Toyota Prius Complaints (2015)

171 consumer complaints on file.

#11662928May 24, 2025
SERVICE BRAKES
I own a 2015 Toyota prius, purchased new and put in service December 4th, 2014. Car is well maintained. On May 10th, 2025 The Brake booster pump and assembly failed. Has internal leak. I had the dealer confirm this. Lights on the dash, computer code c1391 ( abnormal leak in accumulator, Rec replacement of brake booster and pump) and brake booster pump is pumping every 3 seconds from internal leak. Brakes are now at 50%. Soft. The Pads and shoes are perfectly fine. It’s the brake booster pump assembly. Toyota issued instead of a recall, which would have been the right thing to due considering its long history of these over multiple years failing, just a customer service letter. 10 years or 150,000 miles, which ever comes first. Mine failed at 10 1/2 years. Now I am stuck with a $3,000 bill which I can not afford, to replace the Brake booster pump and assembly. Toyota completely knows of the issue and side stepped having to issue a recall on this very well know problem.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11660804May 13, 2025
SERVICE BRAKES
The ABS brake light on. The problem is related to booster pump assembly.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11657372April 28, 2025
SERVICE BRAKES
Left our house and as we were driving out of our neighborhood the ABS and Brake lights came on. We looked it up in our book and couldn't find anything concrete to go on. Drove straight to Auto Zone and their test came back most likely Brake booster or master cylinder. While looking it up, we read several stories people had posted saying this was a defect with 2012 - 2015 Toyota Prius' and to write to you and tell of the incident. I put my Vin # in and it doesn't show any recalls about this. Any feedback would be helpful. Thank you!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11656947April 26, 2025
SERVICE BRAKES
Car feels like it lunges forward while braking over bumps. I have learned this is a known manufacture defect with the Brake Booster and Brake Actuator which Toyota is refusing to replace outside of 10 years from manufacture date. This is a critical safety item and failure can result in loss of brake power. Most owners do not know this part even exists until failure has happened already.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11653516April 8, 2025
SERVICE BRAKES
Bad break booster and was told I can’t get it repaired under the replacement program because it has to many miles! However I purchased my 2015 Prius used that had over 100 K already never received no notice from manufacturer or the dealer I bought the car from this is not fair and if Toyota is putting in faulty brake boosters, they should be replaced for free regardless of the mileage because I didn’t break the booster It’s the brake booster that was originally installed by the manufacturer! Someone needs to do something, especially if it’s not the car owner‘s fault It’s the manufacturer fault for installing faulty parts! I need my car as a single mother I can’t afford $2000 for repairs and labor
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11649991March 23, 2025
SERVICE BRAKES
The ABS and traction light appeared on the dash while driving on the freeway. I attempted to brake, while merging to exit but the car brake system did not respond. Luckily there were no cars close to us. Figured it could be a brake fluid problem so I added more fluid and it went away for a bit. It’s come back again and my car feels unsafe to drive. The brake pedal feels stiff or sometimes mushy like dough. I am waiting to get a diagnosis on my car but from what I’ve read and what other prius owners are reporting, it appears to be the “break actuator and break booster pump” that is failing to work properly. Wondering if any other Prius owners have filed a complaint.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11649617March 20, 2025
SERVICE BRAKES
I was driving down the road when I noticed my brakes were not working. I had to push a lot harder on the pedal to slow the car down luckily, I did not crash into the car in front of me. I pulled over to see numerous lights on the dash such as traction, abs, and brakes. I had the car towed to Toyota where they quoted me almost $3000 to fix the brake accumulator and booster assembly. They said my car is outside the extended warranty of this problem. My car is a 2015 Prius with 154k miles. I found online that these things fail commonly on this generation of Prius. It's horrible for this company to charge us basically the cost of the car to fix the brakes.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11646155March 4, 2025
SERVICE BRAKES
"ABS ACTUATOR AND BRAKE PUMP - Remove & Replace - Hydraulic Booster Assembly" -High Voltage Auto LLC Bakersfield, CA Actually scared for my life when driving now. Brakes are now limp, constant sound of actuator cycling, code is C1391 Problem is reproduced by dealer and independent service. Yes parts were inspect by manufacture. There are multiple warning lamps, actuator cycling is constant piror to lamps finally indicating issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11643794February 19, 2025
SERVICE BRAKES
