2015 Toyota Prius v

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.

Reported

Nov 2025

Incident date

Nov 2025

Mileage

Not provided

Outcome flags

None reported

Emergency Brake, Traction and ABS warning came on and stayed on in addition to a five-second interval cycling on of a motor sound under the hood. O'Reilly Auto Parts and then Toyota dealership confirmed the same code that indicated brake booster assembly needs replacing (C1391) **This is a "known issue" but not yet a recall. Toyota did extend the part warranty to 10 years or 150,000 miles - my vehicle has only gone 85,500 and unfortunately is eight months into the 10th year and Toyota is refusing to cover any portion of the repair. I would like to be part of the effort to have this formally declared a recall because I got the quote today to replace the brake booster assembly and it's going to cost half the value of the vehicle! $4000 is the low estimate Bighorn Toyota gave me to do the repair/replacement. Thank you for your help!

Reported

Oct 2025

Incident date

Oct 2025

Mileage

Not provided

Outcome flags

None reported

Brake booster failed. ABS lights on. Brake light on. Traction control light on. Was sitting at stop with foot gently on brake when lights turned on. Attempted to restart car to clear lights, lights would not turn off after normal restart x3. Brake no longer function correctly, and the factory installed ABS are no longer functioning. Braking distance greatly increased, and no longer as safe to operate.

Reported

Aug 2025

Incident date

Aug 2025

Mileage

Not provided

Outcome flags

None reported

While driving my Prius on the highway, the ABS and traction control warning light suddenly came on. The brakes started feeling different right away, and it didn’t feel safe to drive. I took it to a Toyota dealership, and they found that the brake booster and pump had failed. I looked online and saw that many other Prius owners had the same issue, so it doesn’t seem like an isolated case.

Reported

Jul 2025

Incident date

Jul 2025

Mileage

Not provided

Outcome flags

None reported

2015 Toyota Prius ABS warning light came on . Went to car mechanic . Brake Actuator & Pump code leaking. It happen on 7/27/25 under 100,000 miles. Currently Anti Sway and ABS braking disable.

Reported

Jul 2025

Incident date

Jul 2025

Mileage

Not provided

Outcome flags

None reported

I am having a hybrid propulsion system issue due to a part that was recalled according to this ID number for the NHTSA 17V718000 that was posted NOV 14, 2017 and my car does seem to be affected because it is facing the same issues as other cars reported from that batch. I want to make sure that I can have it serviced properly at my dealership

Reported

Jul 2025

Incident date

Jul 2025

Mileage

Not provided

Outcome flags

None reported

Brake light + ABS + traction light came on and the brake became harder to control. I was driving in the rain and briefly lost control. Fortunately, no accident.

Reported

Jul 2025

Incident date

Jul 2025

Mileage

Not provided

Outcome flags

None reported

omponent/System Involved: SERVICE BRAKES, HYDRAULIC ⸻ Make: Toyota Model: Prius Year: 2015 Mileage: 155,470 VIN: [XXX] ⸻ What happened: My 2015 Toyota Prius is experiencing brake failure symptoms related to a known defect addressed in Toyota’s Warranty Enhancement Program ZJB. The vehicle has triggered DTC codes C1256 and C1391, which indicate failure of the brake booster and master cylinder — a problem widely reported by Prius owners. The defect causes decreased brake effectiveness and increased stopping distance. My Prius is just 5,470 miles over Toyota’s 150,000-mile coverage cap, and despite confirming the exact codes, the dealership refused to repair unless Toyota pays first. Toyota Corporate opened Case #[XXX], but has not offered a resolution. This is a safety-critical issue that Toyota acknowledges in internal service bulletins, but they are denying assistance based on a technicality, despite my vehicle having the exact failure their program is designed to address. I am filing this complaint because I believe Toyota is avoiding responsibility for a dangerous manufacturing defect affecting braking performance and safety. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Reported

