MyCarTSB

2014 Toyota Prius Brakes Problems

74 owner-reported brakes complaints from NHTSA data

74
Complaints
7
Crashes
Jan 2018Dec 2023
Date Range

Data sourced from NHTSA public database. For informational purposes only. Always consult a qualified mechanic.

Owner Complaints (74)

criticalSERVICE BRAKES
Filed: Mar 2026

Your brake booster and pump assembly may fail, causing the brake pump to cycle repeatedly every 13 seconds—a sign of an internal pressure leak that can lead to loss of power-assisted braking. This is a serious safety issue because the brakes could fail without any warning lights or error codes alerting you first. Fixing this typically requires replacing the brake booster and pump assembly, which is a labor-intensive repair.

NHTSA #: 11726119
criticalSERVICE BRAKES, HYDRAULIC
Filed: Mar 2026

Your brakes failed to slow down the car when you pressed the brake pedal while driving, and your ABS warning light came on occasionally. A mechanic found that your brake master cylinder, brake booster, and brake lines all needed replacement. This happened at around 152,000 miles, though the issue may be related to a recall that didn't apply to your vehicle's VIN.

NHTSA #: 11724167
criticalSERVICE BRAKES
Filed: Mar 2026

Your brake booster and accumulator system failed suddenly, causing your brake pedal to feel soft and spongy with reduced braking power. Multiple warning lights appeared (ABS, traction control, and brake warning), and your electric brake pump started cycling frequently. This is a known issue affecting 2012–2014 Prius v vehicles, and the repair will likely involve replacing the brake booster and accumulator assembly.

NHTSA #: 11722125
criticalSERVICE BRAKES
Filed: Feb 2026

Your brake booster/accumulator has failed, which means your brakes may not work properly or feel spongy when you press the pedal. This is a known issue on 2010-2015 Prius models that Toyota extended warranty coverage for, but your vehicle is just beyond that extended coverage window at 108k miles. The repair costs around $4,000 and you won't be able to drive safely until it's fixed.

NHTSA #: 11716906
criticalSERVICE BRAKES
Filed: Feb 2026

While driving on the highway, your brake warning light, ABS light, and traction control light all came on at the same time. Your brakes became stiff and didn't stop the car as quickly or effectively as normal. The braking performance returned to normal once the lights turned off.

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NHTSA #: 11715358
criticalSERVICE BRAKES
Filed: Jan 2026

Your brake warning light came on along with your ABS, tire pressure, and traction control lights all at once. You noticed your brakes are losing pressure and hearing a strange noise coming from under the front driver's side. The fix will likely involve inspecting your brake system for leaks, checking brake fluid levels, and potentially replacing brake components or hoses.

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NHTSA #: 11714327
criticalSERVICE BRAKES
Filed: Jan 2026

While driving on the freeway, your ABS and brake warning lights came on with a beeping sound, and you lost all braking ability. Your car eventually slowed and stopped on its own after about two miles. A mechanic confirmed this was a known Toyota issue covered under warranty up to 150,000 miles, but your car had 165,000 miles at the time. The repair will likely involve diagnosing and replacing faulty brake system components, possibly including the ABS module or brake actuator.

NHTSA #: 11711583
criticalSERVICE BRAKES
Filed: Nov 2025

Your brake system is showing warning lights for brakes, ABS, and traction control, and a mechanic confirmed the brake booster and pump assembly has failed. Toyota had previously acknowledged this as a known safety issue under a customer support program, but your coverage expired because you didn't receive Toyota's notice before the deadline. The repair will likely involve replacing the brake booster and pump assembly to restore proper braking function.

NHTSA #: 11696950
criticalSERVICE BRAKES
Filed: Sep 2025

Your brakes are locking up and causing the car to lunge forward unexpectedly. When you applied the brakes while driving on the highway, they failed to respond and you lost control of your vehicle's speed. You report being afraid to drive the car daily due to this safety concern, and Toyota indicated there was an extended warranty for this issue that has since expired. The repair is quoted at over $3,000. Fixing this will likely require a complete brake system inspection and possible replacement of brake components like the master cylinder, calipers, or the brake control module.

NHTSA #: 11689489
criticalSERVICE BRAKES
Filed: Aug 2025

Your brake actuator failed, causing your ABS light, brake light, and traction control light to all come on at once. Because your Prius uses the braking system to recharge the hybrid battery, a broken actuator could eventually leave you stranded. Your brakes also became less responsive, making highway driving unsafe. The fix will involve replacing the brake actuator assembly.

NHTSA #: 11681994
highSERVICE BRAKES
Filed: Jan 2026

Your Prius's electric brake booster pump is making frequent cycling noises inside the cabin, especially in cold weather, and you've noticed a faint electrical odor outside the vehicle. Your brakes still work normally and no warning lights have appeared, but the noises and smell suggest the pump may be under stress. A dealer should inspect the brake booster pump to determine if it needs repair or replacement before a potential failure occurs.

NHTSA #: 11709692
highSERVICE BRAKES
Filed: Sep 2025

Your ABS light, traction control light, and brake warning light all illuminated at the same time. You report that Toyota has acknowledged this as a known issue and previously offered repairs, but has since stopped. Despite a 2023 inspection showing no actual brake problems, you weren't notified of any recall or need for service. Getting these warning lights to turn off may require Toyota to reprogram or replace brake system components.

NHTSA #: 11689448
highSERVICE BRAKES, HYDRAULIC,TRACTION CONTROL SYSTEM
Filed: Aug 2025

Your ABS and traction control warning lights came on at 150,000 miles. The dealer said you needed a brake master cylinder, but a certified mechanic found the brake booster had failed instead and replaced it. However, the warning lights returned the next day. The mechanic cleaned the hydraulic valves and tried again, but the problem persisted.

