General Service Instructions

^ Do not expose the inflator modules to temperatures above 65°C (150°F).
^ Verify the correct replacement part number. Do not substitute a component from a different vehicle.
^ Do not repair any of the following components. Service these components by replacement only:
- The inflatable restraint Sensing And Diagnostic Module (SDM)
- The inflatable restraint I/P module
- The inflatable restraint steering wheel module
- The inflatable restraint steering wheel module coil
- The inflatable restraint Side Impact Sensors (SIS)
- The inflatable restraint side impact modules
- The seat belt pretensioners
^ Use only original GM replacement parts available from your authorized GM dealer. Do not use salvaged parts for repairs to the SIR system.
^ Discard any of the following components if the component has been dropped from a height of 91 centimeters (3 feet) or greater.
- The inflatable restraint sensing and diagnostic module (SDM)
- The inflatable restraint IP module
- The inflatable restraint steering wheel module
- The inflatable restraint steering wheel module coil
- The inflatable restraint side impact sensors (SIS)
- The inflatable restraint side impact modules
- The seat belt pretensioners
^ When you replace the SDM, verify that the following conditions are met:
- The mounting surface is clean.
- The arrow on the module points toward the front of the vehicle.
- The SDM is flat on the mounting surface, parallel to the vehicle datum line.
- The SDM fasteners are installed and tightened as specified.
^ When you replace an inflatable restraint side impact sensor (SIS), verify that the following conditions are met:
- The mounting surface is clean.
- The SIS is flat on the mounting surface.
- The SIS fasteners are installed and tightened as specified.
^ In order to avoid setting false diagnostic trouble codes, only apply power to the SIR system when one of the following two conditions is met:
- All SIR system components are properly mounted and electrically connected.
- A diagnostic procedure directs you to apply power.