Jul 2025

Incident date

Jun 2025

Mileage

Not provided

Outcome flags

None reported

Failure of brake pump and brake cylinder assembly system, resulting in reduced braking ability and stiff brake pedal. Per Toyota's diagnostic: trouble code C1391 is present, abnormal leak in accumulator, replaced brake ABS actuator assembly, along with brake master cylinder, and bleed the brake hydraulic system. No warning lamps or safety indicators prior to failure. Upon failure (while on freeway going 50+ MPH) the ABS, Brake, and traction control warning lamps illuminated. The failure resulted in no accident or injury, however it did occur while on the freeway going freeway speeds, and resulted in difficulty in braking, which was dangerous. Took Prius into Toyota dealer for diagnostic and repair, was told that part was known to fail in this model of Prius, and had a manufacturer designated extended warranty for 10 years or 150,000 miles. However, despite prius being under 150,000 miles, it passed ten years since purchase in march 2025, meaning I had to pay in full for the repair ($3,631.96). The car gave no indication of needing the repair until the day of the failure, which was on June 18th 2025. If the vehicle had given some prior indication of brake pump system failure or fault I would have had it repaired prior to the warranty expiration, but it did not, leaving me to pay out of pocket for a failed part that Toyota is at fault for making prone to failure.

Reported

Jun 2025

Incident date

Jun 2025

Mileage

Not provided

Outcome flags

None reported

Brake booster failed while driving down the mountains back from big bear. Nearly wrecked several times, had no idea why my brakes weren't working properly. Go to AutoZone to scam the code, and I got the dreaded ABS failure. Sadly the extended warranty for this known issue from Toyota conveniently expired 2 weeks before the failure. Toyota should be held accountable and pay for my repair, that O did myself. Parts cost me $1800, plus a day off from work I had to take. Atrocious situation, Toyota should be ashamed.

Reported

Jun 2025

Incident date

May 2025

Mileage

Not provided

Outcome flags

None reported

While driving my 2015 Toyota Prius, the brake pedal became extremely stiff and hard to press. I was on the way to the dog park with my dog in the back seat when I had to press down very hard just to slow the car at a traffic light. It felt like I was stepping on a rock. The brakes barely engaged, and I had to use far more force than normal to get the car to stop in time. When I hit the brakes, they finally caught hard and suddenly and my dog went flying off the back seat and landed on the floor. She’s fine physically, but now she’s terrified of getting in the car at all. It was scary for both of us and felt totally unsafe. If I had been going just a little faster or if someone was walking across that intersection, it could’ve ended badly. I later found out this issue is tied to a known defect with the brake booster and accumulator system, specifically related to code C1391. Toyota even acknowledged this problem in a Customer Support Program (CSP ZJB/ZKK), but they refuse to help because my car is slightly over the mileage limit. That doesn’t change the fact that this is a serious, dangerous failure that affects the driver’s ability to stop safely. Toyota should be forced to take responsibility for this failure before someone gets seriously hurt.

Reported

Jun 2025

Incident date

Jun 2025

Mileage

Not provided

Outcome flags

None reported

Toyota Hybrid Brake Problems 2015 Toyota Prius I took to my dealership Jim Ellis Toyota in McDonough GA. I was told that my brake master cylinder & brake booster pumps vehicle has failed. I experienced my brakes locking up, causing the vehicle to unexpectedly lunge forward or failing to engage when the brake pedal is depressed. On [XXX] my ABS, Brake, Traction lights came on out of nowhere. I tried taking it to my dealership in April to Jim Ellis, Toyota of McDonough for the lights, the one lights being on. I took it there around 8 o’clock in the morning and then there was a very rude and disrespectful service person by the name of Victoria who told me that they would not be able to see me and told me that I needed to leave because I didn’t I have an appointment. This is a Dealership that I purchased this car phone in 2018 and I have been taking my car to Jim Ellis Toyota of McDonough since 2018 to get regular oil changes and other maintenance for my car. Such as things my brakes replace my front and the back brakes have my battery please and come several times out of the year to get a oil change because I have part of what they consider a lifetime oil change on my car. Also, I had a Warranty whole time that I have been taking my car to the dealership they never once brought to my attention that there was a known recall for the brakes booster. It wasn’t until I took my car to dealership on Friday 5/30/25 that I was advised that this was a known issue for 2010-2015 Toyota Prius Jim Ellis dealership knew about the problem and failed to make repairs when I spoke with general manager Lorenzo Smith he advised that past the recall timeframe and my warranty has expired. Jim Ellis dealership knew their were known issues and hid the issue I refuse to write the wrong by making the repairs to my vehicle. They’re trying to charge me over $3200 in repairs when I spoke with the general manager, he advised me that they didn’t make the repairs because my vehicle vin number. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Reported

Jun 2025

Incident date

May 2025

Mileage

Not provided

Outcome flags

None reported

brake failure during operation due to bad brake booster pump and accumulator.

