THE INERTIA SWITCH LOCATED AT THE TOP OF THE PASSENGER FLOOR BOARD ENGAGES AT THE SLIGHTED BUMP. I'VE HAD THIS CAR FOR 5 YEARS AND CONTINUE TO GET FALSE INFORMATION FROM THE FORD DEALERSHIP ABOUT AVENUES OF RECOURSE OR RECTIFICATION. ITS A FAULTY DESIGN FOR THE INERTIA SWITCH TO BE LOCATED NEAR POSSIBLE CONTACT WITH A PASSENGER. LEGAL RECOURSE WILL BE PURSUED. *TR