2015 TOYOTA PRIUS Service Brakes Problems

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 and hopefully you can help.

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.

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 transportation in a car-dependent area, so this issue directly affects my ability to drive safely and could endanger others on the road. 3)Yes. The issue was diagnosed and confirmed by an authorized Toyota dealership center. 4)Yes. The vehicle was inspected by an authorized Toyota dealership only. 5)Yes. The ABS light, brake warning light, and other dashboard indicators suddenly appeared in July 2025.

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 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.

On or around 9/13/25 my ABS, Brake, Traction and Emergency Sign sensors turned on in my 2015 Toyota Prius. I noticed that my brakes became squishy and when I drove, it took longer for my car to brake (there was more distance in my braking ability to stop the car). My car also felt a bit more airy than it usually does when I drive it. I took it to 2 independent car repair shops for a diagnostic and both told me that the ABS C1391 code came up. Soon thereafter, I took it to a local Toyota dealership for a diagnostic and was given the ABS C1391(code) Abnormal Leak in the accumulator. The Toyota mechanic informed me that that when he did the diagnostic, the TSB 0024-19 code came up on his end, which means that Toyota alerts their mechanics of the necessary procedures to implement for this problem, as it's a known Toyota problem and defect: 1) Remove & Replace the Brake Booster Assembly w/the Master Cylinder (apparently the master cylinder goes out too since they're connected) and 2) Remove and Replace the Brake Booster Assembly Pump. Toyota's estimate to repair it is $4,404.72; I can't afford this and need a car. It's my only car! I did research and learned that this is a known Toyota issue for Prius (2010-2015) and a Customer Support Program w/an extended warranty was issued to cover the full cost. Despite this, their extended warranty expired for me on 12/29/24, despite me meeting the other 10 yr or 150K or less mileage criteria. Despite filing a complaint with Toyota's Resolution Center they refused to extend or offer warranty or any payment for a KNOWN Toyota defect, saying my issue was "after the extended warranty date" and there "isn't a recall." I'm disgusted to say the least about this, as Toyota is well aware of this car part defect which is a safety hazard and liability for its customers. Something must be done about this. It's unfair and not equitable to have loyal Toyota customers absorb the cost of known safety hazard defects by Toyota and risk lives.

Brake Accumulator and Master cylinder has failed. All lights for the ABS, TSC, and VSC are iliuminated

Before, I was driving and occasionally the traction control light would flash when I put my foot down on the brakes but would go away when released. I didn't think much of it but then a few days later, I went to brake to stop the car and then the abs, traction control and brake system lights lit up on the dash and wouldn't go away. I pulled over safely and turned the car off and on again but it wouldn't go away. The brakes were also noticeably more firm compared to before as it was quite squishy but now it was solid and all regen braking went away and it appeared I had no more ABS which could lead to a collision. I immediately took it into the dealer to have it diagnosed. I did some reading and if I kept driving with this problem, eventually the brakes would fail and collapse completely and leave me unable to stop the vehicle. At the service center, they were able to read the code DTC C1246 and clearing the codes did not work. The part that was replaced was the brake booster and the brake master cylinder and the brake pedal stroke sensor. It appears that a warranty program exists for this issue but it is not a recall. I am also not sure if the part that was replaced is a revised part that will no longer have this issue or there is no change in the part design. I believe this is a massive safety issue and should be a recall and not a warranty replacement program as every prius should be recalled for this defect. I was very close to being out of warranty and if I had taken any longer to bring it into the dealer I would have been out of the extended CSP warranty. Even the dealer initially thought I would be out of warranty but I had to argue that I was in warranty and should be eligible for a warranty replacement and that I should not need to pay for a diagnostic fee despite it not being a recall.

Got the warning code for C1391 for the brake booster. It failed at 140k miles but because it failed past the 10 year mark did not qualify for the Toyota extended warranty program. I don't think the warranty program is good enough and should be addressed as a recall. I had sudden total brake failure on the highway which could have been extremely deadly.

