Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Description & Operation: Notes
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 cause Sensing and Diagnostic Module (SDM) to deploy driver-side and passenger-side air bags. A side collision of sufficient force will cause SDM to deploy side impact air bag on side of impact. Steering column and knee bolsters also absorb collision energy.
SIR system consists of SDM, driver-side and passenger-side air bag modules, driver and passenger side impact air bag modules, driver-side and passenger-side Side Impact Sensors (SIS), SIR coil assembly and AIR BAG warning light.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.