Brake Booster and Master Cylinder failed. Traction Control and ABS lights came on while driving. Upon inspection there is an issue with the brake booster and master cylinder. This is an issue that Toyota is aware of and were repairing under a customer service campaign. They are aware that these parts malfunction and instead of recalling them, they set expiration dates for free replacement. The car must be experiencing an issue and throw the correct code within the campaign window to be eligible for complimentary repair. The brakes failing in this way could cause great harm to me as a driver and others on the road making it imperative that I pay thousands in repair cause to ensure everyone's safety, though that is toyota's job.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11642400February 13, 2025
EXTERIOR LIGHTING, ELECTRICAL SYSTEM
The headlight bulbs keep going out. I have replaced the bulbs at least 2-3 times a year for the past few years. I have asked dealers about this and they tell me there is no recall or tsb. This is a hazard to night driving because of decreased illumination, especially in dark roads with not enough lighting. Please recall/fix this issue!!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11642307February 12, 2025
SERVICE BRAKES
Brake Booster failed on 2/11/2025 Its a known safety issue with Prius 2015 models. I took car to Toyota for repair. They told me it needs to be replaced but out of warranty as this cr was produced in Oct 2014 This is a major safety item. I took it in for 100000 miles check and it was not replaced then and now they are saying it is too late.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11637716January 22, 2025
UNKNOWN OR OTHER
My small battery died and it is located on passenger side, inside, underneath tail light. There us no key entry. One must crawl to back if car and dismantle many pieces to access release. I had heavy 5 gallon jugs of water in back. There is no trunk release and no key entry. The only way to jump car is at fuse box under hood. Car needs a button inside, ideally up front.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11632903December 28, 2024
STRUCTURE:BODY
The pearl white paint on my 2015 Toyota Prius plug in vehicle is starting to chip and delaminate. This poses a safetly hazard to the structural rigidity of the body which could rust, break down, and fail unexpectedly. I am requesting to hold Toyota, who has had paint issues with their vehicles in the past, liable and to pay for the cost of a new paint job. Please help!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11630769December 15, 2024
SERVICE BRAKES
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 pressure to the brake pedal to slow down my car, it lost all control. The vehicle began to skid, with the amplitude of the skid increasing progressively. It struck the highway guardrail on the left, changed trajectory, crossed all four lanes to the right uncontrollably, and ultimately collided with the highway guardrail on the right side.
Crash:
Yes
Fire:
No
Injuries:
1
Deaths:
0
#11627464November 26, 2024
SERVICE BRAKES
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11622213October 28, 2024
UNKNOWN OR OTHER
VPC
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11619659October 14, 2024
ENGINE, UNKNOWN OR OTHER, BACK OVER PREVENTION: WARNINGS
I want to sale
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11610589August 24, 2024
SERVICE BRAKES
ABS/ brakes, traction control warning lights came on 5 days ago. Dealer stated DTC 1391 code detected and recommend brake actuator replacement and brake booster assembly. Toyota issued TSB 0024-19 for service.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11607398August 8, 2024
UNKNOWN OR OTHER
The clear coat on the roof of my 2015 Prius began to peel little by little starting around 2021. What started out as small patches has now become large patches on various parts of the roof. The clearcoat is also beginning to peel right below the windows on the passenger side, close to where the door panel and the window meet. It's unsightly and I have not had this happen to any of my other vehicles in the past. I've done nothing different in the handling/washing/parking of the vehicle compared to my previous cars.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11605418July 30, 2024
SERVICE BRAKES
As many others have reported, the Brake Accumulator has failed. The symptoms began at 100,000 miles. When reported to the dealership, was brushed off as not a safety concern. It is, indeed, a major safety concern. My partner had the ABS lights come on and brakes freeze up while driving on a fast and congested highway. Furthermore, getting this repaired is nearly impossible. The only Toyota dealership in town is estimated a $5k price. And since independent shops often cannot perform this repair, there is no comparison possible. They simply push to buy a new vehicle instead of standing by one that should be operating normally. The dealership is Miracle Toyota of North Augusta SC. Consistently does not support the consumers concerns and simply pushes repurchase as the only reasonable avenue. This is a known issue for Toyota that has stranded many of us without the ability to keep this car on the road. Please resolve with reasonable repair options due to faulty design.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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