The contact owns a 2004 Chevrolet Suburban. The contact stated that while driving approximately 45 mph he noticed the temperature gauge increased to the high indicator. The engine coolant hot message was displayed. The contact stated that while attempting to pull over there was an abnormal popping noise and smoke was detected. The air bag warning light illuminated and the driver's side air bag deployed without impact or crash and struck the driver in the face, chest, and right hand. There was no medical attention provided, or a fire or police report filed. The vehicle was left on the side of the road. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 200,000.