Our 2015 Prius suffers from the Brake booster/master cylinder defect as outlined in TSB T-SB-0024-19. Which is a well known an pervasive issue for this vehicle. We were unable to medically drive when the vehicle was still under the time frame and mileage which would have allowed it to be covered by Toyota. Despite requesting an extension due to extenuating circumstances (medically unable to drive, thus detect the issue during the covered period) they disclaim any and all remedy. When I was able to drive the vehicle after being cleared from surgical recovery restrictions, the issue was immediately found and reported to Toyota whom promptly denied the claim through their local dealership and subsequently through their offices after sending a letter requesting an exception or good will extension. This issue is a major safety issue and unfortunately also a cost prohibitive repair to take on. The defect in question is acknowledged by Toyota through MULTIPLE TSB's and warranty extensions and their own ZJB Customer support program. We are under the actual mileage cutoff but outside the time frame by a few months (medical period where the vehicle was not driven).

I have a 2015 Toyota Prius with 48,600 miles. My breaks started failing suddenly while driving which almost got me into a car accident. I took it to my mechanic immediately and the DTC was Code C1281. I was advised to take the car to A Toyota dealer. I got an appointment and a manager was waiting for me wanting to charge me $250 for a new diagnostic test and $2,500 - $3,000 for repair if the diagnosis was correct. I called customer service and washed their hands from any responsibility. I called the Toyota's customer advocate service located in Plano, TX and was on the phone for more than an hour. They apologize, were very courteous, but I was told that I was not covered because I had call too late and that the repair offered by Toyota had expired. They acknowledged that Toyota never issued a recall for this manufacturer defect. I informed them that the discovery of the problem had occurred on [XXX], 10 years and 2 month after I bought the car from them and that the car was almost new with very little mileage. I let them know that felt this was a deceptive trade practice with breach of warranty and breach of implied warranty of merchantability, along with it being a fraudulent concealment with failure to warn their customers of potential danger and harm. I plea with the Toyota's advocate that since the statute of limitation and equitable tolling had not elapsed from the day of discovery that they should honor my request for it being just. I was told that Toyota's decision on the Prius brake defect was not covered and that I was free to take my car to a Toyota dealer or an independent mechanic, whatever was more convenient and/or affordable and that the cost was on me. I asked if I were to get a new Toyota car and trade in my old car if they would appraise it as if the defective brake part had not malfunctioned. The answer was that the value of my car if traded in, would be significantly less due this issue. He gave me a Ref # [XXX] and hanged up. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT

Code C1391 Leakage in Accumulator abnormal. This required replacement of the master cylinder, brake booster pump assembly. This fault resulted in mushy brake pedal and loss of abs system. The components were replaced at a Toyota dealership. Total cost was $3207.82. Apparently this was a known issue with Toyota for Prius models 2010 through 2015.

Failure of the: pump break booster actuator Had it towed to Toyota and they said it’s a $3,500 repair

The brake booster pump and ABS actuator is beginning to fail recently. I took it to the Toyota dealership to use Customer Support Program ZJB to replace the parts, but they said my vehicle was not covered. They then quoted me $3000 to fix the issue. The brake booster pump and ABS actuator contribute to safety while driving, so why is this not recalled? We need an official recall to happen and not a simple Customer Support Program.

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.

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.

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.

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)

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.

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.

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.

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 INFOR

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.

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

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!

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.

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

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.

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.

"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.

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.

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.

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.

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.

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.

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.

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.

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.

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

Mileage: 127,000

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.

Mileage: 188,000

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

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.

Mileage: 80,000

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.

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.

As stated from 5 months after we bought it, and the first prius, the car won't start. No matter if parked flat, keys in or out over night, or the temp, when the break is pushed it is squishy and makes draining noise and won't start. As a dr on call i have LOST patients because I could not leave my house. i carry and use the charger daily ever since. Taken in lots. they say, "you don't drive enough..or some other bogus excuse, like don't leave keys in car, which is how priuses start and run!. the car is driven in all ways a lot. also we buy headlights and headlamps on both about every 2 months. also it looses power and has shut off while driving. the worst is when it would start on its own in the locked garage. at that point my wife just quit driving all together. nothing but nightmares. She almsot crashed on fw when power went out.

