Center High-Mounted; Stoplamp (Chmsl) And Cargo Lamp - GMC Sierra 2015 Owner's Manual

9. Verify the retainer ring is in the
proper position. If the retainer
ring is out of position, it will not
engage. Reset the retainer by
pulling it forward with a tool.
10. Push the rear lamp assembly
straight in until it is seated
against the vehicle.
11. Make sure the rear lamp
assembly is flush with the
box side.
12. Reinstall the two rear lamp
assembly screws.

Center High-Mounted

Stoplamp (CHMSL) and
Cargo Lamp
1. Cargo Lamp Bulbs
2. Center High-Mounted
Stoplamp (CHMSL) Bulb
Vehicle Care
To replace one of these bulbs:
1. Remove the two screws and lift
off the lamp assembly.
2. Turn the bulb socket
counterclockwise and pull it
straight out.
3. Pull the bulb straight out from
the socket.
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