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HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 473 (SUPPLEMENTAL INFLATABLE RESTRAINT SYSTEM)DESCRIPTION & OPERATION
2004 Oldsmobile Bravada AWD

Description & Operation

2004 Oldsmobile Bravada AWDSECTION Description & Operation
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. 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. Steering column and knee bolsters also absorb collision energy. SDM maintains a 23 Volt Loop Reserve (VLR) to deploy air bag modules for up to one minute after loss of battery voltage.

SIR system consists of Sensing and Diagnostic Module (SDM), driver-side and passenger-side single stage or dual stage air bag modules, passenger-side air bag module disable switch, front end discriminating sensor, also known as Electronic Frontal Sensor (EFS), driver and passenger front Seat Position Sensors (SPS), Passenger Presence System (PPS), SIR coil assembly and AIR BAG warning light.

RENDER: 1.0x

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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.