Brake Antilock Control Unit/module problems of the 2003 Toyota Prius

The contact owns a 2003 Toyota Prius. Whenever the contact would attempt to apply the brakes while traveling over a bumpy or slippery surface the contact noticed that the brakes would not fully engage increasing stopping distance. The vehicle was taken to the dealer where the contact was informed that the failure could not be reproduced. The contact has noticed the failure since the day the vehicle was purchased. The current and failure mileages were 109,000.

The contact owns a 2003 Toyota Prius. The contact was driving approximately between 25-35 mph over uneven pavement when pressure was applied to the brake pedal and the vehicle failed to stop until excessive force was applied to the brake pedal. The vehicle resumed normal operation. The failure continued to occur. The vehicle was taken to an authorized dealer and the technician was unable to duplicate the failure. The VIN was unavailable. The failure mileage was 100.