The traction light, the ABS light and the brake light appear on the dash. I have already paid the mechanic approximatly $1,500 for repairs and now I am told I need the ABS brake booster which costs an additional $2,546.26. This part has been recalled on other 2010 Toyota Prius models, but not mine. I cannot afford this fix, so I am driving my car as it is. Brake pedal acts differently each time I use the brakes.

- Florence, SC, USA

I was on the freeway in traffic, going 60 mph. There was road construction coming up ahead. I depressed the brake pedal and nothing happened. The car didn't slow down at all and I crashed into another vehicle. My car was manufactured when the 'voluntary safety recall' by Toyota was supposed to address this, but I received no notification, nor did thousand oaks Toyota, where I had the car serviced, communicate about it.

- Morro Bay, CA, USA

I've counted at least 30 brake booster/actuator complaints on this site year to date for the same issue on this model year car. Our issue is the same as everyone else. Just under 150K miles, brake, ABS and traction control lights came on my daughter's car (we are original owners) as she was driving home from work. Non responsive brakes, only rear brakes engage if you push the pedal to the floor of the car. Took to dealer who diagnosed dtc C1391, accumulator leak malfunction. Our car was not included in original warranty enhancement (manufacture date of 1/2010), so price quoted was $4814.66. Our daughter cannot afford, so we called Toyota warranty who offered us $2007 as a measure of good will, but no more. This is a serious safety issue, beyond ridiculous that some cars with the same defect had the warranty enhancement program available which paid for the entire repair, yet most others like us were denied the fix and are facing astronomical repair bills that many cannot afford, nor anticipate on a car such as a Toyota. The brakes failed while my 22 year old daughter was driving - that could have gone so very wrong.

- Land O Lakes, FL, USA

While driving on a bumpy surface the brakes slip when applied. Stopping ability is reduced. This happens on a regular basis, on surface streets and highways. I have noticed it while stopping in a straight line, but it may also happen while stopping on a curve.

- Santa Monica, CA, USA

The contact owns a 2010 Toyota Prius. While driving approximately 30 mph and depressing the brake pedal to slow down the vehicle, the pedal became loose. As a result, the vehicle continued moving and the anti-skid, brake, and ABS warning indicators illuminated. The contact was able to bring the vehicle to a stop by depressing the brake pedal multiple times. The vehicle was taken to cavender Toyota (5730 northwest loop 410, san antonio, tx 78238, (210) 681-6601) where it was diagnosed that the power booster failed and needed to be replaced. The vehicle was not repaired due to the repair fees. The manufacturer was notified and informed the contact that the VIN was not included in any recalls; therefore, no further assistance was offered. The approximate failure mileage was 85,000.

- San Antonio, TX, USA

ABS, brake and traction control lights on. Code C1391 abnormal leak in accumulator.

- Miramar, FL, USA

C1391 - ABS system failed

- Derwood, MD, USA

Brake actuator has failed. Traction control, ABS, brake lights illuminated on dash. More effort needed to engage brakes. This affects the regenerative braking as it no longer charges on braking as it was designed. Checked Toyota website for recalls since this is safety related, and there are none. Which is quite disturbing. I've researched Prius forums and this seems to be an ongoing problem. Toyota issued a recall for the generation 2 model, however this seems to be a problem for generation 3 models as well. The problem did occur when on the highway traveling at 60 mph.

- South Houston, TX, USA

The contact owns a 2010 Toyota Prius. While the brake pedal was depressed, the vehicle delayed to stop and the brake warning indicator illuminated. The vehicle was taken to sheehy Toyota of fredericksburg (3507 jefferson davis hwy, fredericksburg, va 22408, (540) 507-0076) and was informed that the vehicle was not included in a recall. The vehicle was not diagnosed or repaired. The contact referenced NHTSA campaign number: 13V235000 (service brakes). The manufacturer was notified and the contact was advised to contact the dealer. The failure mileage was approximately 250,000.

- Partlow, VA, USA

Brake system has kept making air pushing sound but suddenly I cannot push the brake pedal at all. It feel like blocked. Braking force is not working

- Katy, TX, USA

Serious issue with the Prius. Brake actuator/brake booster fail. The braking is seriously compromised because of this problem. The dealership says it is known to Toyota, but they will not offer any assistance. When the brake/ABS/trac lights are reset the brakes function perfectly for a short period of time and then the lights/problem returns.

