TL*THE CONTACT OWNS A 2008 CHEVROLET IMPALA. WHILE TRAVELING 70 MPH THE CONTACT SMELLED SMOKE COMING FROM INSIDE THE DRIVERS SIDE DOOR PANEL, SECONDS LATER THE CONTACT NOTICED THAT THE AIRBAG LIGHT HAD APPEARED ON THE DASHBOARD FOLLOWED BY THE DEPLOYMENT OF THE FRONT PASSENGER SIDE AIRBAG. THE VEHICLE WAS TAKEN TO THE DEALERSHIP WHERE THE WIRING WAS REPLACED IN THE DRIVER SIDE AIRBAG, HOWEVER AFTER THE REPAIR THE FAILURE STILL OCCURRED. THERE WERE NO PRIOR WARNINGS. THE FAILURE MILEAGE WAS 39000 AND THE CURRENT MILEAGE WAS 40000.