NHTSA #: 11680048
mediumSERVICE BRAKES
Filed: Aug 2025

Apparently Toyota knows of a recurring problem with the brake actuator. I took my Toyota Prius to the dealer for an unrelated recall issue that they repaired and I asked them what the sound was that I kept hearing every 10 seconds or so. The told me it is the brake actuator, but did not seem concerned at all that I get it repaired right away. They did quote me a very high price to have it fixed by them. I have chosen to take it to my mechanic for repair. In the mean time, I decided to research this on the internet and discovered that it is a known problem by Toyota and there is a class action suite filed on them. I want Toyota to pay to have it fixed! I fear for my life and lives of others with the same issue.

NHTSA #: 11680117
mediumSERVICE BRAKES
Filed: Aug 2025

I was told that my Brake Booster and Brake Booster Pump Assembly needed replaced. I had specifically asked my dealership in the past if there were any issues with my car and was told that there was nothing, which was untrue. I called Toyota and was told that I was mailed something back in 2018, but I do not remember receiving it. Now I am told that this has expired. I wanted to know if I had any recourse or extension time on this program 21 TE01. I am afraid that my brakes will not work, as the lights go off and on. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA #: 11679204
mediumSERVICE BRAKES
Filed: Aug 2025

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)

NHTSA #: 11678383
mediumSERVICE BRAKES
Filed: Jul 2025

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.

NHTSA #: 11671120
mediumSERVICE BRAKES, AIR
Filed: Jul 2025

See Attached Letter

NHTSA #: 11670687
mediumSERVICE BRAKES
Filed: Jun 2025

2014 Toyota Prius C with 220k miles. Four warning lights came on while driving. Brakes became not responsive unless you press down very hard. Regenerative braking, went away. The Brake pump can be audibly heard turning on every few seconds.

NHTSA #: 11665317
mediumSERVICE BRAKES
Filed: May 2025

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.

NHTSA #: 11662237
mediumSERVICE BRAKES
Filed: May 2025

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.

NHTSA #: 11659668
mediumSERVICE BRAKES
Filed: Apr 2025

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.

NHTSA #: 11657656
mediumSERVICE BRAKES
Filed: Apr 2025

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

NHTSA #: 11655290
mediumSERVICE BRAKES, HYDRAULIC
Filed: Apr 2025

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.

NHTSA #: 11653168
mediumSERVICE BRAKES
Filed: Apr 2025

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.

NHTSA #: 11652740
mediumSERVICE BRAKES,FORWARD COLLISION AVOIDANCE
Filed: Mar 2025

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.

NHTSA #: 11649889
mediumSERVICE BRAKES
Filed: Feb 2025

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.

NHTSA #: 11645631
mediumSERVICE BRAKES
Filed: Feb 2025

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.

NHTSA #: 11641282
mediumSERVICE BRAKES
Filed: Feb 2025

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.

NHTSA #: 11641038
mediumSERVICE BRAKES
Filed: Jan 2025

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.

NHTSA #: 11635057
mediumSERVICE BRAKES
Filed: Dec 2024

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.

NHTSA #: 11630728
mediumSERVICE BRAKES
Filed: Nov 2024

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.

NHTSA #: 11627019
mediumSERVICE BRAKES
Filed: Nov 2024

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.

NHTSA #: 11625824
mediumSERVICE BRAKES
Filed: Nov 2024

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.

NHTSA #: 11624998
mediumSERVICE BRAKES
Filed: Oct 2024

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.

NHTSA #: 11621414
mediumSERVICE BRAKES
Filed: Oct 2024

My 2014 prius experienced a failing brake booster actuator assembly. I was driving when suddenly my traction control light came on and my brake pedal turned mushy. I pulled over to a parking lot and put my vehicle in park. As soon as I did this, the ABS and parking brake light both turned on. I had the vehicle towed to the Toyota dealership. They diagnosed the problem as an internal leak in the brake booster actuator assembly. This is a common problem with these vehicles, but instead of Toyota issuing a recall, they only did an extended warranty coverage of which my prius didn't fit the parameters. Now I am stuck with a vehicle that is unsafe to drive and a repair estimate of $3,900 because of one of their parts failing. This should clearly have been made a recall with the volume of prius owners experiencing this problem. What a disappointment after having 3 Toyotas for many years.

NHTSA #: 11619899
mediumSERVICE BRAKES
Filed: Oct 2024

On [XXX] my brakes failed while driving, (brake booster and actuator) moving at 25 mph, all of a sudden lights ABS and brakes indicator light started flashing and beep. I was approaching a yellow light and attempting to slow down, my foot went to to floor and the were NO BRAKES. I used the EMG brake slow down me pulled into an empty parking lot. My vehicle is available for inspection at request. My safety was was put at risk due to having no control and coming very close to crashing into another car putting that driver at risks as well, but was blessed I was able to avoid an accident. This problem has been confirmed by Phillips Toyota in Leesburg FL #(352)728-3020. The vehicle components have not been inspected by others besides the dealer. I am 2 months over the 10yr customer support program at 102k miles. I have been complaining for the past YEAR to the dealer regarding strange noises like chirping, air deflating when pressing brakes, constant buzzing sounds from system even when car is off, and being propelled forward when going over gravel or railroad track surfaces of the ABS light goes on. This is on record and each time I’d ask, they’d mention it is the brake booster going but because there was no indicator lights or code coming up, they were unable to do anything. My last service in may 2024, I requested a diagnostic on the brake system, which I paid extra for, knowing the 10yr program was about to be expired in July. The dealer found no codes and assured me it was safe to drive and that if I were to see those warning light come on, that I was to drive the car straight to the dealer to inspect. Well, long story short, the lights came on, and immediately the were NO Brakes and I was completely out of control with no time to drive it safely to the dealer. I had it towed to the dealer and they quoted me $3000 to repair brake booster/actuator. I am working with Toyota corporate for compensation. This is a major safety issue that should be a RECALL! INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA #: 11619508
mediumSERVICE BRAKES
Filed: Oct 2024

The braking system is failing with the following codes I tested with the BlueDriver scanner. Code TypeCodeDescription ABS CodesC1241Low or high power supply coltage ABS CodesC1391Abnormal leak in accumulator Main BodyB1206P/W Master SW ECU Communication Stop Main BodyB2321D-Door Motor ECU Communication Stop Main BodyB2430LED Headlight LH Entry and StartU0142Mainbody Ecu Communication Circuit Entry and StartU0155Lost Communication with Instrument Panel Cluster Control Module The car is available for inspection. This puts the drivers, myself and fiance, at risk of catastrophic collision in the event that the brakes fail while driving. I will call Toyota to obtain a replacement of the system that has occurred with many other drivers. The vehicle has not been inspected by manufacturer yet but it is important to know that this is a serious problem that could kill people. The problem was identified when warning lights came up on the dashboard but there is also a sound coming from the brake actuator that shows a problem. The problem is due to manufacturer error, I have driven the vehicle normally.

