TL* THE CONTACT OWNS A 2004 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT WHILE DRIVING AT 45 MPH, THE STEERING WHEEL AIR BAG DEPLOYED INDEPENDENTLY ONTO THE CONTACT'S CHEST. THE CONTACT WAS CONCERNED THAT THE STEERING WHEEL AIR BAG DEPLOYED WITHOUT THE VEHICLE BEING INVOLVED IN A CRASH. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE FAILURE WAS UNABLE TO BE DETERMINED. THE MANUFACTURER SENT AN ENGINEER TO INSPECT THE VEHICLE, BUT THE CAUSE OF THE FAILURE COULD NOT BE DETERMINED. THE VEHICLE WAS NOT REPAIRED. THE VIN WAS NOT AVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS 11,000.