GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC K Sierra - 4WD 🢒 Body and Accessories 🢒 Lighting Systems 🢒 High Mount Stop Lamp Replacement

Removal Procedure
  1. Ensure the headlamp switch is in the OFF position.

    2. Object Number: 348720 Size: SH
  2. Remove the high mounted stoplamp screws.
  3. Remove the high mounted stoplamp from the vehicle.
  4. Disconnect the electrical connector.

Installation Procedure

    Object Number: 348720 Size: SH
  1. Connect the electrical connector.
  2. Install the high mounted stoplamp to the vehicle.

    3. 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.

  3. Install the screws.

    4. Tighten
    Tighten the high mounted stoplamp screws to 2 N·m (17 lb in).

  4. Inspect the operation.