The contact owns a 2010 Toyota Prius. While driving approximately 5 mph, the brake pedal had to be depressed to the floorboard to stop the vehicle. The traction control, ABS, and brake warning indicators illuminated. The vehicle was taken to the dealer where it was diagnosed that the brake pressure accumulator needed to be replaced. The manufacturer was notified of the failure. The VIN was not included in NHTSA campaign number: 13V235000 (service brakes). The approximate failure mileage was 75,000. The VIN was not available.

- Miami, FL, USA

I am experiencing a resurgence of the acceleration while braking phenomenon that was the basis of the 2010 recall. We had the car fixed at the time of the recall. The incidents relate to when I am braking and happen to go over a bump or hit a pothole. As I am breaking the car suddenly accelerates forward and you have to keep breaking harder to keep from having the car get away from you. It is now happening almost consistently. After calling the local Toyota dealer and the general Toyota number, I find out that they are not willing to apply the same fix as they did in 2010. I am now forced to take the car in and have it diagnosed and don't know what they will charge me for that. Then Toyota said I could call them back to see if there is anything they can do I don't understand why they don't have to stand by a fix that is not related to wear and tear but rather a malfunction in the way they built the car. It should never be right to have a car accelerate if one is braking. The only damage to date has been a glare from a construction worker who was telling me to stop only to see the car lurch toward him.

- Harrisburg, PA, USA

I was in a parking structure going approximately 15 mph when I removed my foot from the accelerator to press the brake. Before I could get my foot to the brake, the car quickly accelerated. It took at least two attempts at pushing the brake peddle before the car came to a stop. And, to be honest, the guardrail the car hit helped actually stop the vehicle. It was totally unexpected and extremely scary. In hindsight, I should have suspected that there may be a problem when I noticed that sometimes when applying the brakes to come to a stop there would be a feeling of the brakes slipping and the car lurching forward a bit. The dealership had the car towed in to get checked out, and I have been told that they will notify Toyota. In the meantime I am concerned about the safety of this car!

- Champaign, IL, USA

The contact owned a 2010 Toyota Prius. While driving 45 mph, the anti-lock brakes independently engaged and the power steering and brakes failed without warning. As a result, the contact veered off the road and rolled over several times. The air bags failed to deploy. The contact sustained a concussion, fractured ribs, and several lacerations that required medical attention. A police report was filed. The vehicle was towed to a salvage yard where it was deemed destroyed. The manufacturer was made aware of the failure. The failure mileage was 48,000.

- Brookline, MA, USA

I have driven people for a living for over 30 years. I bought a Prius because of fuel costs. A month ago while transporting passengers, my power brakes go out and my dash lights up with ABS, brake, & traction control warning lights. I take it to the Toyota dealer who charges me $111 to tell me I have a brake problem and that it will cost $4418 to fix it. Code # C1391; they recommend replacing the master cylinder; and booster pump assembly saying there is an abnormal leak down of the brake accumulator. This is insane. I cannot afford to fix it and must continue to work to live; therefore driving about 200 miles/day with hydraulic only brakes. My research indicates there was a major recall for this exact problem on the 2010 model. The dealership and Toyota corporate both say my vehicle was not part of the recall. I feel as though it should be since, obviously, the problem has not been solved. I am not alone, as many owners on priuschat have the same problem. This is a major safety concern to not only myself, other vehicles or pedestrians, but also my passengers. An expanded recall is necessary and warranted. Anything you can do will help and make us all safer..

- Scottsdale, AZ, USA

The contact owns a 2010 Toyota Prius. While driving approximately 30 mph, the brake pedal was depressed but the vehicle failed to slow down until excessive pressure was applied. The vehicle was taken to the dealer where it was diagnosed that the brake booster nitrogen fuel leaked into the brake fluid. The brake booster pump assembly was replaced. The VIN was not included in NHTSA campaign number: 13V235000 (service brakes). The manufacturer was notified of the failure. The approximate failure mileage was 46,485. Updated 10/06/16 updated 6/19/18

- Iowa City, IA, USA

Design flaw....loss of brake function during braking events while going over bumps and potholes (lower speeds <30mph). I believe the root cause is the transition between regenerative braking and hydraulic brake. I always feel unsafe during braking events, and always have to be proactive and calculate the distance in front of me to accommodate the loss in stop distance. Very uncomfortable feeling!

