AFTER THE PURCHASE OF THIS VEHICLE, ON TWO OCCASIONS THE CAR WAS IN THE PARK POSITION [P], BUT, MOVED FORWARD. DURING THE FIRST INCIDENT, MY WIFE HAD PARKED THE CAR AT LOCAL STORE. WHEN SHE WENT TO LEAVE THE VEHICLE THE CAR ROLLED INTO A NEARBY FENCE. DURING THE SECOND INCIDENT, THE GRAND CHEROKEE AFTER BEING PLACED INTO PARK ROLLED INTO OUR YARD. THE PROBLEM WITH THE CAR'S PARK POSITION DOES NEED TO BE LOOKED AT; FOR MY WIFE OR MYSELF COULD HAVE BEEN INJURED IF WE HAD STARTED TO LEAVE THE CAR. IN THE FIRST INCIDENT THERE WAS $1,000 IN DAMAGE TO THE CAR. IN THE SECOND INCIDENT THERE WAS NO DAMAGE TO THE VEHICLE. THANK YOU FOR YOUR HELP. *TR