WHILE PULLING INSIDE OF THE CAR PORT VEHICLE ACCELERATED UNCONTROLLABLE, AND HIT A BRICK WALL. NO INJURIES REPORTED. UPON IMPACT, BOTH FRONTAL AIR BAGS DID NOT DEPLOY. THE SECOND INCIDENT OCCURRED WHEN CONSUMER WAS BACKING OUT OF THE DRIVEWAY AND VEHICLE ACCELERATED BACKWARDS .IN BOTH INCIDENTS CONSUMER STEPPED ON THE BRAKE PEDAL IN ORDER TO STOP. HOWEVER, VEHICLE CONTINUED TO SPEED. CONSUMER TURNED THE VEHICLE OFF, AND TOOK VEHICLE TO THE DEALER FOR INSPECTION. MECHANIC DETERMINED THAT THE PROBLEM COULD NOT BE DUPLICATED. CONSUMER INFORMED THE MECHANIC THAT THIS PROBLEM OCCURRED MORE THAN ONCE, AND HAD NOT BEEN RESOLVED. *AK