Reported

May 2025

Incident date

May 2025

Mileage

Not provided

Outcome flags

None reported

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.

Reported

May 2025

Incident date

May 2025

Mileage

Not provided

Outcome flags

None reported

The ABS brake light on. The problem is related to booster pump assembly.

Reported

May 2025

Incident date

Apr 2024

Mileage

Not provided

Outcome flags

None reported

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!

Reported

Apr 2025

Incident date

Apr 2025

Mileage

Not provided

Outcome flags

None reported

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.

Reported

Apr 2025

Incident date

Apr 2025

Mileage

Not provided

Outcome flags

None reported

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

Reported

Apr 2025

Incident date

Jan 2025

Mileage

Not provided

Outcome flags

None reported

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.

Reported

Mar 2025

Incident date

Feb 2025

Mileage

Not provided

Outcome flags

None reported

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.

Reported

Mar 2025

Incident date

Mar 2025

Mileage

Not provided

Outcome flags

None reported

"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.

Reported

Mar 2025

Incident date

Oct 2024

Mileage

Not provided

Outcome flags

None reported

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.

Reported

Feb 2025

Incident date

Feb 2025

Mileage

Not provided

Outcome flags

None reported

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!!

Reported

Feb 2025

Incident date

Feb 2025

Mileage

Not provided

Outcome flags

None reported

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.

Reported

Feb 2025

Incident date

Feb 2025

Mileage

Not provided

Outcome flags

None reported

Brakes failing while driving in the rain. I was unable to use my brakes in the rain and headlights turned off while driving too. Took it to the dealer and they won't do anything unless lights are on on dashboard to read the code.

Reported

Feb 2025

Incident date

Jan 2025

Mileage

Not provided

Outcome flags

None reported

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.

Reported

Jan 2025

Incident date

Jan 2025

Mileage

Not provided

Outcome flags

None reported

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.

Reported

Nov 2024

Incident date

Nov 2024

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2015 Toyota Prius V. The contact stated while driving at various speeds, there was an abnormal knocking sound coming from the engine compartment. The check engine warning light was illuminated. Additionally, the contact stated while driving at speeds under 65 MPH, the vehicle intermittently lost motive power. The vehicle was taken to an independent mechanic where it was diagnosed and DTC codes: P0300, P0302, P0303, and P0304 were retrieved. The contact was informed that several undisclosed parts needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 162,000.

Reported

Nov 2024

Incident date

Oct 2024

Mileage

Not provided

Outcome flags

None reported

VPC

Reported

Oct 2024

Incident date

Oct 2024

Mileage

Not provided

Outcome flags

None reported

I want to sale

Reported

Oct 2024

Incident date

Mar 2023

Mileage

Not provided

Outcome flags

Crash

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.

Reported

Aug 2024

Incident date

Aug 2024

Mileage

Not provided

Outcome flags

None reported

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.

Reported

Jul 2024

Incident date

Jul 2024

Mileage

Not provided

Outcome flags

None reported

My vehicle has an ongoing issue with the headlights not being bright enough to drive at night with. I have replaced the headlights more than 5 times now over the course of a year, each time with different brands including Toyota OEM headlights. Each time, they are still not sufficiently bright enough to see with at night. This has led to 3 collisions with curbs and objects which caused damage to my vehicle, because I could not see the objects while having to drive at night. I have brought the issue up to Toyota and they said they would not do anything about it. I brought it in for service to Toyota and they tried to charge me $200 to even look at it, money which I do not have. I am forced to continue driving at night for work and fear I will get into a more serious crash or hit a pedestrian as the headlights aren't bright enough to see safely at night. The photo I have included shows a gash in the tire and dent in the rim where it hit the curb. The issue seems to be the headlight wiring or connectors. When I replace the headlight bulbs, they are a bit brighter initially. Thus initial brightness only lasts about a week, and it's still not sufficiently bright to drive safely. They then dim even further to the point where it's like driving without headlights at all. Again this has led to 3 collisions at this point since I'm required to drive at night and don't have the money to fix it. Toyota refused a good faith repair and did not acknowledge there was an issue, however if you do a web search for "Prius headlights too dim" it seems to be a major issue with many other Prius owners. It should be noted that even the high beam headlights are not bright enough to sufficiently see with at night.