While attempting to accelerate from a stop light, the Prius stalled. It would not accelerate although the engine revved. I restarted the car by powering completely off and back on. I tried to accelerate again multiple times until it slowly came up to speed the third attempt. The car was in drive and has never happened before. This is a safety concern for multiple reasons but the main being it can cause harm to those in the vehicle as well as other drivers on the road when the car stalls unexpectedly. There were no warning signals on the dash. Toyota dealer looked at it right away, ran diagnostics, and could not find an issue. Nothing was “fixed” or updated.

BRAKES FAILED TO SLOW OR STOP VEHICLE AT ?20 MPH; DRIVING ON A SIDE STREET. NO WARNING LIGHTS WERE ACTIVE THAT MORNING. CRASH INTO TELEPHONE PHONE RESULTED IN "TOTALED" CAR. THERE WAS BROKEN BRANCHES ON ROAD AND SOME MUD; CAR MAY HAVE SKIDDED. MY WIFE SAYS THE CAR SEEMED TO SPEED UP BEFORE THE CRASH

Mileage: 34,000

I PURCHASED THE VEHICLE NEW IN 2025 AND I HAVE BEEN EXPERIENCING BRAKE FAILURE ISSUES EVERY TIME I ATTEMPTED TO BRAKE OVER EITHER A POTHOLE, A SLICK SURFACE LIKE A METAL SHEET AT ROAD CONSTRUCTION OR WET ROADS THE BRAKE WOULD FAIL. ALL THE RED WARNING SIGNS WOULD COME ON IN THE DASHBOARD AND THE BRAKES WOULD MAKE THAT LOUD HORRIBLE NOISE. I LOVE MY PRIUS, I DON'T WANT TO GET RID OF IT. I WAS HOPING TOYOTA MOTORS WOULD HAVE A FIXED FOR THE BRAKING SYSTEM BY NOW AS THIS IS VERY UNSAFE SPECIALLY INEXPERIENCED DRIVERS. MY GOAL IS TO PASS THIS CAR TO MY TEENAGE DAUGHTER WHEN SHE GOES TO COLLEGE IN 2021, BUT THIS MAY NOT BE POSSIBLE IF TOYOTA DOESN'T TO UP WITH A SOLUTION TO THE PROBLEM.

Mileage: 75

THE BRAKES ON MY 2015 PRIUS TOTALLY FAILED AND I HAD TO SWERVE TO AVOID CRASHING INTO THE CAR STOPPED IN FRONT OF ME. I'VE BEEN DRIVING FOR MORE THAN 30 YEARS AND HAVE NEVER EXPERIENCED ANYTHING LIKE THIS. IT WAS TERRIFYING. TO WIT: I WAS DRIVING ABOUT 20 M.P.H. ON CITY STREETS IN LONG BEACH, CALIFORNIA, IN APRIL 2019. AS I DROVE OVER A BRIDGE, TRAFFIC WAS COMING TO A STOP AT A RED LIGHT 200 YARDS IN FRONT OF ME. I DROVE OVER A NARROW METAL PLATE--THERE ARE SEVERAL ON THE BRIDGE--AND HIT THE BRAKES, BUT MY CAR DIDN'T SLOW. A WARNING LIGHT FLASHED--A STABILITY CONTROL LIGHT, I BELIEVE, DUE TO THE METAL PLATE. I PRESSED THE BRAKES TO THE FLOOR AS MY CAR ROLLED DOWNHILL ON PAVEMENT. MY CAR DID NOT SLOW AT ALL. I LOOKED IN THE DRIVER SIDE MIRROR AND SAW THAT THE LANE TO MY LEFT WAS CLEAR, SO I SWERVED INTO IT WITH MY FOOT ON THE BRAKES. THE CAR SLOWLY CAME TO A STOP WELL BEYOND WHERE I SHOULD HAVE STOPPED HAD MY BRAKES WORKED PROPERLY. THE INCIDENT WAS SO TERRIFYING THAT I HAD TO PULL OVER TO COLLECT MYSELF. MY BRAKES WORKED PROPERLY AFTER THAT. A FEW DAYS LATER, I TOOK MY CAR TO PENSKE TOYOTA IN DOWNEY, CALIFORNIA, WHERE I BOUGHT THE CAR, AND TOLD A SERVICE AGENT WHAT HAPPENED. I ASKED HIM TO FIX THE PROBLEM. AFTER SERVICE TECHNICIANS INSPECTED THE BRAKES THAT DAY, I WAS TOLD THE BRAKES APPEARED TO BE FINE AND, BARRING A RECALL, NOTHING COULD BE DONE. I'VE BEEN DRIVING THE CAR SINCE THEN, BUT I'VE WORRIED THAT THE BRAKES COULD FAIL AGAIN. THEN I SAW THE JAN. 3, 2020 ARTICLE BELOW. AS A RESULT, I'VE RENTED A CAR AND HAVE STOPPED DRIVING MY PRIUS. THIS IS A TERRIFYING, LIFE-THREATENING PROBLEM THAT NEEDS TO BE ADDRESSED NOW. HTTPS://WWW.DAILYNEWS.COM/2020/01/03/A-SOUTHERN-CALIFORNIA-TOYOTA-DEALER-WANTS-THE-CAR-GIANT-TO-FIX-AN-ALLEGED-BRAKE-DEFECT-BEFORE-PUTTING-LIVES-AT-STAKE/ P.S. I'M NOT SURE OF THE EXACT DATE THIS INCIDENT OCCURRED. DATE BELOW IS MY BEST ESTIMATE.

