GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1999 🢒 Tahoe - 2WD 🢒 Body and Accessories 🢒 Lighting Systems 🢒 High Mount Stop Lamp Replacement

Removal Procedure
  1. Make sure the headlamp switch is in the OFF position.
  2. Remove the upper garnish molding at the headliner.
  3. Pull back the right and left side rear window garnish molding.
  4. Lower the rear of the headliner in order to access the electrical connector.

    5. Object Number: 277175 Size: SH
  5. Disconnect the electrical connector (4).
  6. Attach a short piece of wire to the high mounted stoplamp connector in order to assist the guiding of the harness through the body.
  7. Remove the high mounted stoplamp screws (2).
  8. Remove the high mounted stoplamp (1) from the vehicle.

Installation Procedure
  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. Object Number: 277175 Size: SH

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

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

    5. Tighten
    Tighten the high mounted stoplamp 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.