BEGINNING IN APRIL 2007, MY 2003 FORD ESCAPE XLT (CURRENT MILEAGE 118754) EXPERIENCED AN INTERMITTENT PROBLEM WITH THE AIR BAG WARNING LIGHT. IF THE POWER DRIVER'S SEAT HAD BEEN MOVED, THEN THE LIGHT WOULD APPEAR AND FLASH ON THE INSTRUMENT PANEL FOR A PERIOD OF TIME, THEN DISAPPEAR WITHOUT ANY ACTION TAKEN. THIS SERIES OF EVENT HAPPENED 2-3 TIMES BETWEEN APRIL - JUNE, 2007. THE LAST TIME THE PROBLEM SURFACED WAS JUNE 25, 2007. THE LIGHT WAS FLASHING WHEN I STARTED MY VEHICLE ON JUNE 26, 2007. APPROXIMATELY 5 MINUTES AFTER STARTING MY VEHICLE ON THAT DATE, I WAS STOPPED AT AN INTERSECTION WHEN A TRUCK APPROACHING FROM MY LEFT LOST ITS TRAILER. THE TRAILER CRASHED INTO THE FRONT DRIVER'S SIDE OF MY VEHICLE AT APPROXIMATELY 60 MILES PER HOUR. NONE OF THE AIR BAGS WITHIN MY VEHICLE DEPLOYED. MY VEHICLE SUSTAINED SEVERE DAMAGE TO THE FRONT END. ALTHOUGH NO INJURIES WERE SUSTAINED AS A RESULT OF THIS ACCIDENT, I BELIEVE THAT AN IMPACT OF THIS FORCE INTO MY FRONT BUMPER SHOULD HAVE DEPLOYED MY FRONT AIR BAGS, AND THAT THE FAILURE TO DEPLOY CAN BE ATTRIBUTED TO THE FAULTY SENSOR ON MY INSTRUMENT PANEL.