Mileage: 30,000

TL* THE CONTACT OWNS A 2015 TOYOTA PRIUS. WHILE THE CONTACT'S DAUGHTER WAS DRIVING AT AN UNKNOWN SPEED, THE BRAKE WARNING INDICATOR ILLUMINATED. THE CONTACT INFORMED HIS DAUGHTER TO CHECK UNDER THE HOOD FOR POSSIBLE LOW BRAKE FLUID. WHEN EVERYTHING CHECKED OUT, THE CONTACT'S DAUGHTER RESTARTED THE VEHICLE AND THE WARNING INDICATOR TURNED OFF. THE CONTACT RECEIVED A CUSTOMER SUPPORT PROGRAM NOTIFICATION (ZJB) REGARDING A DEFECT WITH THE BRAKE BOOSTER OR BRAKE BOOSTER PUMP, WHICH COULD CAUSE THE BRAKE LAMP WARNING INDICATOR TO ILLUMINATE. THE CONTACT NOTIFIED FRONTIER TOYOTA (23621 CREEKSIDE RD, VALENCIA, CA 91355, 661-255-7575) OF THE NOTIFICATION AND WAS INFORMED THAT A DIAGNOSTIC TEST WOULD NEED TO BE PERFORMED BEFORE THEY COULD MAKE ANY REPAIRS. THE MANUFACTURER WAS ALSO NOTIFIED OF THE NOTIFICATION AND PROVIDED THE SAME INFORMATION AS THE DEALER. THE MANUFACTURER PROVIDED CASE NUMBER: 1909041948. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 35,000.

Mileage: 35,000

VIOLENT SHAKING WHEN APPLYING BRAKES IN FORWARD AND REVERSE. VEHICLE DOES NOT SLOW AND STOP PROPERLY WHEN BRAKING. VEHICLE INTERMITTENTLY SKIPS WITH NO SLOWING OR STOPPING EFFECT WHEN BRAKING.

SENT AN ALERT ON CERTAIN INTERNAL MALFUNCTION OF INTERNAL ASSEMBLIES OF THE BRAKE BOOSTER FROM TOYOTA. ASKING ME TO BRING IT IN FOR EXAMINATION. BRAKES HAVE BEEN ACTING SPONGY AND AM LOSING A SMALL AMOUNT OF BRAKE FLUID MONTHLY.

