Which parts fail
Components named in complaints (service brakes, ABS, rotors and pads, parking brake).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2014 Toyota Prius v owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2014 Toyota Prius V. The contact stated that the vehicle was previously involved in two car crashes, where the vehicle rear-ended other vehicles due to the brakes failure. The air bags did not deploy. A police report was filed after the second crash, but the information was not available. The contact stated that the other driver sustained unknown injuries during the second crash. The vehicle sustained damages and was repaired. There was no further information provided. Additionally, the contact stated while driving at various speeds and depressing the brake pedal, the brakes made an abnormal sound and the brake pedal was spongy. The contact stated that the vehicle hesitated to respond. The ABS warning light and several unknown warning lights were illuminated. …
The contact owns a 2014 Toyota Prius V. The contact stated that while driving approximately 35 MPH, the brake light, tire pressure, traction control, battery, and other warning lights were illuminated. While attempting to depress the brake pedal, there was more resistance than normal, making it difficult to slow the vehicle. The contact was able to drive the vehicle to the nearest mechanic; however, the vehicle was not diagnosed. The vehicle was then taken to the residence. The vehicle was taken to another certified mechanic, who diagnosed and determined that the brake master cylinder and actuator assemblies had failed. The brake master cylinder and brake actuator assemblies were in the process of being repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 220,000.
The contact owns a 2014 Toyota Prius V. The contact stated that while driving at approximately 35 MPH, the brakes and ABS warning lights illuminated the instrument cluster. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that the brake booster and brake booster pump assemblies needed to be replaced. The contact was informed about the Customer Satisfaction Program: 20TE07 (Service Brakes, Hydraulic); however, the vehicle was no longer covered under the warranty extension. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was 133,838.
2014 Toyota Prius V [redacted] (17:45 CST) Sudden loss of braking ability. Brake pedal goes nearly to the floor. Nearly caused collision. ABS, BRAKE, VSC and Orange Exclamation Point Warning all indicated simultaneously. Brake ABS pump / actuator makes buzzing sound audible in driver seat about every 5 seconds. CSP/TSB coverage apparently expired 75 days ago. Occurred at mileage 152,589. Open case with Toyota # [redacted] Vehicle not yet inspected by dealer. Vehicle is available for inspection upon request.
The contact owns a 2014 Toyota Prius V. The contact stated that while driving at an undisclosed speed, the brake pedal was firm which made it hard to stop the vehicle. No warning light was illuminated. The vehicle was diagnosed by a dealer, and it was determined that there was a leak in the brake booster pump assembly. The vehicle had not been repaired. The manufacturer was made aware of the failure and informed the contact that parts to repair the vehicle was not available. The failure mileage was approximately 142,000.
The contact owns a 2014 Toyota Prius V. The contact stated that while driving at an undisclosed speed, the brake pedal was depressed and traveled to the floorboard. The contact engaged the parking brake to stop the vehicle. The vehicle was able to be restarted. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 100,000.
In 2024, I had my vehicle checked out prior to a road trip because the brakes were making "fart noises," and I was worried about driving it to Albuquerque. The AAA certified dealer I took the car to said everything checked out alright. I never received the letter regarding the brake system issue, so I could not take advantage of the extended warranty repair program. My car was in the 80-90 thousand mile range and had not yet rolled over. Fast forward to 2025, my dashboard lit up all over the place, and I got the brakes checked again. By that time, the fault code was coming up, but the entire ABS system needed to be replaced. I was unable to get any help from TOYOTA despite this being a KNOWN FAULT WITH TOYOTA PRIUS AND TOYOTA PRIUS V FROM THIS TIME PERIOD. They are STILL not doing anything to help their customers. …
While braking on the interstate, this car threw error code C1391: Abnormal Leak of ACC PRESS. This is the brake system accumulator pressure - meaning lost all assistance to braking - it took a long time to slow down and come to a stop. Easily could have caused a serious crash had I been on a hill or coming up on stopped traffic. I did some research and found this is a KNOWN ISSUE with Toyota and SHOULD HAVE BEEN A RECALL! Toyota skirted the issue by offering customers that encountered the problem a CUSTOMER SERVICE PROGRAM where they would pay for a new brake pump and master cylinder. HOWEVER, Toyota put TIME and MILEAGE CONSTRAINTS ON THE PROGRAM, and it just so happened our car had exceeded those limits - so we had to pay full price for the repair of the 2 new brake parts - over $3,000! …
ABS Brake pump actuator booster failed. It is available for inspection. While driving, I started hearing a hissing sound from my brakes. I tried to slow down and my several diagnostic lights (ABS, traction control, brake, check engine, etc.) flashed on while my brakes failed to work properly. I turned on my hazard lights immediately. I was in the middle of the road with my toddler in the car and I almost rammed into the car in front of me. Luckily I was able to pull into a turn lane and pushed with all my might on the brakes and it finally was able to stop. My brakes failed and I could have hit the cars in front of me and hurt my child, myself and others. It was terrifying. Problem has been confirmed by an independent service center. The warning lamps only appeared WHILE the issue was happening and my brakes failed to work properly.
Car was diagnosed at a Toyota dealership with a brake booster issue reading code 20TE07 after my vehicles brakes suddenly would not work and the car continued to jolt forward. The brakes wouldn't stop the car. According to Toyota, my vehicle is three months outside of the warranty period but under the covered mileage so we are left to repair this defect ourselves. This was a very dangerous situation and could have cost us and our children our lives instead of just the $4800 repair cost. This has happened to both of our Prius's so this is not a rare issue. Toyota needs to have a plan for these parts failing suddenly and they should all be recalled for safety in my opinion. The experience was very scary and we had zero control over the vehicle when the brakes suddenly went out. Where do I join the class action lawsuit?
Brake complaints in other Prius v years
Frequently asked questions
How common are brake problems on the 2014 Toyota Prius v?
NHTSA has 44 complaints about the brakes of the 2014 Toyota Prius v, 54% of the model year's 82 complaints. The component named most often is foundation components › disc › caliper (1 mentions).
Is there a recall for 2014 Toyota Prius v brake problems?
No. NHTSA lists no brakes recall for the 2014 Toyota Prius v, though it has 4 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2014 Toyota Prius v brake problems start?
Half of the complaints with a recorded mileage happened before about 100,000 miles, and 18% before 25,000 miles.
Is it dangerous?
Owners linked 2 crashes, 0 fires and 1 injury to brakes problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.