Exterior Lighting - GMC 2015 Sierra Owner's Manual

There are reading lamps in the
overhead console and the headliner,
if equipped. To operate, the ignition
must be in the ACC/ACCESSORY
or ON/RUN position or using
Retained Accessory Power (RAP).
Press or next to each reading
lamp to turn it on or off.
For more information about interior
lighting, see Instrument Panel
Illumination Control on page 6-6.

Exterior Lighting

The exterior lamp control is on the
instrument panel to the left of the
steering wheel.
O
: Turns off the automatic
headlamps and Daytime Running
Lamps (DRL). Turn the headlamp
control to the off position again to
turn the automatic headlamps or
DRL back on.
For vehicles first sold in Canada, off
will only work when the vehicle is in
P (Park).
AUTO: Automatically turns on
the headlamps, parking lamps,
taillamps, instrument panel lights,
In Brief
roof marker lamps (if equipped),
front/rear sidemarker lamps, and
license plate lamps.
;
: Turns on the parking lamps
including all lamps, except the
headlamps.
5
: Turns on the headlamps
together with the parking lamps and
instrument panel lights.
See:
Exterior Lamp Controls on
page 6-1.
Daytime Running Lamps (DRL)
on page 6-3.
Fog Lamps on page 6-5.
Windshield Wiper/Washer
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