2014 Toyota Prius v

N/a

Reported

Jul 2026

Incident date

Jul 2026

Mileage

Not provided

Outcome flags

None reported

I purchased a 2014 Toyota Prius V in 2013, and it currently has 120,000 miles on it. Last month, the engine light came on, so I took it to a dealership. They diagnosed the issue and provided the codes P0302 and P0304. After consulting multiple shops, all confirmed that coolant is leaking into the engine, which means I either need to repair the head gasket or replace the engine entirely. The quotes I've received for this repair range from $5,000 to $15,000, while the current value of the car is only about $5,000. I want to file a complaint regarding Toyota's responsibility for these engine issues. We buy cars because we trust the brand, and in this case, Toyota has broken that trust. Despite maintaining the car according to Toyota's recommended schedule, I have encountered this serious problem.

Reported

Jun 2026

Incident date

Jun 2026

Mileage

Not provided

Outcome flags

None reported

Description of the Problem Vehicle: 2014 Toyota Prius v (Mileage: 70,000) Problem Description: The vehicle is experiencing a critical failure of the Electronically Controlled Braking (ECB) system, specifically the Brake Actuator and Booster Pump assembly. The dashboard currently displays multiple warning indicators: ABS light, Traction Control light, and the Brake System Warning light (Master Warning "!"). Symptoms: Mechanical Failure: The internal high-pressure accumulator is failing to hold pressure. The electric brake booster pump is heard cycling (straining) every 10–20 seconds even when the vehicle is stationary and the brake pedal is not depressed. Loss of Braking Safety Features: The system has disabled regenerative braking and Anti-lock Braking (ABS), causing significantly increased stopping distances and a "wooden," unresponsive brake pedal feel. Predictability of Failure: This failure matches the exact symptoms described in Toyota’s Customer Support Program 20TE07 (and previously ZJB), which acknowledges an internal defect in the brake actuator. Safety Risk: The sudden transition from power-assisted braking to manual hydraulic braking during a drive creates an immediate safety hazard. As the pump motor continues to cycle excessively to compensate for the internal leak, it is at risk of total thermal failure, which would lead to a near-total loss of braking assist while the vehicle is in motion. Additional Notes: Despite the vehicle having only 70,000 miles (well under the 150,000-mile limit acknowledged in Toyota’s support programs), Toyota has declined to provide assistance because the vehicle has surpassed the 10-year age mark. I am filing this report because a primary safety component (brakes) should not experience catastrophic internal failure at 70,000 miles, regardless of the vehicle's age.

Reported

May 2026

Incident date

May 2026

Mileage

Not provided

Outcome flags

None reported

I have 2014 Prius v 5 with 100,000 miles but I had issues with brake booster pump

Reported

May 2026

Incident date

May 2026

Mileage

Not provided

Outcome flags

None reported

8/2025 Car stalled on freeway. Went to dealer. They said nothing wrong. Then on a trip north, car stalled again on freeway. Went to the nearest dealer. They too said nothing wrong. This time same thing. There is a recall for the exact symptoms of the exact car yet they say the repair was done. Why does my vin not qualify for the exact symptoms that generated a recall? This was super dangerous at freeway speed. Toyota knows there is a problem with the inverter and it's computer. Now I'm paying again for a diagnosis. That makes $750 just diagnosing and now if they actually decide it is the inverter, I have to pay upwards of $3000 even though there is a recall? What the heck?

Reported

Apr 2026

Incident date

Apr 2026

Mileage

Not provided

Outcome flags

None reported

The brake booster has failed and seems to be a common issue with this model vehicle for Toyota issued an extended warranty, but I am passed the date and they are unwilling to do anything. Due to the malfunctioning brake booster. The car is unsafe to drive the too expensive to repair.

Reported

Apr 2026

Incident date

Dec 2024

Mileage

Not provided

Outcome flags

None reported

Brake booster is not working

Reported

Feb 2026

Incident date

Feb 2026

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2014 Toyota Prius V. The contact stated that while driving approximately 35 MPH, the brake light, tire pressure, traction control, battery, and other warning lights were illuminated. While attempting to depress the brake pedal, there was more resistance than normal, making it difficult to slow the vehicle. The contact was able to drive the vehicle to the nearest mechanic; however, the vehicle was not diagnosed. The vehicle was then taken to the residence. The vehicle was taken to another certified mechanic, who diagnosed and determined that the brake master cylinder and actuator assemblies had failed. The brake master cylinder and brake actuator assemblies were in the process of being repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 220,000.

