The Prius have been great and have been serviced with oil changes, spark plugs etc. It runs like a champ with 159K miles, but all of a sudden one day, the traction control, ABS, and brake lights all came on at once. The brake pressure feels softer and that whirring noise is heard every few seconds. Dealership said it was the brake actuator and would cost 3K to fix. Apparently there was an extended warranty for it but it ended in November 2019. Attempted to call Toyota, but no help.

- Jacksonville, FL, USA

Defect within the brake booster pump assembly. If this defect occurs, various warning lamps on the instrument panel made illuminate, I experience increased stopping distance, reduced hydraulic pressure within your brake system, the deactivation of brake assist, and/or the deactivation of vehicle stability control. Toyota has previously issued at least two safety recalls ' D0H and K0L ' designed to prevent similar dangerous occurrences. However, hundreds of thousands of generation III Prius vehicles (2010-2015 model years) were excluded from those safety recalls.

- Huntsville, AL, USA

ABS break parking light come

- Walker, LA, USA

While driving, we made a left turn on a city street, warning lights for ABS, stability control, and warning lights all came on at once. Brakes became spongy when pressed. Was able to still brake but with much more effort and not confident in the braking. I had it towed to a local mechanic and the diagnostic error code registered "C1391". per mechanic this is for ABS acculator, or booster pump failure or leak per mechanic. This happened out of the blue, no warnings. Luckily while driving we were driving in town and at a speed of only about 15-25 mph and we were not on the free way or at high speed. Per Toyota the part required are cylinder assembly brake and brake pump assembly. Cost to repair these parts per Toyota would be estimated at $2700. Local dealership wouldn't do anything until it registered the code again. The dealership service advisor, said until the code is triggered again they wouldn't do anything. Also after the code was reset the brakes worked normal again. This in my opinion is a safety issue!

- Modesto, CA, USA

I was driving at a speed around 60 mph and had to break suddenly and the car did not break right away and took more than normal to slow down. I just had the inspection a month ago and I was said I had plenty of breaks left.

- Frisco, TX, USA

The contact owns a 2010 Toyota Prius. The contact stated that upon starting the vehicle, the brakes warning light, ABS warning light and several other warning lights illuminated. The contact took the vehicle to Toyota of santa barbara located at 5611 hollister ave, goleta, ca 93117, (833) 779-4500) to be diagnosed. The contact was informed that the brake booster assembly needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 116,000.

- Santa Barbara, CA, USA

ABS system fails, rear passenger seat belt issue, headlight bulbs burned too much

- Lorton, VA, USA

When I was driving on West paces road in atlanta, I tried to brake and the barakes did not work. Therefore I went directly into the back of the car in front of me. I must precise that the brakes pad were new, the brake liquid was ok. I was driving at 30 miles an hour.

- Marietta, GA, USA

The contact owns a 2010 Toyota Prius. The contact stated that while traveling 20 mph, the anti-lock brake system, stability control and brake warning indicators illuminated and the vehicle brake ability began to delay. The vehicle was driven to an independent mechanic, they determined that the brake booster had to be replaced. The vehicle was not repaired. The vehicle was not taken to a dealer for a diagnostic. The manufacturer was not notified of the failure. The approximate failure mileage was 230,000.

- Springfield, MO, USA

Brakes fail when applied steadily while moving on a wet or bumpy surface causing the car to continue forward unless the peddle is pressed again firmly. This happens on the city streets while moving in a straight line. This appears to be due to the known ABS problem in the 2010 Prius and was supposed to have been corrected byway of a software patch, which I am told by chuck patterson chico Toyota has already been done and no further ehlp could be expected from Toyota.

- Chico, CA, USA

Noticed brakes pulsing at very slow speeds. Looked up symptoms online and determined it was from brake booster leak issue. Took to dealership but because no codes showed up on diagnostic machine, was told nothing wrong. (that was at 147,000 miles.) fast forward 6 months and warning lights came on while driving and braking became very spongy. Took back to dealership and needs brake booster pump and brake cylinder assembly replaced. Now has 155,000 miles and is 5000 miles past warranty. Long story short is that I was able to determine an issue long before their computer could detect anything. But because I'm now past warranty, I have to pay $2600 for repair.

- Savannah, GA, USA

The contact owns a 2010 Toyota Prius. The contact stated that while driving at various speeds, the ABS and traction control warning lights illuminated and remained illuminated. The contact stated that the brake pedal was depressed and went to the floorboard extending the braking distance. The vehicle was taken to an independent mechanic where it was diagnosed with a defective ABS control unit. The vehicle was not repaired. The VIN was not included in NHTSA campaign number: 10V039000 (service brakes, air). The manufacturer was notified of the failure. The failure mileage was 128,000.