Mileage: 63,000

I ENTERED MY PARKED, STATIONARY PRIUS, PRESSED MY RIGHT FOOT ON THE BRAKE PEDAL, DISENGAGED THE PARKING BRAKE AND PRESSED THE ON/OFF BUTTON TO TURN THE CAR ON. MY FOOT REMAINED ON THE BRAKE PEDAL. THE ENGINE IMMEDIATELY RACED AND THE CAR BEGAN TO ACCELERATE AT HIGH SPEED. I STOMPED ON THE BRAKE PEDAL AND THE CAR KEPT MOVING. THE SOUND OF THE ENGINE WAS LOUD ENOUGH THAT PEOPLE IN NEARBY HOUSES HEARD IT. MY CAR WOULD NOT SLOW WITH MY EFFORTS TO BRAKE. I TRIED TO SHIFT INTO NEUTRAL AND PARK BUT THE CAR DID NOT SLOW DOWN. IT RACED ACROSS THE STREET AND PLOWED DIRECTLY INTO A NEIGHBOR'S STONE WALL. MY CAR BECAME WEDGED BETWEEN THE WALL AND A LARGE TREE. I HAD TO EXIT THE VEHICLE FROM THE PASSENGER SIDE AS THE DRIVER'S DOOR WAS PRESSED AGAINST THE TREE. AFTER THE COLLISION, INTERIOR LIGHTS WERE NON-FUNCTIONING EVEN WHEN THE DOOR WAS PROPPED OPEN. THE CAR WOULD HAVE CRASHED THROUGH THE HOUSE IF IT HAD NOT BEEN STOPPED BY THE WALL AND TREE.

Mileage: 50,000

TOYOTA SENT ME A LETTER STATING THE BRAKE BOOSTER MAY CAUSE ISSUES WITH MY CAR AND ALL MY LIGHTS CAME ON FOR THIS ISSUE. TOYOTA TOLD ME TO TAKE CAR TO DEALER FOR REPAIR UNDER NEW WARRANTY EXTENSION FOR BRAKE BOOSTER ISSUES. DEALER IS NOW TELLING ME IT'S NOT COVERED SO I NEED TO PAY FOR REPAIRS. I ASKED WHAT I'M PAYING FOR AND THEY STATED NEW BRAKE BOOSTER. WHAT'S GOING ON HERE??

Mileage: 60,000

AT 41,000 THE VEHICLE PER A GOODYEAR DEALER ADVISED THAT MY FRONT BRAKES WERE METAL ON METAL. THE CALIBER WAS ALSO FROZEN AND THE BRAKE LINE WAS LEAKING. THE CAR WAS AT THE DEALERSHIP ON 3/7/19 WITH NO MENTION OF A NEED FOR REPAIRS TO THE FRONT BRAKES. IS THERE A GENERAL PROBLEM WITH BAD BRAKES ON TOYOTA VEHICLES?

Mileage: 41,000

AS I WAS DRIVING OUR 2015 TOYOTA PRIUS AT ABOUT 30 MPH ON A SURFACE STREET AND GOING STRAIGHT, WE CAME UPON A METAL CONSTRUCTION PLATE OVER THE ROADWAY SURFACE AND THE BRAKES WERE AUTOMATICALLY APPLIED TO THE VEHICLE. THERE WERE NO VEHICLES DIRECTLY IN FRONT OF ME WITHIN 100 FEET. THE VEHICLE DID NOT COME TO A COMPLETE STOP, BUT THIS SUDDEN ACTION COULD HAVE CAUSED A COLLISION.

Mileage: 38,500

I CAN'T PUT BREAK .THE SIGN LIGHT ON IS SLIP SIGN, ABS SIGN AND HAND BREAK SIGN. THE SIGN LIGHT ON IN 2 TIME . 07/31/2017 IS SAME THING AND THEN ALSO CHECK HYBRIDS SYSTEM CHECK SIGN LIGHT ON AND TRIANGLE SIGN LIGHT ON .

Mileage: 62,000

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.

