Headlamp Aiming; Bulb Replacement; Led Lighting; Headlamps, Front Turn Signal, Sidemarker And Parking Lamps - GMC 2014 Sierra Owner's Manual

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.
For the proper type of replacement
bulbs, see
.
For any bulb changing procedure
not listed in this section, contact
your dealer.
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.
This vehicle has several LED lamps.
For replacement of any LED lighting
assembly, contact your dealer.
1. Front Turn Signal/Sidemarker/
Parking Lamp
2. High/Low-Beam Headlamp
See your dealer for passenger side
replacement.