Description & Operation

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Accidental air bag deployment is possible. Personal injury may result. To avoid accidental air bag deployment or injury, read and carefully follow all WARNINGS and AIR BAG SAFETY PRECAUTIONS .

Supplemental Inflatable Restraint (SIR) system is designed to supplement protection provided by driver-side and passenger-side seat belts. A frontal collision of sufficient force will deploy driver-side and passenger-side air bag modules. A side collision of sufficient force will deploy side impact air bag module on side of impact. Steering column and knee bolsters also absorb collision energy.

SIR system consists of Sensing and Diagnostic Module (SDM), driver-side and passenger-side air bag modules, Electronic Frontal Sensors (EFS), driver and passenger side impact air bag modules, Side Impact Sensors (SIS), driver-side and front passenger Seat Position Sensors (SPS), Passenger Presence System (PPS), SIR coil assembly and AIR BAG warning light. SDM maintains a 23 Volt Loop Reserve (VLR) to provide deployment energy for up to one minute after loss of battery voltage.