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High Mount Stop Lamp Replacement (Utility)

1. Ensure the headlamp switch is in the OFF position.
2. Remove the upper garnish molding at the headliner. (see Below)
3. Remove the right and left side rear window garnish molding.
4. Lower the rear of the headliner in order to access the electrical connector.
   
   
   
5. Disconnect the electrical connector (4).
6. Attach a short piece of wire to the high mounted stop lamp connector in order to assist the guiding of the harness through the body.
7. Remove the high mounted stop lamp screws (2).
8. Remove the high mounted stop lamp (1) from the vehicle.

Installation

1. Attach the harness to the guide wire.
2. Using the guide wire, pull the lamp wire through the hole in the roof panel.
3. Remove the guide wire.

    

   
   
   
   
4. Install the high mounted stop lamp (1) to the vehicle with the screws (2).

   Tighten
   Tighten the screws to 2 N·m (17 lb in).

5. Connect the electrical connector (4).
6. Install the headliner.
7. Install the left and right side rear window garnish molding.
8. Install the rear upper garnish molding.

Rear Upper Garnish Molding Replacement (Tahoe/Yukon/Escalade/Suburban)