2015 Toyota Prius owner complaints

The ABS failed while driving on the highway. There was no accident, but it was substantially harder to brake when needed.

The vehicle has 95k miles on it and both brake actuator assembly and booster pump have gone bad. This is a defective issue, I called toyota and was told too bad since the program that fixed this ended 02/25. The car met the mileage requirement, but being 10 months out of the date gives toyota the right to wash their hands on a defective part. The part is over $1500 just in parts to replace! This is wrong on their part. Not one option offered.

This vehicle has 95k miles, now the vehicle has a brake problem which can cause deadly problems. The parts that have gone bad on this car are defective parts that toyota knows about. The warranty they extended for this ended in 02/2015. They had 150k miles or 10 years limit on that warranty. We are well under the mileage and 10 months over according to toyota. Can’t believe they will dismiss something this delicate and dangerous. The parts are not cheap and it’s something we can’t afford to fix right now. I can’t believe Toyota will just wash their hands on something this important in a vehicle. This is a know defective part! They should have some sort of responsibility and resolution. I called and was told they cant do anything. Even a part offer so we can fix nothing. Please review this

On the morning of December 11th, 2024, the brake system warning light (ABS, yellow) illuminated on the dashboard along with the red BRAKE indicator and the yellow Vehicle Stability Control (VSC) system light. I consulted a mechanic who performed a computer diagnostic and informed me that the ABS module booster had failed. He said that will order the part to change it but meanwhile he advised me to drive more cautiously and maintain a greater distance from the vehicle ahead, allowing extra space for my car to stop due to the increased braking distance caused by the failed ABS module booster. Later that day, at approximately 5:30 PM, I was driving home in heavy traffic, with speeds not exceeding 40 miles per hour. The vehicle in front of me began to decelerate abruptly. When I applied firm p

The brake accumulator went out thanksgiving day on my way home nearly causing an accident. I also missed dinner due to the issue creating a clearly unsafe driving condition where I was barely able to use my brakes. This is a known issue by Toyota, whom extended the warranty to 10 years. Of course, my warranty was 3 days past the 10 years even though it is under the mileage requirement. This should have been a recall, as it is a known and reported problem. I am now out 3300$ for the repair just to get my car in an operable condition. There were no warnings, the abs light as well as the traction alert went off and I lost the ability to properly brake in an instant. There was no warning, nor was I notified about this part.

There is a known brake booster issue with the Toyota Prius. They extended the coverage to 150,000 miles. My car is at 127,000 miles and they said the repair isn't under warranty and will cost over $3,000 to fix. There was no pre-warning lights or information received about this repair notice. I only noticed this when the lights came on and our ABS lights went out. When I took it in they said I missed the deadline by 5 days, that I would have had to let them know by 11/20/2024. Which is insane for such a huge issue when I am well under the mileage coverage.

I have noticed that the brakes sometimes do not appear to work properly, and once I was involved in an accident due to the poor braking performance. Once I quickly transitioned from throttle to full braking and the car didn't seem like it was applying full braking. It didn't seem to decelerate like it should have. I rear ended a vehicle because of the braking performance. Another time I had to slam on the brakes coming off an interstate and the brakes also didn't seem powerful enough. It's as if the brakes don't fully "catch" until the last minute. Both times weather conditions were dry.

Was driving on the freeway at about 45 MPH when I car abruptly changed lanes in front of me. I immediately slammed on the breaks but the car did not come to a complete stop. It kept going forwards and was not decelerating fast enough. To avoid hitting the car in front of me I had to swerve to the right, which immediately caused the ESC to turn off and my car kept swerving.

Hi, I am reporting a brake system failure on my 2015 Toyota Prius. In July 2025, the ABS and brake warning lights suddenly appeared, and a Toyota service center confirmed it is the known Prius brake system defect. The repair estimate ranges from $4,502 to $27,814, but Toyota declined coverage because the vehicle is just past the 10-year warranty limit. This issue poses a safety risk due to reduced braking performance. 1) The brake system / ABS actuator assembly malfunctioned. and yes, the component is still installed in the vehicle and available for inspection upon request. 2)The ABS is no longer functioning properly, significantly increases the risk of losing control or extended stopping distance, especially in wet or emergency braking conditions. I rely on this car for daily transportat

The Brake Booster system failed two weeks after the Toyota Customer Confidence Program for that condition ended and they will not reimburse me for a $3000 repair. I knew there was a problem because all the dash lights came on at once while we were driving on a highway. I had it towed away to be repaired and it was found that the brake booster system was failing. Had I ignored it or not acted as immediately as I did the brakes could have failed while the car was in use and hurt or killed me or someone else. They should issue a recall for this condition and fix it for Prius models that still need it and they should reimburse me.

