GMC 2009 Sierra - Manual (Page 365)

Front Turn Signal, Sidemarker and
Daytime Running Lamps
A. Sidemarker Lamp
B. Retainer Clip
C. Front Turn Signal Lamp D. Daytime Running
Lamp (DRL)
To replace a front turn signal, sidemarker or DRL bulb,
do the following:
1. Open the hood. See Hood Release on page 5-11
for more information.
2. Remove the headlamp assembly as described
previously. See Headlamps on page 5-52 for
more information.
3. Press the retainer clip (B), located behind the turn
signal assembly, toward the outside of the vehicle.
4. Pull the turn signal assembly out of the vehicle.
5. Press the locking release lever, turn the bulb
socket counterclockwise and remove it from the
turn signal assembly.
6. Remove the old bulb from the bulb socket.
7. Install a new bulb into the bulb socket.
8. Insert the bulb socket into the turn signal
assembly and turn it clockwise until it locks.
5-53