Reported

Jun 2024

Incident date

May 2024

Mileage

Not provided

Outcome flags

Crash

I started hearing the whirring sound from the brake booster that normally only comes on at startup almost constantly, about every 15 seconds. Along with this, a puffing sound and a pulsing from the brake pedal when stopped with the car on, such as at a traffic light. Also, when coming to a stop there would be a shudder from the brakes. After about a month I was driving when 3 separate warning lights lit up on the dashboard and the next time I braked the pedal felt very different than normal, very mushy, and the car seemed to not stop as well. I consulted a repair shop and they told me it’s a common problem with this model: brake booster/actuator failure resulting in a loss of the ABS system. They quoted me over $2000 to make the repair. Internet research confirmed that this is a common problem that Toyota is aware of but refuses to acknowledge as something to be recalled, despite the huge safety risk associated with it. This on a car with only 85,000 miles.

Reported

Mar 2024

Incident date

Mar 2024

Mileage

Not provided

Outcome flags

None reported

Airbags didn’t deploy in a front end collision that totaled the car. The driver hit their forehead on the steering wheel. Driver had bruising from the seatbelt. There were no warning lights or indications of any issues.

Reported

Jan 2024

Incident date

Dec 2023

Mileage

Not provided

Outcome flags

Crash

Driving making slight turn car locked up steering wheel, brakes and gas all locked up ran in to a wall. The vehicle just failed with no prior warning.

Reported

Aug 2023

Incident date

Aug 2023

Mileage

Not provided

Outcome flags

Crash 1 injuries

My brake booster is failing and has been confirmed with Certified Toyota Master Mechanics at Toyota Dealerships that it is failing. Toyota has a CSP Called ZJB to replace these once the brake booster fails. My car has been identified as one of the cars with a faulty brake booster and I’m terrified to continue to drive it as it has to throw a code and break before they will change the faulty part. I want them to fix it before it fails and someone gets hurt. What do I do? There are a lot of other complaints about this but Toyota is not fixing them until they break. This is a huge safety issue.

Reported

Jul 2023

Incident date

Jul 2023

Mileage

Not provided

Outcome flags

None reported

When I parked my car and stopped the engine after driving for 90 min/62 miles on June 22, 2023, I found that I couldn't lock my car's door, through my remote, door handle or the switch inside the door. Upon further examination, I saw complete loss of the power: no light, no audio, no other accessory power, no start of engine. Foot press on the brake feels heavy/less responsive. One hr after the incident I went back (because I had some business to attend) to the car, everything looked normal (with full functions recovered) as if nothing happened before. 6 hrs later the car still behaved fine. I measured 12-v battery and it registered 12.3 v (I bought the car new 8 years ago and I haven't changed the battery yet). I noticed that my the clock in the car lost 10 mins (behind correct time) and I concluded the complete loss of battery power lasted about 10 mins. By the time of this report, I have started the engine 5 times without any problem but this loss of power gravely concerns me. I saw recalls for similar problems affecting similar prius models/years however my car is not on the list.

Reported

Jun 2023

Incident date

Jun 2023

Mileage

Not provided

Outcome flags

None reported

1. Brake accumulator pump is running too often, indicating that there is a pressure leak in the braking system. 2. As designed the pump will run only on occasion to charge the booster fully. This pump runs a lot, whether the car is running, or not, whether the brakes are applied, or not, and regardless of braking rigorously or gently. 3. Occasionally, on start up, brake pedal goes to the floor as the accumulator has lost all charge. 3. No brake warning lights on dash, yet. 4. No service codes known, yet. Toyota had a customer support program to address this issue, extending warranty to 10 years or 150,000 miles. I am at 160,000, 8 years. The problem has been occurring for a while, but I was not aware as it was my wife's car and driven solely by her. I was told today by a Toyota resolution specialist that no help would be forthcoming, and to hope that NHTSA issues a recall wherein my problem with the braking system would then be addressed. This seems problematic for many reasons, not the least of which is that it is regarding BRAKES, an integral part of the safety equipment to ensure our highways are without danger or have no known issues that have not been resolved by a car manufacturer. My Toyota case number is 230426001055. This 'complaint' is to alert this agency that there is a problem with my vehicle, and others, known by Toyota, as evidenced by past Customer Support Program, and as substantiated today by service rep at Family Toyota of Burleson, and there is no recompense available for the $3,000.00 repair required to ensure my vehicle safely travels our nations highways. While I understand that a car cannot be warrantied indefinitely, an eight year old car that has been meticulously maintained with a serious safety time bomb should not fall upon the owner entirely, nor should it be the responsibility of your agency to force the hand of the automaker. Since that is there stance, I appeal to you to respond seriously and help me try to remedy.

