Antilock/traction Control/electronic Limited Slip Abs Warning Light problems of the 2012 Toyota Prius

The contact owns a 2012 Toyota Prius. The contact stated that on several occasions while driving at various speeds, the brake pedal was depressed, and the vehicle started shaking and failed to slow down as intended. The brake, abs, and traction control warning lights were illuminated. On another occasion, while driving 70 mph, the brake pedal was depressed, and the vehicle began shaking and failed to slow down as intended. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was approximately 88,000.