Chevrolet 2006 Avalanche Owner's Manual page 404

A. Low-Beam Headlamp
B. High-Beam Headlamp
6. Turn the bulb connector counterclockwise and pull it
out of the assembly.
7. Unplug the electrical connector from the old bulb.
8. Plug in the electrical connector to the new bulb.
9. Place the connector with the new bulb into
the headlamp assembly and turn it clockwise until it
is tight.
10. Put the headlamp assembly back into the vehicle
and reinstall the two pins.
11. Place the inboard end of the turn signal/parking
lamp assembly into the pocket.
12. Push the outboard side of the assembly in until the
release clip snaps into place.
5-54
Vehicles without Body-Side Cladding
To replace a headlamp bulb, do the following:
1. Open the hood. See Hood Release on page 5-12
for more information.
2. Remove the pin on the headlamp assembly by
turning the pin up and pulling it straight out.
3. Pull the headlamp assembly out.