I WAS TURNING INTO A PARKING LOT WHERE I THEN PROCEEDED TO PARK MY CAR INTO A PARKING SPOT. I PUT THE CAR IN PARK AND THE CAR CONTINUED TO MOVE FORWARD. THE CAR ENDED UP HITTING THE BUILDING THAT WAS 2 FEET IN FRONT OF ME. THE CAR THEN REVERSED ON IT'S OWN AND CHARGED FORWARD TO HIT THE BUILDING AGAIN. THE SECOND TIME IT HIT THE BUILDING THE AIR BAG WENT OFF. I TRIED TO PUT THE CAR IN REVERSE MANUALLY TO PREVENT IT FROM HITTING THE BUILDING. WHEN I DID THIS , THE CAR ACCELERATED BACKWARDS .