NHTSA #: 11619377
mediumSERVICE BRAKES
Filed: Oct 2024

So my wife is pulling into our driveway with my little ones and notices the ABS, traction control and Brake light come on. I then had the vehicle looked at by a local Toyota dealership and they tell me I'm getting code C1391 and that it's a known issue. They then tell me I'm out of my extended customer support warranty time frame and I will have to pay. According to NHTSA this is a known defect on this vehicle and it affects more than 100k Toyota Prius vehicles. So basically, we've been driving around in a vehicle that the brakes may fail at any moment and potentially kill us all but is only addressed by the manufacturer when the known failure occurs. Even then, they only address it if the error occurs during their set time frame. It seems this has been brought to NHTSA's attention on a few occasions and nothing has been done. I would think brakes are something that warrants a recall on a known defect. Thankfully my wife and kids weren't doing 70mph down the highway when the brakes all of the sudden stopped working.

NHTSA #: 11617482
mediumSERVICE BRAKES, HYDRAULIC
Filed: Sep 2024

The contact owns a 2014 Toyota Prius. The contact stated while driving at an undisclosed speed, the brake pedal was depressed with several unknown warning lights illuminated. The vehicle was towed to the dealer to be diagnosed. The contact was informed that the brake master cylinder and the brake booster pump assembly had failed and needed to be replaced. The manufacturer was not made aware of the failure. The failure mileage was approximately 82,000.

NHTSA #: 11616706
mediumSERVICE BRAKES
Filed: Sep 2024

This vehicle lost braking assist while in motion on a well known problem from TOYOTA. There has been class action lawsuits on this very fact. Toyota issued a customer service warranty for vehicles that have less than 150,000 and filed before March 2024! My car has 127k and failure was Sept 9 out of the warranty. I understand that there is a line if the sand however this needs to be a recall as it effects so many vehicles and it is dangerous! I am asking you urge them to make a recall for this! I have paid for this repair and am furious but I had to do it!

NHTSA #: 11614051
mediumSERVICE BRAKES
Filed: Sep 2024

ABS actuator failed in April of 2023 after more than a year of constant whirling, which my mechanic didn't diagnose until after my dashboard lit up with errors. The issue was diagnosed by AAA mechanics after the dashboard warning lights lit up, with a $4,000 cost to repair. Brakes are spongy, car is rarely driven at this time. We were told that the brakes would continue to work, but the ABS system would not. Now the vehicle beeps constantly when driving, which appears to mean the brakes could fully fail at any time. Based on subsequent research, Toyota was quietly fixing the ABS acuator issue until last year, but it was not offered when my vehicle was brought in last year during another recall. When it failed the car was under 10 years and 150K.

NHTSA #: 11612147
mediumSERVICE BRAKES
Filed: Aug 2024

My car started exhibiting signs of a known brake booster/brake systems failure for Priuses in the 2010-2015 range. These include the ABS, brake system, and skid/traction lights coming on and a 3-5 cycling whirring noise. The brake sensitivity is also altered. This happened suddenly today. I checked the battery voltage (normal), so this is not causing the issue. After investigating online, I have discovered that many consumers have experienced the same issue and are being denied a recall/repair coverage by Toyota. Today, I am reaching out to Toyota to see if the replacement/repair, which should be in the range of $3-4k will be covered by Toyota. According to numerous other Prius owners online, this issue is being denied by Toyota for coverage, even though it is something they are fully aware of. This is unacceptable and dangerous on their part. My vehicle has 110k miles, was leased used last year, and has not had any issues otherwise. I am up to date with all routine maintenance, including getting my pads replaced and rotors maintained last year as well as new tires.

NHTSA #: 11609232
mediumSERVICE BRAKES
Filed: Aug 2024

Brake warning lights illuminated and loud beeping for the first time. Took the car to local repair shop who advised me to take it to the dealership. Dealership indicates that R&R Brake Booster assembly with master cylinder and brake booster pump assembly need to be replaced at over $3100 and brakes are at risk of failure. I researched and found the NHTSA Customer Support Bulletin - [XXX] indicating this known issue. The support period expired in March and mileage has now exceeded the limit for support. Though I have had the car in the dealership for service many times, this was never brought to my attention. The dealership advised me to contact Toyota. Toyota then advised me to contact NHTSA about the problem. Further research indicates ongoing problems with this issue that have not been resolved - [XXX] should have issued a recall for this important safety issue. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA #: 11608304
mediumSERVICE BRAKES
Filed: Aug 2024

Brake Booster Assembly in my 2014 Toyota Prius began cycling more often than usual in December 2023. By March 2024 it began cycling approximately every 30 seconds. Randomly while stopped or parked, there would be four warning lights illuminated on the dash - SLIP indicator, both Brake System Warning Lights - the word "Brake" and the "((!))", and ABS Warning Light. By June 2024, I would also randomly lose stopping power & a great distance was necessary to stop the vehicle. I took the Prius into my local Toyota Service Center where it was recommended both the Brake Booster Pump and Brake Booster Actuator be replaced. When I brought up Toyota's Customer Support Program for which my Prius is eligible in terms of age, mileage, and symptoms, I was told a DTC is required to verify the issue. According to this local Toyota dealership, the Master Tech confirming the issue and recommending replacement is not sufficient. Since the lights were illuminated, I asked why there was no stored DTC. They responded "Well, I'm not sure" and continued to reference the required DTC. This brake assembly is an issue that Toyota has acknowledged, but fails to accept full responsibility by issuing a recall. This gross negligence by a vehicle manufacturer.