Reported

Nov 2025

Incident date

Oct 2025

Mileage

Not provided

Outcome flags

None reported

My 2014 Toyota Prius (VIN [XXX] , 77,000 miles) displayed Brake, ABS, and Slip warning lights. A mechanic confirmed failure of the Brake Booster and Pump Assembly (DTC C1391). Toyota previously acknowledged this as a safety-related defect under Customer Support Program ZJB, but my coverage expired because I never received Toyota’s notice dated May 21, 2019. My car has been undrivable for weeks and Toyota refuses goodwill repair. This is a serious brake safety issue that should be reviewed for recall or extended coverage since many Prius owners have experienced the same failure. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Reported

Nov 2025

Incident date

Oct 2025

Mileage

Not provided

Outcome flags

None reported

Upon inspection, our mechanic determined that the master cylinder assembly and the actuator assembly require replacement (error code C1391). It is currently available for inspection, but will need to be repaired soon. Our safety and the safety of others is at great risk, because there is impending brake failure if driven and the end result could be catastrophic. On 09/13/25, the BRAKE, TRACTION CONTROL, ABS and ((!)) lights came on about 10 minutes from home. We drove home, parked the car and did not drive it again until we took it to our mechanic on 09/15/25. During this incident, the brakes failed to respond properly, which could have led to a serious accident. We took the car to a local mechanic and repairs are currently pending. The estimated cost for the necessary parts is approx. $3,000 and the labor costs are estimated to be between $1,100 and $2,000. Our local Toyota dealership was also contacted and they confirmed the presence of code C1391. Please reference Toyota Service Bulletin POL18-03, which addresses issues related to the braking system in certain Toyota models, including the Prius V. This bulletin indicates that various brake system-related warning lamps may illuminate due to internal malfunctions within the brake system, and it outlines affected parts that may require replacement. Additionally, please reference Toyota Customer Support Program 20TE07, which provides extended coverage for certain brake system repairs. It is concerning that, despite this well-known, very serious problem, Toyota has not issued a recall. While our vehicle currently has 116,975 miles, we are aware that the warranty period ended 10 years from the first date of use or 150,000 miles. However, this malfunction not only endangers our safety, but also that of other drivers on the road. We urge the NHTSA to investigate this matter thoroughly and consider the implications for a potential recall for this model, because Toyota is well-aware of this issue.

Reported

Sep 2025

Incident date

Sep 2025

Mileage

Not provided

Outcome flags

None reported

I have a 2014 Prius V with 92,000 miles. My anti-skid, brake and ABS idiot lights went off approximately 1 week ago. (August 25, 2025) Scheduled an appointment at my Toyota dealer (September 3, 2025) and was told there was an abnormal leak in the accumulator and that the brake booster pump and brake pump assembly needed to be replaced. Cost $5715. Not related to the brakes, but they also said I had to replace the rear shock absorbers as they are leaking and needed to be replaced and then realigned. Cost $1363. This should have been a recall not a mileage or 10 year limit.

Reported

Sep 2025

Incident date

Sep 2025

Mileage

Not provided

Outcome flags

None reported

C1391 - Abnormal Leak of ACC Pressurization. Bad Brake booster assembly.

Reported

Aug 2025

Incident date

Jul 2025

Mileage

Not provided

Outcome flags

None reported

Toyota has a break issue that they extended the warranty for 10 years or 150000 miles and now a few months pass the 10 years I have a problem with the actuator giving warnings and my daughter went into a skid when applying the breaks. She was lucky and didn’t hit anyone. If Toyota knows there is a problem that is a safety concern they should fix it I did get a Toyota dealership to give an estimate to fix it and was told $4300.00 I think that’s too much for a defective part. It should be a safety recall.

Reported

Aug 2025

Incident date

Aug 2025

Mileage

Not provided

Outcome flags

None reported

There was a safety recall issued for brake system malfunctions involving the brake booster and brake booster pump assemblies on my vehicle. Unfortunately, the recall expired on December 31, 2024. On March 4, 2025, at 4:10 PM, I contacted the District Manager Advocate in Plano, Texas. I explained that I had been in the ICU twice and am now [XXX]. During the recall period, I was in and out of hospitals for more than four years, making it impossible for me to be aware of or respond to the recall in time. My vehicle has since begun exhibiting the exact symptoms outlined in the recall. When I brought this to their attention, I was told that while the issue was indeed covered under a past recall, there is nothing they can do now because it has expired. This vehicle is our only mode of transportation, which is critical for my ongoing medical treatments, as well as for my husband who recently suffered a heart attack. As I write this, we have no other option but to continue using the vehicle—despite the serious safety risk—because of the urgent and necessary care both of us require. On August 4, 2025, I contacted Toyota headquarters. They reached out to the dealership and spoke with management, but unfortunately, no resolution was offered except for information about a separate, newer recall. I followed up again with the District Manager and spoke with Ashley, who informed me that after escalating the case, there was still nothing further they could do and she expressed her apologies. This situation has caused further deterioration to my health due to the stress and anxiety of potential vehicle failure, and it has added to the burden of my husband’s fragile health condition. At this time, he has been unable to return to work, and we have no income to cover the cost of a repair that should have been addressed through the original recall. We would deeply appreciate any assistance, reconsideration, or compassionate review of our case. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Reported

