TL* THE CONTACT OWNED A 2002 CHEVROLET SILVERADO 2500 HD. WHILE DRIVING APPROXIMATELY 75 MPH, A MESSAGE INDICATING THAT THE ENGINE OVERHEATED DISPLAYED AND SMOKE APPEARED UNDER THE HOOD OF THE VEHICLE. THE FLAMES QUICKLY SPREAD TO THE CABIN OF THE VEHICLE. WHILE THE FLAMES WERE INSIDE THE CABIN, THE CONTACT ATTEMPTED TO EXIT THE VEHICLE BUT THE DRIVER SIDE SEAT BELT WOULD NOT IMMEDIATELY UNLOCK. THE SEAT BELT FINALLY UNLOCKED, BUT THE DRIVER SIDE DOOR WOULD NOT UNLOCK. THE DOOR EVENTUALLY UNLOCKED AND THE CONTACT WAS ABLE TO EXIT THE VEHICLE. THE FIRE DEPARTMENT WAS CALLED TO THE SCENE TO EXTINGUISH THE FLAMES. THE VEHICLE WAS DESTROYED. THERE WERE NO INJURIES. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 247,433.