WHILE DRIVING 70MPH ON THE HIGHWAY OUR VEHICLE WAS SUDDENLY SMASHED INTO BY ANOTHER VEHICLE. THE OTHER VEHICLE SMASHED INTO US AT 45 DEGREE ANGLE AND FROM BEHIND ON THE DRIVER'S SIDE OF OUR VEHICLE WHILE GOING APPROX. 70MPH ITSELF. THE OTHER VEHICLE HIT OUR VEHICLE PRECISELY WHERE OUR VEHICLE'S OWNER'S MANUAL DESCRIBES OUR SIDE IMPACTS AIR BAG SENSORS TO BE BUT OUR DRIVER'S SIDE AIRBAG DID NOT DEPLOY. NO AIRBAGS DEPLOYED AT ALL. FORD MOTOR COMPANY HAS SERVICED OUR DRIVER'S SIDE AIRBAG SEVERAL TIMES, AND IN THIS CASE JUST WEEKS PRIOR TO OUR ACCIDENT AND DEPLOYMENT FAILURE. FORD HAS SERVICED OUR DRIVER'S SIDE AIRBAG ON 3 SEPARATE OCCASIONS, 2 OF WHICH WE HAVE DOCUMENTATION FOR. THE MISSING DOCUMENTATION IS THE RESULT OF A CHANGE IN OWNERSHIP OF ONE OF THE DEALERSHIPS, AND CHANGE IN COMPUTER RECORDS.