TL*THE CONTACT OWNS A 2007 TOYOTA PRIUS. WHILE PARKING, THE VEHICLE SUDDENLY ACCELERATED OVER A CONCRETE CURB AND ONTO THE SIDEWALK. THERE WERE NO INJURIES. THERE WAS NO POLICE REPORT FILED. THE VEHICLE WAS TOWED TO AN AUTHORIZED DEALER WHO COULD FIND NOTHING WRONG. THE CONTACT CALLED THE MANUFACTURER WHO OFFERED NO ASSISTANCE. THE FAILURE MILEAGE WAS APPROXIMATELY 41,100.