The contact owns a 2010 Toyota Prius. The contact stated that while driving 50-55 MPH, the ABS, traction control, and brake warning lights illuminated. The contact called the local dealer, but the vehicle was not diagnosed or repaired. The vehicle was taken to an independent mechanic and the contact was informed that the brake booster assembly needed to be replaced. The manufacturer was contacted, but no assistance was provided. The approximate failure mileage was 139,999.

- Hicksville, NY, USA

The contact owns a 2010 Toyota Prius. The contact stated that while driving at an undisclosed speed, the ABS and brake warning lights remained illuminated, and the brake pedal was firm while depressed. The contact stated that the vehicle failed to immediately stop while depressing the brake pedal, causing the stopping distance to be extended. The cause of the failure was not yet determined. The manufacturer and local dealer were not notified of the failure. The failure mileage was 120,000.

- La Palma, CA, USA

The contact owns a 2010 Toyota Prius. The contact stated that while driving at various speeds, the vehicle started to hesitate. The ABS and traction control warning lights were illuminated. The contact stated that there was brake message displayed. During the failure the brake pedal had to be depressed twice before the vehicle responded. The vehicle was taken to the local Service Center who diagnosed that power brake booster and master cylinder needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure and informed the contact that the vehicle did not qualify for the Extended Warranty related to the failure. The local dealer was not yet contacted. The failure mileage was 135,000.

- Oxford, FL, USA

The contact owns a 2010 Toyota Prius. The contact stated while driving approximately 25 MPH, the ABS warning light illuminated. The contact stated that the braking system was not normal however, the vehicle was drivable. The contact drove the vehicle to an independent mechanic who provided the contact with a code for an ABS fault. The vehicle was not repaired. The contact notified the manufacturer of the failure. The approximate failure mileage was 136,000.

- Escondido, CA, USA

The contact owns a 2010 Toyota Prius. The contact stated while driving at various speeds, the brake pedal was depressed however, the vehicle failed to respond as needed; causing the stopping distance to be extended. The contact stated that the ABS, brakes, and traction control warning lights were illuminated. The vehicle was taken to an independent mechanic to be diagnosed. The contact was informed that the ABS system and brake booster needed to be replaced. The local dealer was contacted and the contact was informed that NHTSA Campaign Number: 10V039000 (Service Brakes, Air) had expired. The manufacturer was notified of the failure but provided no assistance. The approximate failure mileage was 220,000.

- Bakersfield, CA, USA

The contact owns a 2010 Toyota Prius. The contact stated while exiting the highway and getting into the right lane at 60 MPH, the ABS warning light, brake light, and the traction control warning light illuminated and the vehicle lost braking functionality. The contact depressed the brake pedal with added force to get the vehicle to slow enough that he was able to get off of the highway ramp and pull over. The contact turned off and restarted the vehicle; however, the warning lights were still illuminated. The contact stated that extra force was needed to stop the vehicle. The contact drove the vehicle to his residence. The contact has not taken the vehicle to a local dealer. The vehicle was not repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 182,000.

- El Monte, CA, USA

2010 Toyota Prius. Consumer writes in regrds to defective ABS system. The consumer stated the dealer advised the brake accumulator. The consumer was informed about a recall but, it had been discontinued. The brake booster pump assembly was replaced at the owner's expense.

- Jackson, MS, USA