- Shelby Township, MI, USA

Brakes suddenly stopped functioning while driving 55 mph on 4 lane highway. Dashboard alarms also indicated there was a brake problem. Per Toyota technician at prestige Toyota in kingston NY, gas bubbles contaminated brakes and ruined pump and actuator. According to Toyota warranty assistance representative "fred, " who spoke with local technician, there was a recall for this exact condition, but did not include my particular VIN. I was very lucky not to have been in a serious accident, and I have to wonder how many other Prius drivers are at serious risk because of similar condition.

- Cape Elizabeth, ME, USA

The contact owns a 2010 Toyota Prius. While driving at an unknown speed, the brake pedal was depressed but it took a greater amount of time to stop the vehicle. The contact applied excessive force to the brake pedal. The ABS and brake warning lights illuminated. The vehicle was taken to a dealer where it was diagnosed that a brake pump needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The VIN was included in NHTSA campaign number: 13V235000 (service brakes). The failure mileage was 96,000.

- Malden, MA, USA

Oncoming car stopped at traffic light while I was proceeding straight in the opposite direction. The oncoming car then made a left turn across the road in front of me. I started a turn to the right assuming that the other car would see me and stop. At the same time I hit my brakes. My car seemed very slow to decelerate. I now realize that car brakes can give much more significant stopping. At the time, because of my training as military and airline Pilot, I stayed on the brakes and did not pump them. In retrospect, pumping the brakes might have gotten them to work. The anti-skid system seemed to be ineffective. I struck the other car at its right front wheel. My airbag worked wonderfully, but my car was totaled. As no person was hurt, the police were uninterested. The accident is on file with riverside county sheriff's office as file# MV142810251. The date was 10-8-2014.

- Riverside, CA, USA

On 05/25/2016 at about 9am, while in motion at a rate of speed approx 25 mph on a street during construction (don't know if the bumpy road had anything to do with it), the change oil soon light appeared and seconds later all the lights on the dash came on with the message to check the "check hybrid system". I tried to stop the vehicle and it kept accelerating. I pressed on the breaks really hard and the traction control light kept flashing on and off like crazy but it barely had any impact. Although the vehicle slowed, it did not come to a full stop. I ended up hitting the vehicle in front of me. Thank god it was a truck and as able to stop the car from moving further or I could of ended up in the middle of an intersection. After the collision, the car would not stop although the park button was pressed and light was on. I even tried turning off the vehicle and the vehicle stayed on and in drive. I ended up in the hospital and don't know how it eventually got turned off but that was very frightening. I had my children in the car. On impact, the seat belts did not even tighten.

- Henderson, NV, USA

At 46,900 miles without any warning all the brake warning lights came on and braking effectiveness dropped off. Have to push pedal to the floor to get the car to stop the lights for traction control, anti lock brakes and the word "brake" and another light like a circle are on all the time normally there is strong braking when first touch the brake pedal but now very limited braking until push down very hard on the brake pedal. Looked at brake fluid and it is full, do not know why the brakes are not working

- Austin, TX, USA

The contact owns a 2010 Toyota Prius. While driving 35 mph over bumps in the road, the brakes failed to slow down the vehicle. The failure recurred each time the vehicle drove over a bump. The vehicle was not diagnosed or repaired. The VIN was not included in NHTSA campaign number: 13V235000 (service brakes). The manufacturer was not notified of the failure. The approximate failure mileage was 75,000. Updated 07/14/16

- Northridge, CA, USA

While driving home from work, the brakes went out on my Toyota Prius and the warning lights for ABS, traction control, and brakes all came on. I still had a small amount of brake pedal left and the emergency brake continued to work. When the Toyota dealer diagnosed the problem today, they said that it was a $3500 brake booster and that it was not covered under recall or warranty. The symptoms, the warning lights, and the results all match a previous Toyota recall (D0H) exactly, yet they will not include my car under the recall because my VIN is not part of the original recall. They're lucky I wasn't physically injured in accident caused by this. I suggested to their customer service rep that maybe my car should be included in the recall, but they did not agree.

