GMC 2005 Sierra 1500 Pickup, Owner'S Manual, Page: 458 / 574

A. Low-Beam Headlamp
B. High-Beam Headlamp
2. Pull the headlamp assembly out.
3. Unplug the electrical connector.
4. Turn the old bulb counterclockwise and remove it
from the headlamp assembly.
5. Put the new bulb into the assembly and turn it
clockwise until it is tight. Use care not to touch
the bulb with your fingers or hands.
6. Plug in the electrical connector.
7. Put the headlamp assembly back into the vehicle.
8. Install and tighten the two pins. If your vehicle
has one pin, install it and turn it into the locking
feature.
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. Remove the headlamp assembly as described
previously. See Headlamps on page 5-63 for
more information.
5-64