TL*THE CONTACT OWNS A 2007 LEXUS GS350. WHILE PARKED, THE VEHICLE SUDDENLY ACCELERATED AND CRASHED INTO A BRICK WALL, WITHOUT ANY PRESSURE TO THE ACCELERATOR PEDAL. THE DEALER WAS UNABLE TO DETERMINE THE CAUSE OF FAILURE. THE CURRENT MILEAGE WAS 4,000 AND FAILURE MILEAGE WAS 200.