- San Antonio, TX, USA

I was driving my vehicle at about 35 mph on a two lane, hilly road. Suddenly, the ABS and warning lights started flashing, and there was a loud beeping noise. I pressed the brake pedal, and there was no response. Since I was traveling uphill, I slowed and then used my emergency brake to come to a complete stop. After the vehicle was towed to a Toyota dealer and diagnosed, I was informed that there was an internal leak in the hydraulic unit of the braking system, and that the ABS pump module and brake master cylinder needed replacement. This was a very similar issue to a recall of other 2010 Toyota Prius vehicles, but the recall does not apply to my VIN number. Toyota claims that the problem was "remedied" before my vehicle was produced even though one of my trouble codes is the same as the trouble code referred to in the recall.

- Media, PA, USA

The contact owns a 2010 Toyota Prius. While driving at an unknown speed, the brakes suddenly failed to operate when the brake pedal was depressed. During the incident, the instrument panel lights illuminated and an audible signal was present inside the vehicle. The vehicle was taken to the dealer where it was diagnosed that the brake booster was faulty and needed to be replaced. The manufacturer was notified of the failure and the contact was informed that the vehicle was not included in NHTSA campaign number: 13V235000 (service brakes, hydraulic). The failure mileage was 98,000.

- Lakeland, FL, USA

The contact owns a 2010 Toyota Prius. While driving at various speeds, the brake pedal was depressed but the vehicle failed to slow down. The contact had to depress the brake pedal with extreme force in order for the vehicle to stop. The yellow and red brake system warning indicators and the ABS warning indicator illuminated. The contact also stated that the brake pedal felt like a sponge once the brake pedal was fully depressed. The vehicle was taken to a dealer where it was diagnosed that the brake booster assembly and the brake booster pump assembly failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and stated that the VIN was not included in NHTSA campaign number: 13V235000 (service brakes). The failure mileage was unknown.

- Philadelphia, PA, USA

The Toyota Prius I have has a recall, I brought the car to Toyota hamer dealer in mission hills, they released the car back to me after the I recieved a brakes recall, I experienced scary unsafe experience in this car. The car was park in a up slop driveway, my family was inside, the car turned on, I had my brake peddle pressed, as I shifted into reverse thecar moved and stopped in a violent way to a stop, I tried gently letting go of the brake paddle and again the car moved swiftly with the brakes engaged to a violent stop. This is very unsafe.

- San Fernando, CA, USA

Brake booster pump assembly vehicle in motion when on highway when loss of breaking and steering took place. Vehicle lighted icons appeared on dash along with alarm sound. (ABS) (!) (brake) (ss). This unsafe condition could have been avoided if NHTSA would have forced Toyota to recall this defective part in 2013 when Toyota notified NHTSA of the defective braking system. Or Toyota mailed notice to customers as stated back in 2013, which prevention could prevent loss of life or harm. Or class action. www-ODI.NHTSA.dot.gov/acms/cs/jaxrs/download/doc/ucm442011/rcmn-13V235-0909.pdf

- Ranson, WV, USA

The issues is my brakes. When I am slowing down at an intersection, typically when the road is wet, if any of my wheels passes over a manhole, or pavement striping that is slicker than the pavement, the brakes will release. On several occasions, my car has gone through or partially through the intersection. Recently this caused me to run a red light. This has been going on since I purchased the car used. I took it to the dealer (burien auto, burien, wa) about 18 months ago with a note explaining what is happening, and the mechanic said he road tested it and there was no problem.

- Seattle, WA, USA