BACKING CAR OUT OF GARAGE AND ACCELERATOR AUTOMATICALLY INCREASED HIGH SPEED. I WAS UNABLE TO STOP. CAR HIT GARAGE DOOR AND DAMAGED THE GARAGE DOOR, WALL, FRONT DRIVER SIDE QUARTER PANEL, FRONT BUMPER. APPROX $3600 CAR DAMAGE AND $1500 GARAGE DAMAGE. FORTUNATE THAT NO OTHER DAMAGE OR INJURIES OCCURRED. THIS NEVER HAPPENED BEFORE AND WAS VERY UNEXPECTED. I AM NOW AFRAID THAT THIS MAY HAPPEN AGAIN UNDER UNEXPECTED CIRCUMSTANCES WITH MORE SEVERE CONSEQUENCES. *TR