CONSUMER HAS HAD 2 INCIDENTS WITH VEHICLE ROLLING BACKWARDS AFTER BEING PUT IN PARK. DURING FIRST INCIDENT CONSUMER HAD VEHICLE IN PARK, VEHICLE TURNED OFF AND GOT OUT. CONSUMER HAD TO RUN BACK TO VEHICLE BECAUSE IT WAS ROLLING BACKWARDS, AND HIT HER SON'S VEHICLE BEFORE SHE COULD GET TO IT. SECOND INCIDENT WAS ON 11TH OF MAY, AGAIN CONSUMER HAD VEHICLE IN PARK; BUT, THIS TIME WAS STILL INSIDE VEHICLE. ONLY WAY OF STOPPING WAS TO PUSH DOWN OF BRAKES AND PULL UP EMERGENCY BRAKE. POLICE HAD TOWING COMPANY TO COME OUT AND LOOK. THEY STATED EVERYTIME VEHICLE WENT IN REVERSE OR PARK IT LOCKED GEARS UP. TRANSMISSION WAS ALL OVER THE DRIVEWAY, AND THEY ALSO FOUND GEAR CABLE WAS CUT. CONSUMER COMPLAINED OF THIS PROBLEM SINCE PURCHASE. DEALER URGED CONSUMER TO PUT PARKING BRAKE ON FOR EACH NORMAL STOP. CONSUMER WAS TRYING TO GET FORD TO COOPERATE WITH PROBLEM.*AK