The contact owns a 2015 Toyota Prius. The contact stated that while driving approximately 15-20 MPH, the ABS, brakes, and the traction control warning lights, and the malfunction indicator light were illuminated. Additionally, the vehicle hesitated to respond while depressing the brake pedal, causing the braking distance to be extended. The vehicle was taken to the dealer, where it was diagnosed with an abnormal leak in the accumulator and a leak in the brake booster pump. The dealer determined that the brake master cylinder and the brake booster pump needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 94,100.

The ABS, BREAK, and Traction Control, suddenly turned on when I was traveling on the freeway in mild traffic. I was traveling at about 60-65 mph. I attempted to use the breaks and could feel a substantial difference in how much and how hard I had to push in order to stop. The problem has not been confirmed by a dealer or service center. The vehicle was inspected by my brother in law who works on cars frequently. There were no warning symptoms prior to the problem. The problem first occurred on Saturday November 1st at about 12:30. According to my brother in law, it was the break pump that failed; you can hear air escaping when you push on the break pedal.

While driving, left side of instrument panel went dark. No speed indication and cruise control tripped off. Started car next day and instrument panel was normal. While sitting in driveway with engine running, engine stopped as normal for the hybrid prius, when the engine turned off, the left side of the instrument panel again went dark. Dimmer switch at full bright and nothing blocking mirror for combination panel (instrument cluster).

I bought this vehicle on July 3, 2015. When I took it in for an oil change in Dec. 2015, I was informed that there was a mice infestation and that the electrical wires and other systems were damaged, resulting in about $2,800 in repairs due to the mice chewing the wiring. I just took this vehicle back in on 29 Nov. 2021 because some of the systems weren't working properly, and they confirmed that a mouse has again chewed up the electrical system, again costing about $5,000 in repairs. I've just been informed by my exterminator that Toyota uses a wiring harness coated with a soybean based coating which is causing reports of mice damage in a lot of Toyota vehicles. We have 2 other vehicles which are not Toyota vehicles and have never had a single problem with mice chewing the wiring harne

Window buttons on drivers side master power window switch failed. Felt warm on door. There have been recalls of other models of Toyota cars including Prius C.

I was on the interstate going 70 miles an hour in the left lane. I wanted to change to the right lane, put on my turn signal, checked both mirrors, and started to pull over when a horn blew, I did not see a car in the right lane as the prius has a terrible blind spot. This has happened a few times. Not good I missed hitting the vehicle be mere inches.

The driver cannot see any part of the front of the car. In most cars, the driver can see enough of the hood and front fenders to judge how close the car is other objects (cars, walls, pedestrians, etc.), but in the prius, even though I am over 6 feet tall, I cannot see any part of the hood or front fenders. With that lack of perspective, I scraped the left fender against a parking lot wall. But that same lack of perspective could result in hitting a pedestrian.

This is an update to complaint number: 10809942. === I forgot to include this: *** besides the rolling backward problem I had, if one has a get-into-gear-and-go emergency, it is very likely that the car will not get into gear, you will not realize that, and when you step on the accelerator to go, the car will not move. Then you have to realize why it did not go and shift again. In case of an emergency, this delay may be critical.

The transmission gear shift is dangerously designed. The shifter will move into a gear positions even if it transmission does not actually shift into the gear. Whenever the handle is released, it springs back to the central position, whether the transmission is in gear or not, so the driver does not know if the transmissions is actually in gear or not--or if in gear, which gear. The driver is expected to look at the instrument panel so see what gear is highlighted in the display. I rented a prius for a week and numerous times, I thought I had shifted into drive (or reverse), but when I pressed on the accelerator, nothing happened because it had not gone into the selected gear, and I did not know that because the shift lever always springs back to center position, whether the transmi

I was driving down the road and the tire blew out causing me to hit the center divider on the 101 on the driver side front tire which caused the cars ass end to also get scuffed up as will