Mileage: 20,000

I WAS SITTING IN THE PASSENGER SEAT OF THE CAR WHILE IT WAS PARALLEL PARKED. I PRESSED THE PUSH TO START BUTTON TO TURN ON THE BATTERY SO I COULD CHARGE MY PHONE. THERE WAS NO ONE IN THE DRIVER SEAT. THE CAR TURNED COMPLETELY ON WHEN I REACHED OVER TO PRESS THE BUTTON. NOT ONLY DID THE ENGINE START, BUT WITHOUT ANYONE PRESSING ON THE BREAKS THE CAR RELEASED ITSELF FROM BEING PARKED. THE CAR STARTED ROLLING BACKWARDS INTO THE CAR PARKED BEHIND ME. I HAVE NO EXPLANATION ABOUT HOW THIS HAPPENED. I HAVE BEEN READING INTO IT AND APPARENTLY IT'S A DEFECT OF THE 2015 AND OLDER MODELS. WHEN THE CAR STARTED ROLLING BACK I ALSO STARTED PRESSING BOTH THE PARK AND PUSH TO START BUTTONS TO TURN IT OFF AGAIN. I'VE NEVER FELT SO UNSAFE IN A VEHICLE AND GOES TO CONFIRM THAT PARK AND PUSH TO START SHOULD NOT BE BUTTONS!!! IT MAKES THE VEHICLE MUCH MORE DANGEROUS NOT BEING ABLE TO OVERRIDE THOSE COMMANDS WHEN IT CHOOSES TO GO ON ITS OWN.

Mileage: 21,000

I APPLIED THE BRAKE WHEN THE CAR IN FRONT OF ME STOPPED SUDDENLY AND MY CAR SEEMED TO ACCELERATE AND I HAD TO PUT THE BRAKE ON AGAIN TO GET THE CAR TO STOP RESULTING IN A COLLISION. I WAS DRIVING AT A SPEED OF LESS THAN 25 MILES AN HOUR.

Mileage: 9,200

TL* THE CONTACT OWNS A 2015 TOYOTA PRIUS. WHILE DRIVING APPROXIMATELY 5 TO 10 MPH AND APPROACHING THE DRIVEWAY, THE BRAKES FAILED. THE VEHICLE ACCELERATED AND CRASHED INTO A GATE. THE BRAKE PEDAL WAS RE-APPLIED AND THE VEHICLE STOPPED. THE CONTACT STATED THAT THE VEHICLE TRAVELED 20 FEET BEFORE IT STOPPED. A POLICE REPORT WAS NOT FILED AND THERE WERE NO INJURIES. THE AIR BAG FAILED TO DEPLOY. THE VEHICLE WAS TOWED TO THE DEALER FOR DIAGNOSTIC TESTING AND REPAIR. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 17,000.

Mileage: 17,000

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.

Mileage: 8,000

I WAS PULLING OUT OF A PARKING SPACE WHERE MY FRONT WAS UP AGAINST A BUILDING WITH A CAR ON EITHER SIDE OF ME. I REVERSED FOR ABOUT 25' WHERE A TELEPHONE POLE MANDATED THAT I MAKE A K-TURN TO GET OUT. AS I SWITCHED FROM REVERSE TO FORWARD, I SAW A SPARK AS THE CAR JET-PROPELLED FORWARD. I TRIED TO BREAK MULTIPLE TIMES, BUT THE CAR ACCELERATED THE 25' INTO THE WALL. ALL AIRBAGS DEPLOYED, AND FLUID GUSHED OUT OF THE FRONT END. THE CAR WAS DECLARED A TOTAL LOSS. I WAS TOLD BY TOYOTA AND MY INSURANCE COMPANY THAT I MUST HAVE ACCIDENTALLY ACCELERATED INSTEAD OF REPEATEDLY BREAKING. I AM GRATEFUL THAT I HIT A WALL INSTEAD OF PEOPLE. SOMEONE COULD EASILY HAVE DIED HAD I HAD SWITCHED FROM REVERSE GEAR TO FORWARD IN LESS CONFINED LOCATION. THE ENTIRE ACCIDENT LASTED 2 SECONDS, WITH NO OPPORTUNITY TO PULL THE EMERGENCY BREAK OR GO INTO NEUTRAL. PS: I AM A HAPPILY MARRIED DOCTOR WITH BEAUTIFUL CHILDREN AND GRANDCHILDREN, AND NOT AT ALL SUICIDAL. THIS THREE MONTH OLD 2015 PRIUS 3 FAILED BEFORE THE FIRST OIL CHANGE. I AM NOT SATISFIED WITH THE RESULTS.

Mileage: 3,200