Center High-Mounted Stoplamp (CHMSL) and Cargo Lamp

GMC Sierra / GMC Sierra Owners Manuals / Vehicle Care / Bulb Replacement / Center High-Mounted Stoplamp (CHMSL) and Cargo Lamp

To replace one of these bulbs:

1. Remove the two screws and lift off the lamp assembly.

1. Remove the two screws and lift off the lamp assembly.

B. Center High-Mounted Stoplamp (CHMSL) Bulb A. Cargo Lamp
B. Center High-Mounted Stoplamp (CHMSL) Bulb

2. On the reverse side of the lamp assembly, remove the bulb socket by turning it one quarter turn counterclockwise and pull it straight out.

3. Remove the bulb by pulling it straight out of the socket.

4. Install the bulb by pushing the bulb straight into the socket.

5. Install the bulb socket into the lamp asembly by turning it one quarter turn clockwise.

6. Reinstall the lamp assembly and tighten the screws.

    See also:

    What to Use
    To determine what kind of fluid to use, see Recommended Fluids and Lubricants on page 11‑12. Always use the proper fluid. Notice: Use of the incorrect fluid may damage the vehicle and the damag ...

    Air Conditioning
    (Air Conditioning): Press to turn the air conditioning (A/C) on and off. An indicator light comes on when A/C is on. The A/C does not work when the outside temperature is below 4°C (40°F). If is ...

    Oil Pressure
    This display shows the oil pressure in either kilopascals (kPa) or pounds per square inch (psi). ...