GMC 2012 Sierra - Manual (Page 202)

Black plate (2,1) GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
6-2 Lighting
The exterior lamps control has
four positions:
O (Off): 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,
the off position will only work when
the vehicle is shifted into P (Park).
AUTO (Automatic): Automatically
turns on the headlamps at normal
brightness, together with the
following:
. Parking Lamps
. Instrument Panel Lights
. Taillamps
. License Plate Lamps
. Roof Marker Lamps
(If Equipped)
When the vehicle is turned off and
the headlamps are in AUTO, the
headlamps may automatically
remain on for a set time. The time of
the delay can be changed using the
DIC. See Driver Information Center
(DIC) on page 5‑30
; (Parking Lamps): Turns on the
parking lamps together with the
following:
. Instrument Panel Lights
. Taillamps
. License Plate Lamps
. Roof Marker Lamps
(If Equipped)
2 (Headlamps): Turns on the
headlamps together with the
following:
. Parking Lamps
. Instrument Panel Lights
. Taillamps
. License Plate Lamps
. Roof Marker Lamps (If
Equipped)
When the headlamps are turned
on while the vehicle is on, the
headlamps turn off automatically
10 minutes after the ignition is
turned off. When the headlamps are
turned on while the vehicle is off,
the headlamps will stay on for
10 minutes before automatically
turning off to prevent the battery
from being drained. Turn the
headlamp control to off and then
back to the headlamp on position to
make the headlamps stay on for an
additional 10 minutes.
Push the turn signal/multifunction
lever toward the instrument panel to
change the headlamps from low
beam to high beam.
Exterior Lamps Off
Reminder
For vehicles with a radio, a reminder
chime sounds when the headlamps
or parking lamps are manually
turned on, the ignition is off, and a
door is open. To disable the chime,
turn the lamp off.