Aug 2025

Incident date

Feb 2025

Mileage

Not provided

Outcome flags

None reported

ABS Brake pump actuator booster failed. It is available for inspection. While driving, I started hearing a hissing sound from my brakes. I tried to slow down and my several diagnostic lights (ABS, traction control, brake, check engine, etc.) flashed on while my brakes failed to work properly. I turned on my hazard lights immediately. I was in the middle of the road with my toddler in the car and I almost rammed into the car in front of me. Luckily I was able to pull into a turn lane and pushed with all my might on the brakes and it finally was able to stop. My brakes failed and I could have hit the cars in front of me and hurt my child, myself and others. It was terrifying. Problem has been confirmed by an independent service center. The warning lamps only appeared WHILE the issue was happening and my brakes failed to work properly.

Reported

Jul 2025

Incident date

Jul 2025

Mileage

Not provided

Outcome flags

None reported

The car stalls randomly and does not enter fail-safe mode. The dealer says it is the transmission but the transmission has never shuddered or hesitated. I am reading that these vehicles have intelligent power modules in the hybrid inverter that fail and can cause stalling. I feel like the dealership is working with Toyota to avoid addressing the actual problem. In the meantime I was sent home in a vehicle that continues to stall randomly and does not enter fail-safe mode.

Reported

Jul 2025

Incident date

Apr 2025

Mileage

Not provided

Outcome flags

None reported

I am writing to express my profound concern and disappointment regarding a recent, terrifying incident involving the brake system of my 2014 Toyota Prius. On Saturday, June 21, 2025, while driving with other passengers, my vehicle experienced a complete and sudden brake failure. Multiple warning lights illuminated on the dashboard, and despite my efforts, the brakes became unresponsive, making it impossible to stop the car. The sheer terror and helplessness I felt in that moment, with the very real potential for a catastrophic accident involving myself, my passengers, and other road users, is indescribable. Fortunately, through sheer luck and quick thinking, I was able to make an emergency stop on the side of the road, preventing any collision or injury. However, the emotional toll of that experience, the lingering stress, and the fear of a recurrence remain significant. I was subsequently informed that the cause of the failure was a leak in the brake accumulator. I am attaching the diagnosis and repair invoice. The necessary repairs were not completed until Wednesday, June 25th. This unforeseen and critical malfunction also necessitated the expense of a rental car for four days, adding to the financial burden and inconvenience. My frustration is compounded by the fact that this brake accumulator issue is a well-documented and known defect in Toyota Prius models, specifically affecting 2010-2015 vehicles. Toyota itself has previously issued a Technical Service Bulletin (TSB T-SB-0043-13) acknowledging this problem and offering warranty extensions for affected vehicles, typically up to 10 years or 150,000 miles. Despite this being a recognized safety concern, I was informed that my vehicle falls approximately eight months outside the 10-year warranty period, thus disqualifying me.

Reported

Jul 2025

Incident date

Jun 2025

Mileage

Not provided

Outcome flags

None reported

While braking on the interstate, this car threw error code C1391: Abnormal Leak of ACC PRESS. This is the brake system accumulator pressure - meaning lost all assistance to braking - it took a long time to slow down and come to a stop. Easily could have caused a serious crash had I been on a hill or coming up on stopped traffic. I did some research and found this is a KNOWN ISSUE with Toyota and SHOULD HAVE BEEN A RECALL! Toyota skirted the issue by offering customers that encountered the problem a CUSTOMER SERVICE PROGRAM where they would pay for a new brake pump and master cylinder. HOWEVER, Toyota put TIME and MILEAGE CONSTRAINTS ON THE PROGRAM, and it just so happened our car had exceeded those limits - so we had to pay full price for the repair of the 2 new brake parts - over $3,000! The 2014 Toyota PriusV that we bought new and had always serviced it properly was hardly worth that, but it was our only car, so we paid it. BUT will never buy another Toyota now - and NHTSA needs to fine Toyota for this poor brake system

