GMC 2012 GMC Sierra Denali, Owner'S Manual, Page: 374 / 502

Black plate (36,1)
GMC Sierra Denali Owner Manual - 2012 - 2nd - 11/10/11
10-36 Vehicle Care
Taillamps, Turn Signal,
Stoplamps, and Back-Up
Lamps
To replace a taillamp assembly bulb:
1. Open the tailgate. See Tailgate
on page 2 ‑ 9 for more
information.
2. Remove the two taillamp
assembly screws near the
tailgate latch.
3. Pull the taillamp assembly
rearward until the outer pins on
the taillamp assembly disengage
from the vehicle.
A. Stoplamp/Turn Signal Lamp/
Taillamp
B. Back-up Lamp
C. Sidemarker Lamp
4. Turn the bulb socket
counterclockwise to remove it
from the taillamp housing.
5. Pull the old bulb straight out
from the socket.
6. Press a new bulb into the socket
and turn the socket clockwise
into the taillamp housing.
7. Reinstall the taillamp assembly.
Center High-Mounted
Stoplamp (CHMSL) and
Cargo Lamp
To replace one of these bulbs:
1. Remove the screws and lift off
the lamp assembly.