GENERAL MOTORS issued a recall on the SIERRA model

On certain vehicles, a mounting stud used to secure the airbag sensing and diagnostic module (SDM) to the vehicle may have been incorrectly positioned during the assembly process. This could stress the SDM housing and cause it to fracture which could potentially allow water to enter the SDM and cause it to malfunction. If the SDM does not perform as intended, it could increase the risk of occupant injury in the event of a crash. Correction: Dealers will send the affected vehicles to a repair facility which will relocate the mounting stud and replace the SDM.