Headlamp Aiming; Bulb Replacement; Halogen Bulbs; High Intensity Discharge (Hid) - GMC Sierra Denali 2017 Owner's Manual

Headlamp Aiming

Headlamp aim has been preset and
should need no further adjustment.
If the vehicle is damaged in a crash,
the headlamp aim may be affected.
If adjustment to the headlamps is
necessary, see your dealer.

Bulb Replacement

For the proper type of replacement
bulbs, contact your dealer.
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.
High Intensity Discharge
(HID) Lighting
Warning
The High Intensity Discharge
(HID) lighting system operates at
a very high voltage. If you try to
(Continued)
Vehicle Care
Warning (Continued)
service any of the system
components, you could be
seriously injured. Have your
dealer or a qualified technician
service them.
After an HID headlamp bulb has
been replaced, the beam might be a
slightly different shade than it was
originally. This is normal.

LED Lighting

This vehicle has several LED lamps.
For replacement of any LED lighting
assembly, contact your dealer.
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