GM Service Manual Online
For 1990-2009 cars only

High Mount Stop Lamp Replacement Sedan

Removal Procedure

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

    Important: If the high mounted stop lamp LED's are faulty and do not illuminate, the high mounted stop lamp PCB assembly must be replaced.

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

  2. Object Number: 1939455  Size: SH

    Important: Carry out for the two rear assist handles

  3. Pry open the assist handle retaining screw covers (1).
  4. Remove the assist handle to headliner retaining screws (2).
  5. Remove the assist handles (3) from the headliner.
  6. Remove the high mounted stop lamp bulb. Refer to High Mount Stop Lamp Bulb Replacement

  7. Object Number: 1947015  Size: SH
  8. Unclip the high mounted stop lamp assembly (2) from the headliner (1).

Installation Procedure


    Object Number: 1947015  Size: SH
  1. Install the new high mounted stop lamp assembly (2) to the headliner (1).
  2. Install the high mounted stop lamp bulb. Refer to High Mount Stop Lamp Bulb Replacement

  3. Object Number: 1939455  Size: SH

    Important: Carry out for the two rear assist handles

  4. Install the assist handles (3) to the headliner.
  5. Install the assist handle to headliner retaining screws (2).
  6. Tighten
    Tighten the assist handle retaining screws to 2.0  N·m (18 lb in).

  7. Close the assist handle retaining screw covers (1).
  8. Connect the battery ground cable. Refer to Battery Negative Cable Disconnection and Connection .
  9. Check all vehicle lights for correct operation.

High Mount Stop Lamp Replacement Sportwagon

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. Remove the liftgate upper moulding. Refer to Liftgate Upper Molding Replacement.

  3. Object Number: 2048805  Size: SH
  4. Remove the high mounted stop lamp to liftgate upper moulding retaining screws (2).
  5. Peel back adhesive tape (3) from top surface of the high mounted stop lamp (4), leaving the tape attached to moulding in the area under foam gasket (1).
  6. Remove the high mounted stop lamp (4) from the liftgate upper moulding (5).
  7. Cut cable tie on grommet (6), and slide washer hose (7) through grommet.

Installation Procedure


    Object Number: 2048805  Size: SH
  1. Position the NEW high mounted stop lamp (4) on the liftgate upper moulding (5).
  2. Re-apply adhesive tape (3) to top surface of the high mounted stop lamp (4).
  3. Important: Take care to ensure that the plastic rib is correctly positioned relative to visual lamp face when re-applying tape.

  4. Insert hose (7) through grommet (6), and attach new cable tie to grommet.
  5. Notice: Refer to Fastener Notice in the Preface section.

  6. Install the high mounted stop lamp (4) to liftgate upper moulding retaining screws (2).
  7. Tighten
    Tighten the bolts to 2 N·m (18 lb in).

  8. Install the liftgate upper moulding. Refer to Liftgate Upper Molding Replacement.
  9. Connect the battery ground cable. Refer to Battery Negative Cable Disconnection and Connection.