I WAS GOING DOWN A SLIGHT HILL AT APPROXIMATELY 20MPH WITHOUT BRAKES BECAUSE THE VEHICLE WAS STAYING AT A STEADY SPEED WITHOUT THEM. SUDDENLY THE VEHICLE STARTED ACCELERATING ON ITS OWN. I BRIEFLY APPLIED THE BRAKES AND THEN LET UP ON THE BRAKES. THE VEHICLE AGAIN STARTED TO ACCELERATE. ABOUT THAT TIME I NOTICED A YELLOW WRENCH ICON (SIMILAR TO ENGINE LIGHT). WHILE I WAS LOOKING AT THE WARNING LIGHT THE VEHICLE CAME DANGEROUSLY CLOSE TO THE VEHICLE IN FRONT OF ME. THIS IS THE 4TH TIME THIS HAS HAPPENED WITH THIS VEHICLE OVER A PERIOD OF ABOUT A YEAR. BASICALLY THE VEHICLE ACCELERATES TO 30MPH AND STAYS THERE REGARDLESS OF WHAT YOU DO WITH THE ACCELERATOR. IN ORDER TO STOP IT FROM ACCELERATING YOU NEED TO CONSTANTLY RIDE THE BRAKES. I HAVE ATTEMPTED TO HAVE THE VEHICLE REPAIRED AFTER EACH INCIDENT. THE FORD DEALERSHIP APPARENTLY HAS NO IDEA WHAT THE PROBLEM IS AND HAS NO IDEA HOW TO PREVENT IT FROM HAPPENING AGAIN. THE LAST TIME I WAS IN ALL THEY DID WAS CHANGE THE 12V BATTERY. *TR