Reported

Jun 2025

Incident date

May 2025

Mileage

Not provided

Outcome flags

None reported

Upon exiting the highway my brake system when engaged was completely unresponsive. I of course pushed down gently as would and upon realizing the brakes were not responding I started pounding on the brake pad. I had to ram the brake down for the vehicle to even slow. Thankfully no-one was in front of me at the light and I was able to pull into the nearest gas station having to ram brake to fullest extent to get the vehicle to stop moving. All lights within the braking system lit up including the Master Warning Light, Brake System Warning Light, ABS Warning light, and SLIP indicator as well as the warning siren. These warning lights did not come on til after* the brake system was engaged with failure*** NOT PRIOR. It was not indicative of an issue prior too, no former brake issue or warning lights. I turned the vehicle off and then back on again to see if the same lights still lit and issue was still malfunctioning. I called for a tow and had vehicle taken to the Adams Toyota Dealership (MO)The following diagnostic code C1391 was registered on my vehicle at dealership. Upon research (not disclosure) I found that the above code- C1391- "Brake booster and Brake Booster Pump Assembly" is a known issue that Toyota offered a Warranty repair from May 21-Nov 22' IF FAILURE Not a recall but a "if" brake system fails. Please see Customer Support Program 21TE01. I purchased vehicle in OCT 21 and was never informed, never provided this warranty letter, issue didn't show up on Carfax etc and I purchased directly from the Toyota Dealership. Upon research you will find that Toyota is currently in class action and individual lawsuits re this specific part failure with the above diagnostic code. They are denying replacement due the expired warranty time. The Parts should recalled* not just a "warranty issue" -unacceptable to leave buyers uninformed to such a major issue that can cause accident/death (IM PREGNANT I MAY ADD!) and unable to seek covered repairs unless it fails!

Reported

Jun 2025

Incident date

May 2025

Mileage

Not provided

Outcome flags

None reported

The vehicle stalled while driving 35 to 45 mph. Engine had no power but the brakes and power steering worked.

Reported

Jun 2025

Incident date

Jun 2025

Mileage

Not provided

Outcome flags

None reported

While driving my 2014 Prius V it stalled. I turned it off and restarted it. The yellow car symbol with an exclamation point lit up. I turned the car on and off again. The light went away and I was able to drive home. I was unable to get any OBD 2 codes on my personal reader. I changed the 12 V battery and thought this had fixed the stalling. Then it stalled again and repeated the same process. Though we were able to drove the car I had it towed to a dealership for safety reasons. The dealership pulled codes, cleared them, drove the car 20 miles, and were unable to reproduce the codes. I was told to return when the codes returned. It stalled again and now I am afraid to drive this car.

Reported

May 2025

Incident date

May 2025

Mileage

Not provided

Outcome flags

None reported

After 120K miles and 11 years of use, my Prius 3 brake booster pump failed while I was driving. The warning lights came on, including the ABS and brake lights. My brake felt strange, and I had to finish my drive to the dealership keeping a large driving distance so the brakes would work in time. I was advised that this was a result of a C1391 error and that the brake pump part is only covered under extended warranty for 10 years. The advisors at the dealership said it is extremely common for cars to come in with this problem just after the warranty period has ended. I have spoken to other Prius user who have complained of the same issue and are considering a class action lawsuit because this safety issue is so common.

Reported

May 2025

Incident date

May 2025

Mileage

Not provided

Outcome flags

None reported

While driving my dashboard lit up with Brake, ABS, and traction control warning lights. Brake pedal fell to the floor when pressed. I was then able to stop the car. I brought the car to a local auto parts store, where they were able to determine that the error code was C1391 brake accumulator pressure leak. I made an appointment and brought my car to my local Toyota dealer the next day. I was informed that the brake booster assembly, brake booster pump, and master cylinder would have to be replaced, at a cost of approximately $4035.00. I was informed that Toyota issued a Customer Satisfaction Program for this exact issue on my car. While my car has 129,000 miles and falls within their coverage range of 150,000, the car’s age of 11 years did not fall within their limit of 10 years. According to Toyota, this is a known failure and my only problem is that my brakes did not fail sooner. Toyota’s corporate office denied my appeal to cover the cost of the repair. The local Toyota dealer charged me $150 to read the code and confirm what the local Auto parts store was able to do for free.

Reported

May 2025

Incident date

May 2025

Mileage

Not provided

Outcome flags

None reported

Issue started with a noise sounding like a motor constantly trying to prime its self. Then while driving on freeway ABS light Brake light and traction control lights all came on. Took car to dealership and was given a $3700 bill to replace Brake Booster Master Cylinder and Brake booster pump. This is a known issue to Toyota and have offered an extended warranty 10 years or 150000 miles but not a recall. My vehicle is at 11 years and 123000 miles. This issue put my family in danger due to the threat of total brake failure.

