GM Service Manual Online
For 1990-2009 cars only

High Mount Stop Lamp Replacement Rear Spoiler

Removal Procedure

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


    Object Number: 1723016  Size: SH
  1. Disconnect the negative battery cable.
  2. Remove the spoiler. Refer to Rear Spoiler Replacement.
  3. Remove the screws and the spoiler CHMSL.
  4. Disconnect the electrical connector.

Installation Procedure


    Object Number: 1723016  Size: SH
  1. Connect the electrical connector.
  2. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the spoiler CHMSL with the screws and tighten to 3 N·m (27 lb in).
  4. Install the spoiler. Refer to Rear Spoiler Replacement.
  5. Connect the negative battery cable.

High Mount Stop Lamp Replacement Notchback

Removal Procedure

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


    Object Number: 1248421  Size: SH
  1. Disconnect the negative battery cable.
  2. Open the rear deck lid.
  3. Remove the screws and the center high-mounted stop lamp (CHMSL).
  4. Remove the CHMSL bulb.

Installation Procedure


    Object Number: 1248421  Size: SH
  1. Install the CHMSL bulb.
  2. Install the CHMSL with the screws.
  3. Connect the negative battery cable.

High Mount Stop Lamp Replacement Hatchback

Removal Procedure

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


    Object Number: 1248422  Size: SH
  1. Disconnect the negative battery cable.
  2. Open the hatchback door.
  3. Pry open the center high-mounted stop lamp (CHMSL) access cover with a screwdriver.
  4. Disconnect the electrical connector.
  5. Remove the screws and the CHMSL.

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1248422  Size: SH
  1. Install the CHMSL with the screws and tighten to 3 N·m (27 lb in).
  2. Connect the electrical connector.
  3. Close the CHMSL access cover.
  4. Connect the negative battery cable.