Front Seat Belt Warning Light problems of the 2004 GMC Envoy

The contact owns a 2004 GMC Envoy slt. The contact stated that the passenger air bag and seat belt warning light illuminated while the seat was unoccupied. The warning light remained illuminated even after the seat became occupied and the failure would first recur intermittently until the failure became constant. The vehicle was taken to an authorized dealer for the failure. The dealer replaced the safety inflatable restraint sensor and diagnostic modular. The failure and current mileage was 45,000. Updated 05/05/lj updated 06/03/11.