Reported

Apr 2025

Incident date

Apr 2025

Mileage

Not provided

Outcome flags

None reported

Was driving down the road and the brakes stopped working and the the brake light the traction light and abs light came on. The brakes only worked if i put the pedal all the way to the floor after that. I checked online and found numerous other people have had this issue but no recall has ever been done. only nhtsa safety notices and a volunteered customer support program by toyota which was no longer being honored because I was passed the 10 year mark even though my vehicle was still under the 150k mile threshold by toyota. I wish your organization would force toyota to do a full recall on this. this is a dangerous safety issue involving a defective brake booster and master cylinder

Reported

Apr 2025

Incident date

Apr 2025

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2014 Toyota Prius. The contact stated while driving at an undisclosed speed, the vehicle failed to stop or decelerate as intended while the brake pedal was depressed. The ABS and service brake warning lights were illuminated. The contact added brake fluid; however, the failure persisted. The vehicle was taken to a local dealer where it was diagnosed; however, the cause of the failure was not yet determined. The vehicle was taken to a local Auto Zone, where it was scanned with an OBD2 scanner and DTC: C1391; was retrieved. The vehicle was not repaired. The manufacturer was notified of the failure and the contact was informed that the failure was related to an unidentified Toyota Campaign; however, the warranty had expired. The failure mileage was approximately 92,802.

Reported

Apr 2025

Incident date

Mar 2025

Mileage

Not provided

Outcome flags

None reported

The brake booster assist assembly failed, causing a leak of brake fluid, im told that over time this failure can lead to a break failure. I contacted Toyota. They informed me that there was an assistance program for fixing this defect. However it expired in 2024? If they know about a defect why did the program expire? This is a safety issue.

Reported

Apr 2025

Incident date

Apr 2025

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2014 Toyota Prius V. The contact stated that while driving at an undisclosed speed, the brake pedal was depressed and traveled to the floorboard. The contact engaged the parking brake to stop the vehicle. The vehicle was able to be restarted. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 100,000.

Reported

Mar 2025

Incident date

Mar 2025

Mileage

Not provided

Outcome flags

None reported

Failed Brake booster and pump assembly, confirmed by Toyota service. Warning lights turned on all at once: AEB, skid control and brake light. Estimated cost to repair is $3,000.

Reported

Mar 2025

Incident date

Mar 2025

Mileage

Not provided

Outcome flags

None reported

Break pump , break pump assembly, Break actuator. Vehicle has only 91k miles it. Breaks feel rough and slower to react. Too worried to use vehicle. Dealership said it’s a very well known issue and wanted $5800 to fix it.

Reported

Mar 2025

Incident date

Feb 2025

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2014 Toyota Prius V. The contact stated that while driving at approximately 35 MPH, the brakes and ABS warning lights illuminated the instrument cluster. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that the brake booster and brake booster pump assemblies needed to be replaced. The contact was informed about the Customer Satisfaction Program: 20TE07 (Service Brakes, Hydraulic); however, the vehicle was no longer covered under the warranty extension. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was 133,838.

Reported

Mar 2025

Incident date

Feb 2023

Mileage

Not provided

Outcome flags

None reported

The brake booster assembly failed at odometer reading 92,463. Prior to diagnosis, several dashboard lights turned on, and the vehicle's braking was negatively affected. The failed brake booster assembly problem was diagnosed, confirmed and repaired by an ASE certified repair technician on 3/14/2024. Toyota refuses to reimburse me for this expensive repair ($2,375.97.) Toyota has operated in an unethical way by not issuing a true RECALL for this known defect. Its "Customer Support Program Bulletin" is full of unclear instructions and vague definitions of what is required for reimbursement. Toyota refuses to reimburse me for even a portion of this expensive repair. NTHSB should force Toyota to issue a recall and reimburse all affected customers who incurred this $2,000 - $3,000 repair.

Reported

Feb 2025

Incident date

Mar 2024

Mileage

Not provided

Outcome flags

None reported

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Reported

Feb 2025

Incident date

Nov 2024

Mileage

Not provided

Outcome flags

None reported

Brake booster system failed and needs replacement. Was told that there was a recall but it expired in 2024 and my car is not covered. Cal has 102000 miles on it.

