TL* THE CONTACT OWNS A 2007 TOYOTA SIENNA. WHILE THE VEHICLE WAS PARKED ON A SLIGHT INCLINE WITHOUT THE KEY IN THE IGNITION, THE CONTACT HEARD AN ABNORMAL NOISE. THE VEHICLE ROLLED DOWN A HILL AND CRASHED INTO A HOUSE. THERE WERE NO INJURIES AND A POLICE REPORT WAS NOT FILED. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC, BUT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 100,000.