NHTSA #: 11607559
mediumSERVICE BRAKES, HYDRAULIC
Filed: Aug 2024

The contact owns a 2014 Toyota Prius. The contact stated that while driving at an undisclosed speed and attempting to stop the vehicle, the brake pedal was stiff and would not depress easily, requiring exhaustive effort to depress and bring the vehicle to a complete stop. The brake, traction control, and ABS warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a brake booster and brake pump assembly failure. The vehicle was repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was 116,000. The VIN was not available.

NHTSA #: 11607341
mediumSERVICE BRAKES
Filed: Aug 2024

I lost the brakes. The Brake actuator failed. I was able to swerve around traffic to avoid a collision and get the car towed home. No warning lamps until it failed. The brake actuator was replaced and I saved the old, defective component.

NHTSA #: 11606273
mediumSERVICE BRAKES
Filed: Jun 2024

The brake booster and master cylinder failed on my Prius. The diagnostic code is C1391 Abnormal leakage in accumulator, which is a code covered by Toyota’s prior recall on this vehicle.

NHTSA #: 11596246
mediumSERVICE BRAKES
Filed: May 2024

Drove car to work one morning and it was VERY difficult to brake almost causing an accident. Brought it into the Toyota shop and they said this code came up: DTC code C1391: Abnormal leak of accumulator pressure ,recommending to replace brake booster and brake booster pump assembly internal malfunction of components.The necessity of its routine replacement is vital as an old or malfunctioning unit leads to decreased braking performance and ultimately brake failure. They told me that there was a program offered to customers where they would replace this known issue, but I'm 2 months outside of this so the issue is no longer covered under Toyota. The fact that this is a known issue that Toyota does not want to recall is ridiculous and now they want customers to pay for it.

NHTSA #: 11591042
mediumSERVICE BRAKES
Filed: May 2024

Noticed a whirring/hydraulic sound that occurred every 5-10 seconds. Could only hear sound if no music was playing and not driving at highway speeds. Sound was noticeable upon parking or exiting vehicle. Only noticed sound because it occurred more frequently than usual. Spouse who is hard of hearing could not hear sound at all. My understanding of sound was that it was normal for vehicle, however, within the time span of approximately 2 weeks, sound became more frequent. Researched noise, and found it was the brake booster assembly pressurizing. Took vehicle to dealership to have it confirmed. Per dealership "Accumulator inside brake booster has internal leak causing accumulator to constantly run." Brakes did not show signs of loss of function and there was no indicator lights on dash to warn me of problem with vehicle. When I inquired with dealership of how much longer they would last, they informed me they could not say, and that it was likely they could go out at any time. Called Toyota Customer support to see if they could provide any assistance. They stated a support program had been issued back in 2021, but is now expired. According to support program 21TE01, Toyota was willing to replace brake boosters that had already failed and could be confirmed with diagnostic code. However, as the part had not failed or showed signs of failure at that time, vehicle would not have qualified, and it was prior to current ownership. Owners should not have to wait for their brakes to fail in order to recognize they have an issue. If I had not heard the noise and brought it in BEFORE an accident occurred, it could have been very dangerous indeed. Now I am left to pay $2500 out of pocket for repair of a faulty/failing brake booster assembly.

NHTSA #: 11586612
mediumSERVICE BRAKES
Filed: Apr 2024

We were on the interstate when suddenly our cruise control stopped working. We then noticed several lights on the dashboard lit up, related to traction control, brakes, and ABS system. We could still use the car brakes, but it took more pressure than usual to engage the brakes. We pulled over to an auto parts store, but they stated there were no ODB codes logged. After researching online, I suspected a brake booster failure as described in Toyota's Customer Support Bulletin ZJB. At my earliest convenience, I brought the car in to a Toyota dealership, who confirmed that the brake booster and master cylinder were failing and needed to be replaced. Thankfully, the brakes did not fail outright, but the situation could have ended much worse. I understand by reading online that this is not an isolated incident. I encourage this issue be more thoroughly investigated so that a proper recall can be issued if needed, to bring this to the attention of other drivers of affected vehicles.

NHTSA #: 11585686
mediumSERVICE BRAKES,FORWARD COLLISION AVOIDANCE
Filed: Mar 2024

Code C1391 - Abnormal Leak in Accumulator. Accumulator for the brake pump is not holding pressure so the pump has to keep turning on to refill. Brake pump and ABS unit have to be replaced. In emergency situations, a malfunctioning ABS module leads to increased stopping distances and loss of steering control during hard braking. Lastly, tires can be worn more easily, which could lead to tire blowouts. This puts myself and others at risk for deadly consequences due to an increased chance for collision if I am unable to control or stop my car. This problem has been confirmed by Toyota and multiple years of Toyota vehicles have had their brake actuator assembly warranty enhanced. The warranty enhancement program has secondary coverage, which is applicable for 10 years from the first date of use, or 150,000 miles, whichever occurs first. Currently I meet the 10 year requirement but have 162,000 miles on my prius, which is completely frustrating. Many have posted with the same problem of being just outside the warranty. The vehicle has been inspected at a Toyota dealership. A symptom was noticeable starting from over 1 ½ years ago when I was under 150,000 miles. The car produced clicking sounds when the brake pedal was held down at traffic lights. Once released, the clicking sound would stop. I spoke with a Toyota mechanic and he told me it was an issue with the brake pump and ABS unit, but Toyota would not repair it until it completely failed. He also mentioned that there was coverage available for the ABS unit once it failed as it was a common issue for the Toyota Prius. If Toyota warranty allowed for the brake pump and ABS unit to be replaced when the symptoms appear instead of when it completely fails, I would have qualified with my mileage. Not only is the repair costly, but for those who cannot afford it and need to continue to use their car despite the brake pump and ABS unit failure, risk their own and others safety when continuing to operate their vehicle.

