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:

    Wiper Blade Replacement
    Windshield wiper blades should be inspected for wear and cracking. See Maintenance Schedule on page 11‑3 for more information. Replacement blades come in different types and are removed in di ...

    Blizzard Conditions
    Being stuck in snow can be a serious situation. Stay with the vehicle unless there is help nearby. If possible, use the Roadside Assistance Program (U.S. and Canada) on page 13‑8 or Roadside As ...

    Diagnostics
    OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the vehic ...