Bulb Replacement; Halogen Bulbs; Headlamps - GMC 2011 Sierra Denali Owner's Manual

10-34 Vehicle Care

Bulb Replacement

For the proper type of replacement
bulbs, see Replacement Bulbs on
page 10 37.
For any bulb changing procedure
not listed in this section, contact
your dealer.

Halogen Bulbs

WARNING
Halogen bulbs have pressurized
gas inside and can burst if you
drop or scratch the bulb. You or
others could be injured. Be sure
to read and follow the instructions
on the bulb package.

Headlamps

To replace one of these bulbs:
1. Open the hood. See Hood on
page 10 4 for more information.
2. If you are replacing the bulb on
the passenger side, remove the
Engine Air Cleaner cover. See
Engine Air Cleaner/Filter on
page 10 14 for more information.
3. Reach in and access the bulb
sockets from inside the engine
compartment.
4. Turn the bulb socket
counterclockwise to remove it
from the headlamp assembly
and pull it straight out.
5. Unplug the electrical connector
from the old bulb by releasing
the clips on the bulb socket.