THIS HAS HAPPENED 4 TIMES SAME PROBLEM, 1ST TIME VAN WAS NOT RUNNING POPPED OUT OF GEAR WENT DOWN THE ROAD BACKWARDS AND HIT A HOME NOT MUCH DAMAGE TO EITHER THE HOUSE OR THE VAN. NOT MOVING FAST ENOUGH, THE SECOND TIME MOVED ABOUT A FOOT ON LEVEL GROUND , 3RD TIME RUNNING IN A FLAT DRIVEWAY NO ONE NEAR DRIVERS SEAT CAR WENT OUT OF GEAR MOVED FORWARD AND HIT A PARKED CARS MIRROR, DIDN'T DAMAGE THE MIRROR BUT DISTROYED THE FENDER ON THE VAN. , THE 4TH TIME WENT OUT OF GEAR WHILE PARKED NO ONE IN OR NEAR CAR. DIDN'T MOVE BECAUSE THE EMERGANCY BRAKE WAS SET. IS BEING INVESTIGATED BY GENERAL MOTORS.*AK