Reported

Feb 2025

Incident date

Feb 2025

Mileage

Not provided

Outcome flags

None reported

Toyota did implement an extended service warranty that ran through June of 2024 for a KNOWN issue with the ABS system. The problem was identified in a number of vehicle models, multiple recalls were made starting in 2019, and the Prius V (mine is a 2015) was excluded from that recall. After a road trip from Phoenix, AZ to Albequerque, NM, I started noticing a "farting" noise while braking. The extended service program had closed the month prior. I had the car inspected at my local AAA service department prior to leaving. The problem got worse, the braking is squishy and inconsistent, so I took it back to the shop. They've told me that my ABS system is not functioning and needs to be replaced. I called a dealership about the issue, and they said they can't honor the warranty unless Toyota does. They gave me the contact number for Toyota's Customer Care line, and I requested an appeal or exception which was denied. I have 85,000 miles on the car. It hasn't even rolled over yet. I don't drive very much and didn't drive really at all for almost 3 years between 2020 and 2023 since I was working online. There is nothing I could possibly have done to contribute to this issue, so it is CLEARLY a manufacturer error. Any issue with brakes poses a serious threat to safety and must be taken seriously. The repair cost is over $5,000, and MOST households cannot absorb that cost. If more vehicles are having similar issues, then I GUARANTEE you that there are more cars on the road right now with unstable brake systems that may fail at crucial moments. I have an appointment on Monday 2/10/24 with a the dealership service center. I have no idea if I'll be able to cover the cost of the repairs.

Reported

Feb 2025

Incident date

Jul 2024

Mileage

Not provided

Outcome flags

None reported

Failed brake booster on 2014 Toyota Prius due to Customer Support Program Bulletin POL18-03 See attached documents sent to Toyota. They would not reimburse the ~ $3,000 repair to the brake booster which was in the Customer Support Program Bulletin POL18-03 Almost had an accident and the repair was done within the repair window.

Reported

Feb 2025

Incident date

Dec 2023

Mileage

Not provided

Outcome flags

None reported

Approximately 2 months ago my brake booster and accumulator pump failed looked up recalls on this issue my vehicle falls in the recalled model year was wondering if it is just overlooked because it has not had any problems with it in the past only 76000 miles on vehicle due to low mileage I believe it should not have failed it has a internal leak had vehicle scanned code C1391 was detected for abnormal leak of ACC press. Thank you For any assistance you can provide for me unable to afford repairs at this need vehicle for transportation to and from work again. Thank you

Reported

Jan 2025

Incident date

Nov 2024

Mileage

Not provided

Outcome flags

None reported

The car began to jerk, made knocking noises, miss fires on cylinder 1, 2 and 4, coolant leakages, oil leakages, compression issues and the check engine light keeps turning on and off. My safety has been put into play because, the car would jerk many of times as it would want to stop as I was driving. I would then have to pull over and call for assistance. Per the Toyota service advisor he recommended that I needed a new rebuilt engine kit. The extended warranty company stated that I was negligent with my car and denied my claim and refused to pay for the 10 grand motor and I had to tow my car to another shop. However, the car at this time is still experiencing the same malfunctions. The warning lamps are still showing at this present time and prior to the failure of problem. This car meets the "Lemon law guidelines, However, I have been informed otherwise that I don't meet the criteria for lemon law due it being expired sometime last year in Oct of 2024. As stated this is a lemon car.

Reported

Jan 2025

Incident date

Aug 2023

Mileage

Not provided

Outcome flags

None reported

Got code C1391, a common issue with the Prius. Brake Booster Assembly is defective due in no part to owner/driver of vehicle. This creates a serious safety issue with braking. Traction control light, brake light, and ABC light are all on and repair is ridiculously expensive.

Reported

Jan 2025

Incident date

Dec 2024

Mileage

Not provided

Outcome flags

None reported

The Head Gasket failed on my vehicle, and began to burn coolant and overheat my engine. Upon description of the issue, a dealership mechanic was able to diagnose the issue. The sudden failure of my vehicle due to overheating while driving was extremely risky, and I had no indication that the issue was a head gasket until a dealership mechanic was able to look at my vehicle after being towed. I had taken my vehicle to a third-party mechanic, and they could not tell me why my vehicle was burning coolant, but provided a temporary Stop-Leak fix that did not hold. The first appearance of the Check Engine light was about 9 months ago, was assumed to be the spark plugs, which I had replaced, but then my coolant light started coming on with the check engine light for about a week before the engine overheat incident. The vehicle has been inspected by a Toyota Hybird Mechanic. No other inspections have been done. My safety and other's safety was put at-risk as my steering, speed control, and speed monitoring systems immediately shut off once the system detected an overheat, making it difficult to pull over safely and slowly to address the issue/call a tow truck. I required physical assistance from another motorist to move my vehicle off the road to allow others to pass.

Reported

Dec 2024

Incident date

Dec 2024

Mileage

Not provided

Outcome flags

None reported

I started noticing the ghosting or tripling of light issue in my windshield. I mostly noticed this during night times, I initially thought I was just tired and my eyes were tired, but I’ve been able to photograph it and verify my experience with other people. This effect is horrible for my eyesight and makes all lights at night so blurry I cannot drive safely.