- Deland, FL, USA

The other day my brake light, traction, and ABS light came on. Took it to the mechanic and they said it's code C1391 - abnormal leak in the accumilator, electrical issue, and I must go to the dealer. I've seen others complain about this. Shouldn't this be a recall?

- Woodland Hills, CA, USA

Antilock brake actuator and pump failure. Quoted as a $4700 repair at dealer with labor. Parts are just over $3600. There were recalls on gen 2 Prius'and extended warranty on other Prius'. this car falls under no help at all. We are original owners and car had been essentially problem free. Disgusted that this dangerous and known problem isn't being properly addressed by Toyota. All lights on dash related to brakes lit up while driving. Still had brakes. Took to dealer to check problem.

- Merritt Island, FL, USA

I own a 2010 Toyota Prius iv. I concur with all that has been documented about ABS and braking issues with the Prius. Two weeks ago my brakes started to sqeal. I took it to a mechanic and was informed all was well (brake pads, fluids, oil). A week later the brake and ABS indicator came on in my vehicle. The braking distance is elongated as I have to pressed firmly on the brake for the car to stop. I took it to my mechanic who reset the car. I drove from the mechanic and all appeared to be fine until I hit a bump in the road. The indicators came back on immediately and the braking changed. I had to pressed the brake pedal all the way down in order for the car to start. The car always surges forward whenever I hit a pothole, bump or any rough surface. In hin sight, when I first bought the car I had a fender bender because the car lurched forward when I was parking. I am now discovering this issue is a knwon issued with Toyota; particularly the Prius. Fixing this problem seems to be expensive. Toyota should cover the cost via a recall.

- Brooklyn, NY, USA

A tire blew out on the highway, and afterwards the ABS light, brake light, and traction light came on. Apparently the brake acuator has failed completely.

- Melbourne, FL, USA

On a few occasions when the car is in motion, we have depressed the brakes and they did not grab right away. This happened once getting onto a highway, twice on a city street, and another time on a country road. There seems to be a small delay before they will grab, causing the car to feel out of control for that brief moment. It feels unsafe when this happens and doesn't seem normal. We contacted the service manager at Toyota to have the car looked at, and he did not return our call.

- Green Bay, WI, USA

When I press brake on the bumped road, the car function weird and seems like it has sudden "shock" so it is kind of losing control for the car even I didn't press brake that hard, it happens several times already during the course of 7 years that I owned this car, even when car is new. I was so scared and nervous, I don't know where to report this problem and did mentioned to dealer before. The problem is random and unpredictable and I don't know when it will happen. But I guess I am kind of cautious on when I press pedal when I drive. This is mostly happen in local drive, not highway. In driving when driving forward, maybe there is something on the road, but it should not be doing this as it is very scary and it's like a sudden "jerky". my name is [xxx] it happened at least 10 times during the past 7 years to me. Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- San Jose, CA, USA

2010 Toyota Prius. Consumer writes in regards to vehicle brake defect.

- Freeland, MD, USA

The contact owns a 2010 Toyota Prius. While driving various speeds, depressing the brake pedal to come to a stop, or when driving over a bump, the vehicle failed to stop. The contact stated that the vehicle stopped after a distance, but not when prompted. All the warning indicators illuminated on the instrument panel. The vehicle was taken to gullo Toyota of conroe (45 S, conroe, tx 77304, (888) 483-0321) where it was diagnosed that the brake actuator assembly failed and needed to be replaced. The vehicle was not repaired due to the repair fees. The manufacturer informed the contact that the VIN was not included in a recall and did not offer further assistance. The approximate failure mileage was 147,000.

- Spring, TX, USA

Vsc, brake, and ABS lights are on symptoms: Cruise control will bump up the speed then "cancel" cruise control the ability to "set" cruise is rejected vsc, brake, ABS lights turn on no regen braking brakes need way more effort to slow/stop abrupt braking will cause a skid any help will be appreciated.

- Winston-Salem, NC, USA