TL*THE CONTACT OWNS A 2008 TOYOTA PRIUS. THE CONTACT WAS DRIVING INTO A SHARP CURVE; APPROXIMATELY 5 MPH. THERE WAS AN UNEXPECTED INCREASE IN ACCELERATION. THE VEHICLE FAILED TO SLOW DOWN DURING BRAKING. SUDDENLY, THE VEHICLE ROLLED OVER AN EMBANKMENT AND ONTO THE ROAD. THERE WERE NO INJURIES. THE POLICE WAS CALLED TO THE SCENE. THE VEHICLE WAS TOWED TO AN AUTO BODY SHOP. THE FAILURE WAS MILEAGE 3,222. THE CONTACT HAD CONCERN OF THE SAFETY RISK INVOLVED.