Reported

Dec 2024

Incident date

Dec 2024

Mileage

Not provided

Outcome flags

None reported

Apparently there is a known defect on the brake actuator/master cylinder/booster on the 2014 Prius that would have been addressed if the car had been driven for less than 10 years or 150,000 miles. We purchased our car in April 2014 and the part just failed yesterday at only 126,000 miles. We understand that there is a pending class action suit (or perhaps one that was settled) but do not know how to become a member of it. It seems as if they knew that the part was defective, but did not offer to do a voluntary recall and remediate this before a failure, they should have, but instead, now we have a $3400 repair bill. Requesting assistance in evaluating whether there was negligence and or liability for them not addressing this issue in a timely manner.

Reported

Dec 2024

Incident date

Dec 2024

Mileage

Not provided

Outcome flags

None reported

Brake Actuator Valve Wear all lights relating to brakes are on, Dec. 12th 2024. The warranty for this expensive fix ended March, 2024 or 150k miles, there are only 106k miles on the vehicle. Something that is such a safety hazard SHOULD not have a date. We are experiencing unexpected loss of brake power while driving, accompanied by multiple dashboard warning lights, so we are unable to drive to the Toyota Dealership to have it scanned for issues. Toyota has advised us NOT to drive the vehicle, and we live 40 min from the nearest dealership. We bought the car from a Toyota dealership used, and they should have fixed this before selling the vehicle. Complete negligence and a huge safety issue. We only ask that they warranty be extended for the entire year of Dec. so that we can get this fixed asap.

Reported

Dec 2024

Incident date

Dec 2024

Mileage

Not provided

Outcome flags

None reported

Brake light and several other lights suddenly came on. The brakes became spongy. Taken to a repair place close enough for walking for diagnostic work. It showed that the brake booster needs to be replaced. There was a campaign for this problem, so Toyota knows that it is/was a problem. That campaign has apparently ended. This is a very expensive repair on a car that I expected to use the rest of my life. There was no warning by the dealership from which I purchased the car that this was a possible pending problem.

Reported

Dec 2024

Incident date

Dec 2024

Mileage

Not provided

Outcome flags

None reported

Yesterday, while driving on the interstate, all of the brake related warning lights on my dashboard lit up- ABS, traction control, brake, caution)- causing me concern, so I looked for the next exit. While exiting and slowing, I noticed my brakes felt different and were not as responsive as usual. I called my mechanic and cautiously headed to his shop a couple of miles away. Today, I met with him and found out that there is a leak in the brake booster line, but the extent of the problem is yet to be determined. I immediately did an internet search for my model year and found that there was a safety campaign on other Toyota hybrids for that year, so I called the Toyota customer service number. I was told that my vehicle had an extended warranty for the brake booster, but it expired 9 months prior, 10 years post purchase, The rep has escalated my issue but I will have to wait to see if someone with more authority can potentially give me an additional extension. Meanwhile, my car is not drivable, as the brakes could fail at any moment. In my estimation, this should not be a time limited coverage, but an actual recall covered by Toyota. This is not normal brake pad rotor wear and tear, but a known issue with the assembly system and a true safety hazard that one cannot foresee without experiencing minor to catastrophic failure of the system.

Reported

Nov 2024

Incident date

Nov 2024

Mileage

Not provided

Outcome flags

None reported

The brake master cylinder and brake booster failed. It is available for inspection upon request. My safety was put at risk as braking distance increased significantly. The problem has not yet been confirmed by a dealer or independent service center. The vehicle has not yet been inspected. The warning lights appeared upon failure. Brake warning light, traction control light, and ABS light appeared. Prior to complete failure, the brake booster would cycle on after opening the door and would then cycle every few seconds for 10 minutes or so after parking.

Reported

Nov 2024

Incident date

Nov 2024

Mileage

Not provided

Outcome flags

None reported

Something felt wrong with the brakes for many years, but mechanics checked the brake pads and rotors and said they were fine on multiple service visits. I had multiple close calls during quick stops on highways, I though I just needed new tires. I then started to hear a whirring buzz noise become more and more frequent. I researched what it was and found on reddit that there was customer support program ZJB to repair failed brake accumulators, which affects hundreds of thousands of these cars. The problem was that my brakes were only in the process of failing rather than being fully failed enough to send codes and light up the dashboard, which is the only way the customer support program would cover the $4,000 repair. The failure finally happened when I was three hours from home and had half the braking power as usual and had to limp the car home for fear of the brakes going completely out. I can't believe Toyota is letting this many people drive around with a potentially catastrophic brake issue.

