GM Service Manual Online
For 1990-2009 cars only

Important: Refer to SIR Service Precautions before disabling the SIR system.

  1. Turn the steering wheel until the vehicle's wheels are pointing straight ahead.
  2. Turn OFF the ignition.
  3. Remove the key from the ignition.
  4. Important: With the AIR BAG Fuse removed and the ignition ON, the AIR BAG indicator illuminates. This is normal operation and does not indicate an SIR system malfunction.

  5. Remove the AIR BAG Fuse from the IP fuse block.
  6. Remove the driver knee bolster. Refer to Driver Knee Bolster Replacement in Instrument Panel, Gauges and Console.

  7. Object Number: 399181  Size: SH
  8. Remove the connector position assurance (CPA) from the steering wheel module yellow 2-way connector located at the base of the steering column.
  9. Disconnect the steering wheel module yellow 2-way connector located at the base of the steering column.

  10. Object Number: 399187  Size: SH
  11. Remove the passenger knee bolster. Refer to Passenger Knee Bolster Replacement in Instrument Panel, Gauges and Console.
  12. Remove the CPA from the IP module yellow 2-way connector located under the instrument panel extension.
  13. Disconnect the IP module yellow 2-way connector located under the instrument panel extension.