Download ’08-09 Hummer H2 Supplemental Inflatable Restraint (SIR) System – Some customers could touch upon an intermittent or current AIR BAG indicator or lamp being illuminated on the instrument panel cluster (IPC).1. Perform the Diagnostic System Verify-Vehicle. 2. Identify the DTC that’s set AND assessment the DTC Descriptor in the corresponding diagnostic procedure. Refer to Diagnostic Hassle Code (DTC) Checklist-Automobile in SI. 3. Utilizing the information from the DTC Descriptor, decide the placement of the affected electrical connector. Consult with SIR Identification Views and the Master Electrical Part Listing in SI. 4. Flip OFF the ignition and disable the supplemental inflatable restraint (SIR) system. Refer to SIR Disabling and Enabling in SI. 5. BEFORE removing, INSPECT the CPA retainer on the electrical connector.