GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the lower IP trim panel. Refer to Instrument Panel Assembly Replacement in Instrument Panel, Gages and Console.

  2. Object Number: 645392  Size: SH
  3. Remove the fasteners (2) securing the heater A/C duct.
  4. Move the heater A/C duct aside in order to gain access to the panel dimming control module bracket.

  5. Object Number: 645110  Size: SH
  6. Remove the module bracket from the IP.
  7. Remove the panel dimming module (1) from the bracket.
  8. Disconnect the electrical connectors from the module.

Installation Procedure


    Object Number: 645110  Size: SH
  1. Connect the electrical connectors to the module.
  2. Install the module (1) to the bracket.
  3. Install the bracket to instrument panel.

  4. Object Number: 645392  Size: SH
  5. Reposition the heater A/C duct.
  6. Install the fasteners (2) securing the heater A/C duct.
  7. Install the lower IP trim panel. Refer to Instrument Panel Assembly Replacement in Instrument Panel, Gages and Console.