NHTSA #: 11576465
mediumSERVICE BRAKES
Filed: Dec 2023

the brakes have not failed yet, but there is a known issue with the brake booster on my model year. I would like to have the government force Toyota to guarantee the brakes for a longer period of time. currently Toyota has extended the warranty out 10 years / 150k miles from date of first use. Since these cars last so long, this should be 20 years / 300k miles from date of first use.

NHTSA #: 11561632
mediumSERVICE BRAKES
Filed: Dec 2023

The ABS and traction control system in my 2014 Toyota Prius 4 are not functioning. They ABS light an the traction control lights are both on. I work in the automotive industry and I used a code reader to pull the codes and got a C1391 which is a brake booster and brake booster pump. That means either the brake booster has failed or the master cylinder is leaking. I contacted Gosche Toyota in Hemet and after waiting for a service writer to contact me (which they never did) I called 5 times till I finally got someone on the phone. They were very familiar with the problem. The problem is so common that SOME vehicles have been recalled. But for others like mine only a "Customer Support Program" was made. That program covers repair "if the parts are available" only for 10 years or 150,000 miles whichever comes first. But for someone like myself who has 170,000 miles Toyota says there's nothing they can do. The cost for me to repair it is $4800. The customer support program bulletin "ZJB" even says that service writers are not allowed to tell customers about the problem or the customer support program. That way when the car doesn't meet the requirements, they won't be responsible for the repairs, even though they know it will eventually fail. There is a lawsuit somewhere regarding this very same problem but for me, I'm screwed. I depend on my car to make money and now me and my family are out of a car. This is a known defect and a safety concern. Toyota is okay with leaving us with nothing.

NHTSA #: 11561032
mediumSERVICE BRAKES
Filed: Sep 2023

After I started my car and began driving away from a shopping center, I noticed that there were 3 static warning lights on the dashboard that had not been there before. They were the slip indicator light, the brake light, and the ABS light. I also heard a short, repeating buzzing sound coming from the front of the car that I had never heard before. As I was driving, the brake suddenly felt loose. Luckily, this happened as I was pulling out of a shopping center parking lot, so I was able to pull over to the side of the road instead of getting on the highway, which I was about to do. The following day, a Toyota dealer indicated that the issue was the brake booster pump/actuator system and that my car returned with error code C1391. The dealer indicated that this is a known problem with Priuses within my year range. I was told that I would have to replace both the pump and actuator. After talking to the dealer, I realized that there had been subtle clues of this problem beforehand. In the few months leading up to this incident, sometimes if I hit a big bump in the road, for a moment the Slip indicator light would flash and I would feel like I had no control of the car i.e. I was ever so briefly slipping. However, because this happened so briefly and when I hit a bump and everything went back to normal, I didn't think this was an actual problem, but now I believe this was an early sign of the brake failure. I contacted Toyota Corporate Office. They confirmed that this was an issue known to them with Priuses and said that they had sent letters to the previous owner of the car in 2019 offering an extended warranty not a recall. However, apparently, the previous owner had not fixed the problem and the extended warranty expired. Toyota refused to pay for the repair for this and refused to forward a copy of the 2019 letter to me,. This brake defect is a serious issue with no major warning signs. As of this writing, the part is available for inspection.

NHTSA #: 11546997
mediumSERVICE BRAKES
Filed: Apr 2023

Was at Toyota dealership looking at 2023 Prius and 2023 Corolla Cross for daughter. I decided to leave and when I started backing up, my daughter noticed the Brake, ABS and Anti-Skid lights all came on at once. She asked if that was normal. It was not. A few minutes later, they stated flashing, then went out after I turned the car off. I live over an hour away and decided to drive it to Walmart, which is approximately 2 miles from the dealership and upon getting into the Walmart parking lot the lights started flashing again and upon applying the brakes, we heard a loud grinding sound. We didn’t think we were going to be able to stop! I immediately parked it and called my husband to tell him our horror story and to come pick us up. Our prayers were answered when he came and we were able to drive it slowly to the dealer. It was a cold rainy night to be on the road with braking issues. This is a very dangerous if not deadly situation! Shame on Toyota for not recalling this. How many lives have to be lost before you take ownership of your faulty hybrid braking system. We demand this be fixed for free regardless of mileage and be made a recall…NOT A CUSTOMER SUPPORT PROGRAM. RIDICULOUS!!! I don’t think our daughter wants a Toyota hybrid anymore…

NHTSA #: 11516069
mediumSERVICE BRAKES
Filed: Jan 2023

2014 TOYOTA PRIUS. CONSUMER WRITES IN REGARD TO HISSING SOUND COMING FROM BRAKES.

NHTSA #: 11500989
mediumSERVICE BRAKES
Filed: Nov 2022

My brakes completely stopped working while driving on a busy road. I took it to Toyota and they said it was my brake booster pump assembly. There is a known issue with the booster pump assembly and Toyota has a program to extend their warranty to fix this, but I was never once notified of this issue and never received any mail or notifications. They refuse to cover the repair because my mileage is out of warranty, despite the fact that this is an issue they caused and I almost wrecked and could’ve died. I was on a very busy road and my car was completely uncontrollable due to the brakes not responding. My passenger, others on the road, and myself could’ve died. The Toyota customer service representatives confirmed that this is part of the “customer service” program and it does not qualify due to it exceeding 150,000 miles. No warnings appeared on the dash until the brakes stopped working. The vehicle was inspected by Toyota and was confirmed to have said issue. This needs to be immediately recalled, I almost got into a very serious wreck.

