GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 477508  Size: SH
  1. Remove the following components from the instrument panel:
  2. 1.1. The 3 screws (2)
    1.2. The IP steering column opening trim plate (1)

    Object Number: 468541  Size: SH
  3. Release the upper and lower retaining tabs behind the instrument panel which secure the IP lamp dimmer control (4).
  4. Slide the dimmer control (4) from the instrument panel in order to disconnect the electrical connector.
  5. Disconnect the dimmer control electrical connector.
  6. Remove the dimmer control (4) from the vehicle.

Installation Procedure


    Object Number: 468541  Size: SH
  1. Connect the IP lamp dimmer control electrical connector.
  2. Install the dimmer control (4) to instrument panel. Ensure that the retaining tabs are fully engaged.

  3. Object Number: 477508  Size: SH
  4. Install the IP steering column opening trim plate (1) to the instrument panel. Secure the trim plate with the 3 screws (2).