GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Caution: Refer to Battery Disconnect Caution in the Preface section.

  1. Disconnect the battery ground cable. Refer to Battery Negative Cable Disconnection and Connection.

  2. Object Number: 1947009  Size: SH
  3. Pull downward on the centre high mounted stop lamp (CHMSL) bezel to disengage the retaining clips.
  4. Important: Force is only to be applied to CHMSL bracket not the headliner assembly.

  5. Pull the CHMSL bracket down as far as possible.

  6. Object Number: 1947011  Size: SH
  7. Remove the lens assembly (1) from the CHMSL (2) by unclipping the retaining lugs.

  8. Object Number: 1947012  Size: SH
  9. Carefully detach the PCB (1), by lifting it upwards out of the CHMSL (2).

  10. Object Number: 1947014  Size: SH
  11. Disconnect the PCB (2) electrical connector (1).
  12. Remove the PCB.

Installation Procedure


    Object Number: 1947014  Size: SH

    Important: When connecting the PCB electrical connector, make sure the tab on the connector is facing away from the PCB.

  1. Connect the PCB (2) electrical connector (1).

  2. Object Number: 1947012  Size: SH
  3. Attach the PCB (1) to the CHMSL (2), by sliding it downward into the CHMSL.

  4. Object Number: 1947011  Size: SH
  5. Install the lens assembly (1) into the CHMSL (2) by clipping in the retaining lugs. Listen for an audible click to confirm fitting.

  6. Object Number: 1947009  Size: SH
  7. Install the CHMSL bezel, by engaging the retaining clips. Listen for an audible click to confirm fitting.
  8. Connect the battery ground cable. Refer to Battery Negative Cable Disconnection and Connection.
  9. Test the stop lamp bulb for the correct operation.