NHTSA #: 11495471
mediumSERVICE BRAKES
Filed: May 2022

Aloha! I got 3 lights lid up on a dashboard: traction control, abs and brakes. C1391 error is coming up on obd reader. I researched online and found that it’s a common issue , brake booster and actuator needs to be replaced. Many people having same problem. I found your website because of this YouTube video where many people found same problem: https://youtu.be/xA9jyrbZDWo

NHTSA #: 11463760
mediumSERVICE BRAKES
Filed: Feb 2022

BRAKE BOASTER FAILURE. Dashboard lights illuminated: Brake, ABS and Traction. Brakes themselves felt spongy. Car felt very unsafe. I did find out that Toyota has a hidden Customer Support Program ZJB. However, the dealer found my diagnostic code to be c1202 and the Customer Support Program ZJB only supports repairs for codes c1391, c1252, c1256 or c1253. However, the exact same symptoms and safety issues were experienced and all the exact same warning lights also came on. The dealer’s diagnostics resulted in a $2,087 replacement of the brake booster.  The dealer did contact the Toyota district manager along the way.  He denied coverage based on the diagnostic codes reported BUT again I am arguing that my crazy expensive repair had the EXACT same symptoms, safety issues, and repair (e.g, brake booster replacement). The car clearly could not be driven. Note my Prius only has 92K miles.  Attached is a picture of the dashboard warning lights that came on and the dealer invoice for the repair. 

NHTSA #: 11450554
mediumSERVICE BRAKES
Filed: Oct 2021

Brake being less effective to be spongy and keep losing pressure. The brake actuator constantly making boosting noise. Making driving unsure that the brake working even no warning light on yet.

NHTSA #: 11437384
mediumSERVICE BRAKES, HYDRAULIC,HYBRID PROPULSION SYSTEM
Filed: Sep 2020

TL* THE CONTACT OWNS A 2014 TOYOTA PRIUS. THE CONTACT STATED WHILE DRIVING 35 MPH, THE VEHICLE LOSS MOTIVE POWER WITH THE CHECK ENGINE AND HYBRID BATTERY WARNING LIGHTS ILLUMINATED. THE VEHICLE WAS TAKEN TO LITHIA TOYOTA OF MEDFORD (1420 N RIVERSIDE AVE, MEDFORD, OR 97501) WHERE IT WAS DETERMINED THAT THE HYBRID BATTERY INTAKE FAILED AND NEED TO BE REPLACED. THE VEHICLE WAS REPAIRED. TWO WEEKS LATER FAILURE AN ABNORMAL SOUND WAS HEARD COMING FROM THE BRAKES. THE VEHICLE THEN WAS TAKEN BACK TO THE SAME DEALER HOWEVER, A DIAGNOSTIC TEST WAS STILL PENDING. THE CONTACT REFERENCED NHTSA ACTION NUMBER: DP19004 (SERVICE BRAKES, HYDRAULIC) 18V684000 (HYBRID PROPULSION SYSTEM) AS POSSIBLE SOLUTIONS TO THE FAILURES HOWEVER, THE VIN WAS NOT INCLUDED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 112,971.

NHTSA #: 11362052
mediumSERVICE BRAKES
Filed: Jun 2019

WHEN I START THE CAR AND IT BECOMES IDLE THE BRAKE PEDAL BECOMES STIFF AND GETS STUCK. I HAVE TO PUT THE CAR BACK IN PARK AND RESTART IT FOR THE BRAKE TO WORK PROPERLY. THIS DOESN'T HAPPEN ALL THE TIME BUT HAPPENS ENOUGH FOR ME TO BE CONCERNED. I TOOK IT TO TWO TOYOTA DEALERS AND THEY COULDN'T DUPLICATE IT AND COULDN'T FIND A PROBLEM BUT IT IS STILL HAPPENING. THIS ONLY HAPPENS WHEN I START CAR NOT WHILE DRIVING.

NHTSA #: 11222977
mediumSERVICE BRAKES, HYDRAULIC,UNKNOWN OR OTHER,ELECTRONIC STABILITY CONTROL (ESC),SERVICE BRAKES
CrashFiled: Jan 2019

THE EDR REPORT CLEARLY SHOWED THAT THE BRAKE OIL PRESSURE CHANGES DID NOT CORRELATE WITH THE PROGRESSIVELY INCREASING VEHICLE DECELERATION. THE ISSUE IS OCCASIONAL, RARE AND CANNOT BE REPRODUCED EVERY SINGLE TIME. THIS LEADS TO DISPARITY IN ASSUMED BRAKING DISTANCE FROM ROUTINE EXPERIENCE BY DRIVING THE VEHICLE AND ACTUAL BRAKING DISTANCE AT THE TIME OF FAILED BRAKING WHICH SUPPOSEDLY MAY BE AS A RESULT OF INVERTER ISSUES THAT ARE RESPONSIBLE FOR EXCLUSIVELY REGENERATIVE BRAKING AT LOW (<50 MPH) SPEEDS.

NHTSA #: 11173353
mediumSERVICE BRAKES, HYDRAULIC,ELECTRICAL SYSTEM,ELECTRONIC STABILITY CONTROL (ESC),SERVICE BRAKES
CrashFiled: Nov 2018

THE CAR BRAKES FAILED AT LOW SPEEDS (10-15 MPH) AND BUMPED INTO THE CAR IN FRONT IN A STOP-AND-GO TRAFFIC ON THE WET FREEWAY AFTER A RECENT RAIN. THE BRAKE PEDAL WENT ALL THE WAY DOWN TO TOUCH THE FLOOR, AS IF THE BRAKE PEDAL WAS DISENGAGED FROM THE BRAKING SYSTEM AND THE ABS LIGHT DID NOT TURN ON AT THE TIME OF BRAKING. THE CAR WAS DRIVING IN THE STRAIGHT LINE AND IMMEDIATELY BEFORE THIS I WAS ABLE TO SUCCESSFULLY BRAKE THE CAR ON THE VERY SAME TRIP. SO THE PROBLEM IS INTERMITTENT. THIS IS THE SECOND TIME WITH THIS CAR, AS MY SPOUSE ALSO EXPERIENCED THE SIMILAR BRAKE FAILURE AT EVEN LOWER SPEEDS (<10 MPH) RESULTING IN TOUCHING THE CAR IN FRONT AND MINOR SCRATCH ON THE BUMPER. IT WAS A DRY DAY THEN AND ALMOST SIMILAR CIRCUMSTANCES. ASSOCIATED GEICO CLAIM NUMBER IS 0423477190101054. WE OPENED A CASE WITH TOYOTA TO CHECK THE DATA RECORDER. ASSOCIATED TOYOTA CASE NUMBER IS 181112370.

