GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 291654  Size: SH
  1. Apply the parking brake.
  2. Remove the right IP endcap. Refer to Instrument Panel Outer Trim Cover Replacement .
  3. Insert the ignition key and turn the ignition switch to RUN.
  4. Look through endcap opening in IP and locate the release button (1) on the side of the switch.
  5. Depress and hold the ignition lock cylinder retaining tab (located on the RH lower side of the ignition switch), using a flat bladed screwdriver or other suitable tool.

  6. Object Number: 291658  Size: SH
  7. Pull on the igntion cylinder to remove.

  8. Object Number: 291677  Size: SH
  9. Release the retainers from the ignition cylinder bezel.

  10. Object Number: 291678  Size: SH
  11. Slide the reader/exciter (4) and the cylinder cover (2) off from the ignition cylinder.
  12. Release the retainers from the light pipe (2) to cylinder.

Installation Procedure


    Object Number: 291678  Size: SH
  1. Install the ignition cylinder cover (2) and light pipe (3) onto ignition cylinder and engage the retainers.
  2. Slide the reader/exciter (4) onto ignition cylinder and align to slot on cylinder.
  3. Install the ignition cylinder bezel on the the cylinder and engage retainers.

  4. Object Number: 291659  Size: SH
  5. Insert the ignition lock cylinder (1) with the key installed into the ignition switch (2).
  6. Press the ignition lock cylinder into place.
  7. The lock cylinder retaining tab will produce an audible click.

  8. Check to be sure that the ignition lock cylinder is fully engaged.
  9. • Use light force to pull lock cylinder and attempt to remove it.
    • The lock cylinder should not be removeable.
  10. Turn the ignition to LOCK, then remove the key.
  11. Install the IP endcap. Refer to Instrument Panel Outer Trim Cover Replacement .
  12. Release the parking brake.
  13. Check the ignition switch for proper operation in all positions.