GM Service Manual Online
For 1990-2009 cars only

Daytime Running and Fog Lamp Assembly Replacement Avalanche

Removal Procedure

  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Disconnect the electrical harness connectors.
  3. Caution: Halogen bulbs contain gas under pressure. Handling a bulb improperly could cause it to shatter into flying glass fragments. To help avoid personal injury:

       • Turn off the lamp switch and allow the bulb to cool before changing the bulb.
       • Leave the lamp switch OFF until the bulb change is complete.
       • Always wear eye protection when changing a halogen bulb.
       • Handle the bulb only by its base. Avoid touching the glass.
       • Keep dirt and moisture off the bulb.
       • Properly dispose of the used bulb.
       • Keep halogen bulbs out of the reach of children.

  4. Remove the bulbs from the daytime running and fog lamp assembly by turning the bulb 1/4 turn counterclockwise.

  5. Object Number: 801963  Size: SH
  6. Remove the fasteners retaining the lamp assembly to the fascia.
  7. Remove the lamp assembly from the vehicle.

Installation Procedure


    Object Number: 801963  Size: SH
  1. Install the lamp assembly to the vehicle.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the fasteners to the lamp assembly.
  4. Tighten
    Tighten the fasteners to 1.1 N·m (10 lb in).

  5. Install the bulbs to the daytime running and fog lamp assembly by turning the bulb 1/4 turn clockwise.
  6. Connect the electrical harness connectors.
  7. Lower the vehicle.
  8. Re-aim the fog lamps. Refer to Fog Lamp Aiming .