GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the rear spoiler. Refer to Rear Spoiler Replacement .
  2. Invert the spoiler and place on a clean dry, protected surface.

  3. Object Number: 1872832  Size: SH
  4. Remove the spoiler to high mounted stop lamp screws (1).
  5. Disengage the washer hose from the spoiler.
  6. Disengage the electrical connector (2) from the spoiler bracket.
  7. Lift the high mounted stop lamp (3) from the spoiler.

  8. Object Number: 1872833  Size: SH
  9. Remove the washer nozzle screws (1).
  10. Remove the rear washer nozzles (3) from the high mounted stop lamp (4) assembly.
  11. Remove the high mounted stop lamp assembly (4).

Installation Procedure


    Object Number: 1872833  Size: SH
  1. Install the washer nozzles (3) into the rear high mounted stop lamp assembly (4).
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the rear window washer nozzle screws (1).
  4. Tighten
    Tighten the screws to 2 N·m (18 lb in).


    Object Number: 1872832  Size: SH
  5. Position the high mounted stop lamp (3) to the rear spoiler bracket.
  6. Install the screws (1) to secure the high mounted stop lamp (3) to the rear spoiler bracket.
  7. Tighten
    Tighten the screws 2 N·m (18 lb in).

  8. Position and secure the high mounted stop lamp electrical connector (2) to the spoiler bracket.
  9. Secure the washer hose to the spoiler.
  10. Install the rear spoiler to the vehicle. Refer to Rear Spoiler Replacement .

Removal Procedure

  1. Remove the rear spoiler. Refer to Rear Spoiler Replacement.
  2. Invert the spoiler and place on a clean dry, protected surface.

  3. Object Number: 1872832  Size: SH
  4. Remove the spoiler to high mounted stop lamp screws (1).
  5. Disengage the washer hose from the spoiler.
  6. Disengage the electrical connector (2) from the spoiler bracket.
  7. Lift the high mounted stop lamp (3) from the spoiler.

  8. Object Number: 1872833  Size: SH
  9. Remove the washer nozzle screws (1).
  10. Remove the rear washer nozzles (3) from the high mounted stop lamp (4) assembly.
  11. Remove the high mounted stop lamp assembly (4).

Installation Procedure


    Object Number: 1872833  Size: SH
  1. Install the washer nozzles (3) into the rear high mounted stop lamp assembly (4).
  2. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the rear window washer nozzle screws (1). Tighten the screws to 2 N·m (18 lb in).

  4. Object Number: 1872832  Size: SH
  5. Position the high mounted stop lamp (3) to the rear spoiler bracket.
  6. Install the screws (1) to secure the high mounted stop lamp (3) to the rear spoiler bracket. Tighten the screws 2 N·m (18 lb in).
  7. Position and secure the high mounted stop lamp electrical connector (2) to the spoiler bracket.
  8. Secure the washer hose to the spoiler.
  9. Install the rear spoiler to the vehicle. Refer to Rear Spoiler Replacement.