GMC 2012 Sierra - Manual (Page 428)

Black plate (42,1) GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
10-42 Vehicle Care
Center High-Mounted
Stoplamp (CHMSL) and
Cargo Lamp
A. Cargo Lamp
B. Center High-Mounted Stoplamp
(CHMSL) Bulb
To replace one of these bulbs:
1. Remove the two screws and lift
off the lamp assembly.
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 assembly by turning it
one quarter turn clockwise.
6. Reinstall the lamp assembly and
tighten the screws.
License Plate Lamp
A. License Plate Lamp Housing
B. Bulb
C. Bulb Socket
To replace one of these bulbs:
1. Using a small flat-bladed tool,
insert the blade end at the back
edge of the rear license plate
lamp housing (A).
2. Gently push forward while lifting
the back edge of the lamp
housing from the bumper
opening.