NHTSA #: 11151142
mediumSERVICE BRAKES
Filed: Aug 2018

WHILE BRAKING THE FRONT WHEEL ROLLED OVER A SUNKEN SEWER COVER CAUSING TEMPORARY BRAKING FAILURE AND A SLIDING SENSATION.

NHTSA #: 11119828
mediumSERVICE BRAKES
Filed: Jan 2018

A LOS 3 MESES DE COMPRADO FUE EN MARZO 2017 DIO LA PRIMERA VEZ EL PROBLEMA EN TODO EL SISTEMA DE FRENOS LO REPARE Y AL MISMO TIEMPO EXACTO FINALES DE JUNIO 2017 VOLVIO A DAR EL MISMO PROBLEMA EL CONCESIONARIO NO QUIZO RESPONDER NI PORQUE TENIA GARANTIA LLEVE EL CARRO Y COMO NO SE PODIA MANEJAR POR LOS FRENOS NO SERVIAN ME ENVIARON EL CARRO EN GRUA A MI CASA NO LO USO DESDE AGOSTO Y LO ESTOY PAGANDO Y POR LOGICA YA SUCEDIO DOS VECES EL CARRO NO SIRVE Y YA NO SE A QUIEN PEDIR AYUDA PORQUE EL CARRO AUNQUE SE REPARE SU PROBLEMA SE VOLVERA A REPETIR PORQUE EL CARRO NO SIRVE Y ME E ENCONTRADO UN COMUNICADO DONDE DICEN QUE LOS PRIUS MUCHOS HAN RESULTADO CON EL MISMO PROBLEMA DE LOS FRENOS. TOYATA DIJO EN UNOS DE MIS RECLAMOS QUE ERA MI CULPA Y NI EN LO MAS ABSOLUTO NL ES MI CULPA SOY DUEA DE 3 CARROS MAS Y MAS VIEJOS Y CON NINGUNO HE TENIDO PROBLEMAS DE NINGUNA INDOLE ESPERO PUEDAN AYUDARME PORQUE MI VIDA Y LA DE MI HIJA CORREN PELIGRO AL MANEJAR ESE VEHICULO. ADJUNTO FOTO DE CUANDO DEL DEALER MANDARON MI CARRO PORQUE NO ES NADA SEGURO MANEJARLO.&#128544;

NHTSA #: 11060968
mediumSERVICE BRAKES
CrashFiled: Dec 2017

IN NOV 22 2017 I PARKED MY CAR AT 1719 BRADER PL. SOUTH IN SEATTLE, WASHINGTON IN A CITY STREET. APPROXIMATELY AT 1500 PM, I PULED THE CAR FROM THE STREET PARKING I-ORDER TO PICK A PASSENGER ABOUT 4 FEET AND THE CAR ACCELERATED BY ITSELF TOWARD RIGHT INTO THE BUILDING COMPLEX ON RIGHT AND FLIPPED ON THE SIDE OF THE DRIVER SIDE. THE CAR WAS ON DRIVE BUT I WAS TRYING TO STOP TO PICK UP A PASSENGER, BUT FAILED TO STOP AND ACCELERATED AND TURNED AND FOUND MYSELF FLIPPED ON THE SIDE AS YOU CAN SEE ON PICTURE.

NHTSA #: 11052847
mediumSERVICE BRAKES
Filed: Apr 2017

TL* THE CONTACT OWNS A 2014 TOYOTA PRIUS. WHILE DRIVING, THE BRAKE PEDAL WAS APPLIED, BUT THE VEHICLE FAILED TO RESPOND.THE VEHICLE WAS TAKEN TO A DEALER, BUT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT INCLUDED IN A RECALL. THE CONTACT DID NOT WANT TO PAY FOR THE REPAIR BECAUSE THE VEHICLE WAS STILL NEW AND SHOULD NOT HAVE ANY ISSUES. THE FAILURE MILEAGE WAS 30,000.

NHTSA #: 10971881
mediumSERVICE BRAKES,FUEL/PROPULSION SYSTEM
CrashFiled: Dec 2016

WHILE I WAS DOING A SLOW TURN IN A DRIVEWAY, MY BRAKE FAILED AND THE CAR CONTINUED TO ACCELERATE IN A FORWARD MOTION. WHEN I SHIFTED INTO REVERSE, THE CAR REVVED AND ROARED ACCELERATING AT FULL TILT. IT RACED ACROSS A ROAD INTO ANOTHER DRIVEWAY ONLY STOPPING WHEN WEDGED BETWEEN A GARAGE DOOR AND A TREE. TOYOTA TOOK THE TOTALED CAR AND HAD IT INSPECTED BY ENGINEERING ASSOCIATES AND INSURANCE AUTO AUCTIONS. THEIR RESPONSE IS THAT "THERE WAS NO SERIOUS DEFECTS IDENTIFIED." OBVIOUSLY, THE MOMENTARY MECHANICAL OR ELECTRONIC FAILURE OF MY CAR COULD NEVER BE DETECTED, SO ACCORDING TO TOYOTA, THERE WAS NOTHING TO CAUSE THE FAILURE. I FEEL TOTALLY VICTIMIZED AND BELIEVE TOYOTA SHOULD TAKE RESPONSIBILITY AND COMPENSATE ME FOR THE LOSS OF MY CAR.

NHTSA #: 10935859
mediumSERVICE BRAKES
CrashFiled: Feb 2016

WHEN CAR STALLS ...THERE ARE NO BRAKES..HAPPENED TO ME 4 TIMES. HIT OBJECTS 3 TIMES TO STOP.