Reported

Apr 2023

Incident date

Apr 2023

Mileage

Not provided

Outcome flags

None reported

I bought this car brand new and have had it serviced regularly at a Greensboro Nc Toyota dealership. It has 127,000 miles on it. I starting hearing a grinding whirring noice a lot lately and determined it is a brake actuator/brake booster. Took it to the dealership and they confirmed it to be a brake booster going bad. Engages at least 4 times a minute. There is a customer support program for this repair from Toyota ZJB and covers the part up to 10 years or 150,000 miles. I am in the covered period but it has to break first before they will cover it even though they confirmed it is going bad. It has to “throw a code” before Toyota will pay. I reached out toToyota and they reached out to the dealership which is Greensboro Toyota in Greensboro, NC and their regional office won’t fix it because it would come out of their pocket and Toyota won’t fix until it breaks. My research confirms this could be a bad safety issue driving around waiting for this to break. There are no codes yet but the dealership has heard it and confirmed it’s going bad and I have video of the part going bad. I always service everything with my car or home when it needs to be done and to be told to drive around until it breaks is negligent. Apparently it is a 2-3k fix. This is a serious safety issue that Toyota is aware of. Retha Fisher 16 Fawnwood Ct Greensboro, NC 27407 336-314-2000

Reported

Mar 2023

Incident date

Mar 2023

Mileage

Not provided

Outcome flags

None reported

The brake assist. Driving and suddenly no brakes. Happened 2x in this vehicle and had to get a tow each time, even after getting new brake pads the first time it happened at my mechanics. The dealer confirmed today that they would fix the problem at $2700. The lights for traction and abs went off with a warning sound. Pulled over both times and called aaa for tow…..each a separate incident.

Reported

Feb 2023

Incident date

Feb 2023

Mileage

Not provided

Outcome flags

None reported

My Prius V has slow acceleration and the RPMs seem to go unusually high on acceleration. This makes it dangerous to pull out from a stop sign, etc. in certain situations that would be fine in another car of the same make and model. And recently it has started to throttle up when taking my foot off the gas and even when pressing on the brake. This happens intermittently and randomly. Fortunately no accidents have occurred yet and I'm trying to get the problems resolved with Toyota, but the dealer says it will be hard for them to diagnose when the problem is not occurring and there are no warning lights. Less than 60,000 miles on it.

Reported

Oct 2022

Incident date

Oct 2022

Mileage

Not provided

Outcome flags

None reported

The Incident was body and light

Reported

Sep 2022

Incident date

Sep 2022

Mileage

Not provided

Outcome flags

None reported

The brake booster pump assembly has failed through no fault of my own. This is a major safety issue!

Reported

Jun 2022

Incident date

Jun 2022

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2015 Toyota Prius. The contact stated while driving at various speeds, the brake, check engine, and ABS warning lights illuminated. The "Check Hybrid System - Stop Vehicle in A Safe Place" messages were displayed. The vehicle was taken to an unknown dealer where an unknown repair was completed; however, the failure recurred while driving. Additionally, the contact stated that while driving 25-45 MPH, the vehicle stalled. The contact was unable to restart the vehicle after several attempts. The vehicle was towed to the dealer who informed the contact that they could not duplicate the failure. The failure persisted. The vehicle was towed to the contact's residence. The contact became aware of NHTSA Campaign Number: 20V369000 (Hybrid Propulsion System). The manufacturer was notified of the failure and informed the contact that they could not assist. The vehicle was not diagnosed or repaired. The failure mileage was approximately 29,407.