- Ballwin, MO, USA

I was driving on the highway at about 60 mph when the brake light, ABS light and slide light illuminated on the dash. I took the car to the dealer and they said it was the brake actuator. When I researched this, I found that it is a known problem totoyota and they did a voluntary recall. My question is why would there be a voluntary recall on a part that is vital to the safety of the car and has a known defect? because it was a voluntary recall they could arbitrarily select a cut off (150,000 miles) instead of ensuring the car was safe. This is only for 2010 Prius.

- Greensboro, NC, USA

My brakes have failed due to a faulty brake accumulator and brake booster on my 2010 Toyota Prius. I noticed this problem when attempting to come to a stop at a redlight. The brakes felt spongy and unresponsive. I narrowly missed colliding with the car in front of me by swerving onto the shoulder. Toyota previously acknowledged this faulty part but claims that I missed the deadline by 35 days to get it fixed. The repair costs roughly $4,000 which Toyota has refuse do to accept responsibility for. I cannot afford to fix this and believe that it is irresponsible for Toyota to put their profits above the safety of its' customers. I do no this believe that it is ethical to put a deadline on a safety concern of this nature.

- Mary Esther, FL, USA

The contact owns a 2010 Toyota Prius. The contact stated that the brake booster assembly on the vehicle was defective and failed to operate as needed. The vehicle was taken to (greentree Toyota 87 federal rd, danbury, ct 06811) to be diagnosed. The mechanic was unable to retrieve a fault code. The vehicle was then taken to (curry Toyota of Connecticut 832 straits turnpike, watertown, ct 06795) for a second diagnosis with the same results. The contact became aware of NHTSA campaign number: 13V235000 (service brakes). The vehicle was not repaired. The contact received a buyback offer from green tree Toyota but declined the offer. The manufacturer was notified of the failure. The failure mileage was 93,000.

- Lexington, KY, USA

The contact owns a 2010 Toyota Prius. The contact stated while parked on a small hill, upon starting the vehicle and shifting to drive the vehicle started to roll forward down the hill. The brake was applied but failed to engage as the vehicle collided with a neighbor's fence and trailer. The brake warning was light illuminated during the failure. The contact stated that the passenger sustained bruising to the knee as well as he also sustained bruising to the knee that required no medical attention. A police report was not filed. The vehicle was taken to lakeland Toyota (2925 mall hill dr, lakeland, fl 33810) where the brakes were repaired. The contact stated that the manufacturer was notified of the failure and the vehicle was inspected by a Toyota engineer assistance field inspector. The failure mileage was approximately 197,356.

- Lakeland, FL, USA

I bought this car around mid year of 2019, and when I first used it in the highway coming back from work, there was traffic and I noticed the breaks not responding well. This has happened many times since I bought it, in the streets as well. There's also a orange light saying that it needs maintenance. I have taken the car about 3 times to the person that sold it to me because he has a car shop and it still does the same thing.

- Montclair, CA, USA

While driving back from running errands my car's lights on the dashboard started to come on and noises started to start happening. I was lucky I was only a few streets away from my house so I decided to drive back home. The break was really hard to press. The brake felt like it was a rock and hard to press. I drove with my hazards on unsure of what could happen while driving. There was something wrong and the car started to beep and I was worried the car might fail to brake so I started to drive very slowly. The brakes were so hard to press. I took my car to Toyota the next day and they said there was a defect with my brakes. They had the vehicle for a few days and returned to me saying it was fixed. Needless to say this was a very scary situation to be in. I drive a lot. If I had been further away from my home this would have put me in a very dangerous position. I could've been stranded or drove on the freeway in this condition unsure of what was happening. My car could've stopped braking, I could've gotten into a big accident and injured other drivers around me. This is a very serious issue that should be recalled now and save other drivers! in California people drive up to 80 mph on the highway-if we are behind a car and the brakes malfunction you can imagine what will happen to the driver and anyone involved! when I heard Toyota was not recalling this on all Prius's that might be affected it really scared me. This is unsafe.

- Laguna Niguel, CA, USA

Hazard lights flashing when driving forward or reverse dependent on the speed of wheel rotation. I am told that my skid control ECU as well as the brake booster and pump are bad and need replacing. I keep reading about this issue, but Toyota says it is not a broad issue. It is not clear what systems have failed or what risk there is in driving.

- Severna Park, MD, USA

The night before, everything was working fine. The next day, I start my car up at 4pm-5pm, first time I started my car and I have new lights on my dashboard. The ebrake light, ABS light, brake system light, and traction light. I release my ebrake and the ebrake light is still on. Concered I checked the break fluid and the 12V battery and those were fine. Drove the car around the block to see if there was an issue or if the lights were just on. The brakes were almost completely out the vehicle would only stop when I put my foot to the floor. I end up taking the vehicle to my local Toyota dealership were after four hours of looking around, informed me that it was the brake actuator and the booster pump. Which also came with a bill of $3000 to fix it.

- Louisville, KY, USA