A 2006 FORD MUSTANG, WITH 5400 MILES ON THE ODOMETER, WAS INVOLVED IN A TWO VEHICLE TRAFFIC COLLISION. THE DRIVER OF THE MUSTANG REAR ENDED A FORD RANGER PICKUP TRUCK AT APPROXIMATELY 40 MPH. UPON IMPACT, THE AIRBAG OF THE MUSTANG FAILED TO DEPLOY AND THE DRIVER'S SEAT BELT FAILED TO LOCK AND RESTRAIN THE DRIVER. SINCE BOTH RESTRAINT SYSTEMS FAILED, THE DRIVER OF THE MUSTANG STRUCK THE STEERING WHEEL WITH HER CHEST. EXTENSIVE FRONT END DAMAGE WAS SUSTAINED BY THE MUSTANG. AFTER THE COLLISION, THE AIRBAG WARNING LIGHT ON THE INSTRUMENT PANEL WAS FLASHING, AND THE SEAT BELT WAS FOUND FULLY EXTENDED AND WOULD NOT RETRACT. *JB