GM Service Manual Online
For 1990-2009 cars only

    Object Number: 421401  Size: SH

    Caution: This vehicle is equipped with a Supplemental Inflatable Restraint (SIR) System. Failure to follow the correct procedure could cause the following conditions:

       • Air bag deployment
       • Personal injury
       • Unnecessary SIR system repairs
    In order to avoid the above conditions, observe the following guidelines:
       • Refer to SIR Component Views in order to determine if you are performing service on or near the SIR components or the SIR wiring.
       • If you are performing service on or near the SIR components or the SIR wiring, disable the SIR system. Refer to Disabling the SIR System.

  1. Disable the inflatable restraint steering wheel module. Refer to Disabling the SIR System in SIR.
  2. Remove the upper and lower trim covers. Refer to Steering Column Trim Covers - Disassemble - Off Vehicle .
  3. Disconnect the connector (3) from the ignition switch assembly (2).
  4. Remove the 2 tapping screws (1) from the ignition switch assembly (2).
  5. Remove the ignition switch assembly (2) from the lock cylinder housing assembly.