Description & Operation

WARNING: This page is about a different car, the 2003 Pontiac Vibe. 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 and seat belt pretensioners. 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, driver and passenger side impact air bag modules, driver-side and passenger-side front end discriminating sensors, Side Impact Sensors (SIS), driver and passenger seat belt pretensioners, SIR coil assembly and AIR BAG warning light. SDM maintains a 12-16 Volt Loop Reserve (VLR) to provide deployment energy for SIR components for up to two minutes after loss of battery voltage.