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.
System Operation Check
An instrument cluster air bag light is used to indicate readiness of system. When ignition switch is first turned on, this light should glow for about 4 seconds, then go out. During this time, the air bag control unit performs an electronic test of system.
If the air bag light flashes for a further 15 seconds, this signals that the air bags or seat belts pretensioners are electronically disabled. If air bag light does not glow when ignition is on, or does not go out after about 4 seconds, a fault probably exists in system. If a fault occurs while ignition is on, it is stored in fault memory.
If warning light glows or flickers while driving, air bag system should be tested. Diagnose and repair as necessary.
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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.