Reported

Nov 2024

Incident date

Oct 2024

Mileage

Not provided

Outcome flags

None reported

I was driving on the highway during rush hour when a loud beeping noice began. My 15 year old cousin was in the passenger seat and began to check for the source of the beeping. I was driving 55mph on a busy highway with no safe shoulder stop. As I was preparing for the exit, the brakes suddenly became dysfunctional. The pedal was extremely hard to press down and I found myself unable to slow down the car in enough time to avoid hitting upcoming traffic. I found myself in an urgent, life threatening situation and needed to pull over into the emergency lane located before the exit. I could not just consider my safety, but that of other drivers and my 15 year old passenger. She is traumatized. I was able to get the car to stop with my entire weight on the pedal. Once stopped, I scrambled to find the reason for the sudden brake problem, checking if anything rolled under my foot, if the floor mat was loose, if the gear shift was wrong, even checked if I accidentally hit the emergency brake. Nothing was out of place. No new dash lights. I looked in the manual. I had no information. I went to jiffy lube and they performed a diagnostic test and informed me they are unable see all the codes with hybrids because Toyota’s computer can only see Just in August I went to Toyota for my oil change, nothing was said about the brakes needing to be fixed and how repairing them now would prevent the failure of the accumulator pump system. If I had known paying $400-$500 for the brakes then would prevent having to pay $3000 to replace a pump. I would have made that sacrifice and went outside of my budget. This is paramount information that should be disclosed to all Toyota customers that take their car in for care and pay. After further research, I STRONGLY BELIEVE TOYOTA EMPLOYEES PURPOSELY WITHHOLD INFORMATION FROM THEIR CUSTOMERS NOT INFORMING CONSUMERS ABOUT AVOIDING PUMP FAILURE AND THE NEED REPAIR THEIR BRAKES AND IS COMPLICIT IN ANY INCIDENT CAUSED BY PUMP FAILURE MAY CAUSE.

Reported

Oct 2024

Incident date

Oct 2024

Mileage

Not provided

Outcome flags

None reported

Without warning, my brakes completely stopped working and I was fortunate enough to be somewhere I was able to pull over without being killed. Toyota is aware of this issue, but put a 10 year timeline on the complementary repair, which is totally unacceptable, as owners were not notified directly about this program, therefore how could we know it existed, was a problem, and to go get it fixed within their arbitrary deadline? I could have died losing brakes on the freeway, or even could have killed or injured others. This is a known, and severe safety hazard, and Toyota is not taking responsibility. It is unconscionable. Hoping for a class action lawsuit. It was a $5500 repair in California, which was almost the value of the car. Absolutely brutal and horrendous business practices from this company. Shame on them. I hope this agency NHTSA will add this report to the pile of others who have reported this, and actually take meaningful action for those of us who have been put at risk, and ripped off in the process.

Reported

Oct 2024

Incident date

Oct 2024

Mileage

Not provided

Outcome flags

None reported

Car was diagnosed at a Toyota dealership with a brake booster issue reading code 20TE07 after my vehicles brakes suddenly would not work and the car continued to jolt forward. The brakes wouldn’t stop the car. According to Toyota, my vehicle is three months outside of the warranty period but under the covered mileage so we are left to repair this defect ourselves. This was a very dangerous situation and could have cost us and our children our lives instead of just the $4800 repair cost. This has happened to both of our Prius’s so this is not a rare issue. Toyota needs to have a plan for these parts failing suddenly and they should all be recalled for safety in my opinion. The experience was very scary and we had zero control over the vehicle when the brakes suddenly went out. Where do I join the class action lawsuit?

Reported

Oct 2024

Incident date

Oct 2024

Mileage

Not provided

Outcome flags

None reported

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2010-2014 Toyota Prius and 2012-2014 Toyota Prius V vehicles. 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: If the hybrid system shuts down unexpectedly, it can increase the risk of a crash.

Remedy: Toyota will notify owners, and dealers will update the software for the motor/generator control electronic control unit (ECU) and the hybrid control ECU as necessary, free of charge. The recall began January 22, 2019. Owners may contact Toyota customer service at 1-888-270-9371. Toyota's number for this recall is J0V. Note: The software updates in this recall are needed even if the vehicle had the software previously updated under recalls 14V-053 or 15V-449.

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 model year 2012-2014 Prius V vehicles manufactured August 22, 2011, to June 30, 2014. A component within the hybrid inverter assembly may overheat, causing the hybrid system to reduce output power allowing the vehicle to only drive a short distance. In some circumstances, the hybrid system may shut down causing the vehicle to stop while being driven.

Risk: The vehicle may enter a fail-safe/limp-home mode that limits the drivability of the vehicle. The hybrid system could also shut down completely resulting in a vehicle stall, increasing the risk of a crash.

Remedy: Toyota will notify owners, and dealers will update the software for the motor/generator control electronic control unti (ECU) and the hybrid control ECU, free of charge. The recall began on July 30, 2015. Owners may contact Toyota customer service at 1-888-270-9371.

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.