NHTSA #: 10836548
mediumSERVICE BRAKES
CrashFiled: Apr 2015

I PULLED MY 2014 TOYOTA PRIUS SLOWLY OUT OF A PARKING SLOT IN A SMALL PARKING LOT TURNING IT THE DIRECTION I WANTED TO GO ON A VERY SLIGHT SLANT DOWNHILL. BEFORE I COULD PUT IT IN DRIVE FROM REVERSE IT STARTED ROLLING DOWNWARD ON ITS OWN. WHEN I WENT TO APPLY THE BRAKES, THEY WERE SQUISHY AND DID NOT ENGAGE. I TRIED SEVERAL TIMES TO GET THEM TO ENGAGE BUT THEY NEVER DID. I WENT TO PUT THE EMERGENCY BRAKE ON BUT IT IS LOCATED SO HIGH UP IT WAS DIFFICULT TO GET MY FOOT UP THERE QUICKLY. MEANWHILE THERE WAS A TRUCK PARKED ACROSS THE END OF THE PARKING LOT LANE SO MY CAR ROLLED INTO THE TRUCK CREATING DENTS IN THE FRONT DOOR PANEL AND REAR DOOR PANEL. THIS WAS OBVIOUS BRAKE FAILURE. I WENT TO THE LOCAL TOYOTA REPAIR AND DEALERSHIP AND SPOKE WITH A SHOP EMPLOYEE. HE TOLD ME THAT THIS CAN ACTUALLY HAPPEN WHERE YOU CAN BACK A CAR UP AND TURN IT AND IT WILL GO ON ITS OWN (BUT IT SEEMS HE IMPLIED THAT THE "READY" LIGHT MIGHT NOT HAVE ENGAGED) AND THAT HE "HAD SEEN IT HAPPEN HIMSELF". IF THE TRUCK HAD NOT BEEN THERE, MY CAR WOULD HAVE ROLLED DIRECTLY OUT INTO ONCOMING TRAFFIC ON THE MAIN THOROUGHFARE THROUGH TOWN WHICH HAD THE HUGE POTENTIAL OF CAUSING A MAJOR ACCIDENT WITH INJURIES. I DID TRY TO RECREATE THE EVENT IN A NONPOPULATED AREA IN A VERY SAFE MANNER AND WAS UNABLE TO DO SO. THAT EVEN SCARES ME MORE!!! AS YOU HAVE NO IDEA IF IT CAN OR WILL HAPPEN AGAIN. I SPENT $20,000 PLUS FOR A NEW CAR THAT I AM ALWAYS HYPER-CAUTIOUS IN BECAUSE NO ONE WILL FESS UP TO PROBLEMS. IF I SELL THE CAR IT WILL BE AT A GREAT LOSS WHICH I CANNOT AFFORD! IN THE INTERNET I NOTE THAT THERE WERE SIMILAR PROBLEMS WITH THE BRAKES, ESPECIALLY AROUND 2007 - MANY WERE DOCUMENTED BUT TOYOTA WAS NEVER TAKEN TO TASK RE: THESE CONSUMER COMPLAINTS AS I SUPPOSE THE CONSUMERS JUST COULDN'T "PROVE" THEM. AS USUAL MONEY TRUMPS HUMAN LIVES AND SAFETY. TOYOTA SHOULD BE ASHAMED OF THEMSELVES. *TR

NHTSA #: 10704553
mediumSERVICE BRAKES
CrashFiled: Feb 2015

I WAS CROSSING THE TRAIN TRACKS IN PALO ALTO ON CHARLESTON ST NEAR ALMA AND TRIED TO STOP AT A STOP LIGHT RIGHT AFTER THE TRACKS. WHEN I STEPPED HARD ON THE BRAKES, THE BRAKES DID NOT WORK AT ALL. MY CAR DID NOT SLOW DOWN AT ALL AND I HIT THE CAR IN FRONT OF ME. *TR

NHTSA #: 10680404
mediumSERVICE BRAKES
Filed: Jul 2014

WE HAVE RECENTLY PURCHASED A 2014 TOYOTA PRISM THAT NOW HAS LESS THAN 4000 MILES ON THE ENGINE. IN A VERY SHORT PERIOD WE HAVE EXPERIENCED A MASS AMOUNTS OF DEFECTS WITH THE CAR. THE FIRST REPAIR WAS TOYOTA HAD TO REPLACE THE BATTERY FROM OUR HOME. THE SECOND WAS A RECALL DEALING WITH A NATIONAL RECALL WITH SOFTWARE UPDATES. ON JULY 16TH THE YELLOW LIGHT CAME ON AS SOON AS WE STARTED TO DRIVE THE CAR. IT WAS THE BRAKE INDICATOR AND THEY ASKED MY WIFE TO DRIVE IT TO THE DEALERSHIP 25 MILES AWAY? I CALLED INTO QUALITY IMPORTS TOYOTA IN FT. WALTON BCH , FLORIDA WHERE WE PURCHASED THE CAR AND VENTED MY FRUSTRATIONS. I WAS NOT SATISFIED WITH THEM ASKING US TO DRIVE THE CAR WITH A BRAKE LIGHT INDICATOR THAT JUST CAME ON. WE ARE FEARFUL OF THE NEXT FAILURE WITH THIS VEHICLE. THE MANUFACTURE GAVE ME A CLAIM NUMBER 1407161970 TO START THE PROCESS OF THE COMPLAINT. I GOT A CALL FROM THE TOYOTA CASE MANAGER [XXX] WHO BASICALLY SAID WE HAVE TO FILL OUT A LOT OF FORMS FOR THE LEMON LAW AND ARBITRATION PROCESS. BASICALLY WE WERE ASKED TO DRIVE THE CAR UNTIL 30-40 DAYS LATER FOR THE PROCESS. I TOLD [XXX] WE DON'T FEEL SAFE IN THE CAR AND THAT THEY SHOULD LET US USE A LOANER. HE DENIED THE REQUEST?? REQUEST TO HAVE THIS INVESTIGATED. 'INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).' *TR

NHTSA #: 10611282

Other 2014 Toyota Prius Issues