Reported

Jun 2022

Incident date

Jun 2016

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2015 Toyota Prius. The contact stated that as he approached a stop light at 25 MPH, the brake pedal was depressed and traveled to the floorboard as he attempted to stop the vehicle. The brakes failed to operate without warning as he hit the vehicle in front of him. The air bags did not deploy upon impact. A police report was filed and both the contact and the other driver were able to drive away from the scene. No injuries were reported. Prior to this failure, the contact stated that the same failure occurred months prior while traveling at 20 MPH in the rain. The contact stated that the brakes failed to operate without warning as he depressed the brake pedal to the floorboard; he hit an unknown object on the road due to the failure. The contact initially thought that the failure was related to slippery roadways; however, after the most recent failure, he related the prior incident with his most recent failure. The dealer nor the manufacturer had yet to be notified of the failure. The vehicle had yet to be serviced or diagnosed. The failure mileage was approximately 80,000.

Reported

Jun 2022

Incident date

Nov 2021

Mileage

Not provided

Outcome flags

Crash

My mom was involved in an accident in her 2015 Toyota Prius on April 19, 2022, which she advised lurched forward at a stop and when applying the brakes to stop the vehicle, she said was unresponsive, causing her to clip a vehicle and sending her vehicle into a ditch totaling her car and injuring her passenger and her. I would like to have this investigated and hold Toyota responsible. This could have been much worse and lives could have been lost. She is now without means of transportation, and she is now possibly responsible for damages to property and bodily injury because of this. Through my research I have discovered multiple class action lawsuits brought against Toyota for the same exact models. I asked the police officer to run a scan on the computer, but he advised it was only for serious accidents. There was no indication of the problem or messages.

Reported

Apr 2022

Incident date

Apr 2022

Mileage

Not provided

Outcome flags

Crash 2 injuries

My 2015 prius gen 3 has a 118,000 miles since we bought it brand new in 2015. We periodically have it maintained with our own mechanic even after the warranty expired with the dealer. However, we experienced that the lights of Brake system, ABS and VSC went out the same time. We have it checked but there was no error code. the car is operational but the brake system does not engaged fully when you presses the brake pedal. The vehicle does not stop immediately if you need to immediately stop the vehicle. The problem strongly indicates failure in ABS control modules which can costs us a big amount of money ranging from $3,500 minimum up to $6000 max. Majority of the prius owners that shared their experiences to us regarding the same problems are unanimous in their opinion that it is indeed the brake control module. That such defect can only be pointed to the manufacturers' misdeeds.

Reported

Feb 2022

Incident date

Feb 2022

Mileage

Not provided

Outcome flags

None reported

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 harnesses of those vehicles, although all are parked in the same area. The vehicle is currently pending repairs at Fred Haas Toyota Country in Houston, TX and will be there for at least a couple of weeks pending availability of parts. Electrical issues of this type can cause serious failure of safety features. Toyota has never told me that they use soy based elements in their vehicles that would entice rodents to chew the wiring or otherwise entice them into the vehicle. I do not have a report from insurance yet, but I have filed a claim.

Reported

Dec 2021

Incident date

Nov 2021

Mileage

Not provided

Outcome flags

None reported

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.

Reported

Oct 2021

Incident date

Aug 2021

Mileage

Not provided

Outcome flags

None reported

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain model year 2014-2015 Toyota Prius V vehicles manufactured November 7, 2013, to January 7, 2015. The occupant classification system (OCS) that activates or deactivates the passenger seat air bag system may be improperly calibrated. As a result, the passenger air bag may not deploy in a vehicle crash. As such, these vehicles fail to comply with Federal Motor Vehicle Safety Standard (FMVSS) No. 208, "Occupant Crash Protection."

Risk: If the air bag does not deploy as intended, there is an increased risk of injury in the event of a crash.

Remedy: Toyota will notify owners, and dealers will re-calibrate of the OCS system, free of charge. The recall began February 12, 2015. Owners may contact Toyota customer service at 1-800-331-4331.

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2013-2015 Prius and 2014-2017 Prius V vehicles not included in recall 18V-684. Excessive voltage in the Intelligent Power Module (IPM) within the inverter may cause the hybrid system to shut down, causing the vehicle to stall while being driven.

Risk: An unexpected hybrid power system shut down may increase the risk of a crash.

Remedy: Toyota will notify owners, and dealers will perform a software update for the hybrid system. If the vehicle has experienced an inverter failure with certain hybrid system faults related to this condition, the inverter assembly will be repaired or replaced, prior to software update. All repairs will be performed free of charge. This recall began July 24, 2020. Owners may contact Toyota customer service at 1-888-270-9371. Toyota's number for this recall is 20TB10 / 20TA10.