While driving, three warning lights suddenly appeared on the dashboard . Abs warning, traction light, and break warning light At the same time, the brake pedal became very hard to press, and the vehicle did not slow down as expected. This caused a significant increase in stopping distance, and I nearly rear-ended the vehicle in front of me. The issue appears to involve the braking system and created an immediate safety risk. No prior warning signs were noticed before this…

    NHTSA complaint #11729306 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology