GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 291654  Size: SH
  1. Apply the parking brake.
  2. Remove the radio and heater and A/C control. Refer to Radio Replacement in Entertainment.
  3. Insert the ignition key and turn the ignition switch to RUN.
  4. Look through radio opening in I/P 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 lower right side of the ignition switch, using a flat bladed screwdriver or other suitable tool.

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

  8. Object Number: 291677  Size: SH
  9. Release the retainers from the ignition cylinder bezel.
  10. Slide the reader/exciter (4) and the cylinder cover (2) off from the ignition cylinder.
  11. 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 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. The lock cylinder retaining tab will produce an audible click.
  7. Check to be sure that the ignition lock cylinder is fully engaged.
  8. • Use light force to pull lock cylinder and attempt to remove the cylinder.
    • The lock cylinder should not be removable.
  9. Turn the ignition to LOCK, then remove the key.
  10. Install the radio/heater and A/C control. Refer to Radio Replacement in Entertainment.
  11. Release the parking brake.
  12. Check the ignition switch for proper operation in all positions.