Flash-To-Pass; Daytime Running; Lamps (Drl); Automatic Headlamp - GMC Sierra Denali 2500HD 2014 Owner's Manual

GMC Sierra Denali 2500HD and 3500HD (GMNA-Localizing-U.S./Canada-
7142957) - 2014 - CRC 1st Edition - 3/28/13
When the high beams are on, this
indicator light on the instrument
cluster will also be on.

Flash-to-Pass

This feature lets you use the
high-beam headlamps to signal a
driver in front of you that you want
to pass. It works even if the
headlamps are in the automatic
position.
To use it, pull the turn signal lever
toward you, then release it.
If the headlamps are in the
automatic position or on low beam,
your high-beam headlamps turn on.
They will stay on as long as you
hold the lever toward you. The
high-beam indicator on the
instrument panel cluster comes on.
Release the lever to return to
normal operation.

Daytime Running

Lamps (DRL)

DRL can make it easier for others to
see the front of the vehicle during
the day. Fully functional daytime
running lamps are required on all
vehicles first sold in Canada.
The DRL system comes on when
the following conditions are met:
The ignition is on.
The exterior lamp control is
in AUTO.
The transmission is not in
P (Park).
The light sensor determines it is
daytime.
When the DRL system is on, only
the DRL are on. The taillamps,
sidemarker lamps, instrument panel
lights, and other lamps will not
be on.
Black plate (3,1)
Lighting
When it begins to get dark, the
automatic headlamp system
switches from DRL to the
headlamps.
To turn off the DRL, turn the exterior
lamp control to the off position and
then release. For vehicles first sold
in Canada, off will only work when
the vehicle is in P (Park).

Automatic Headlamp

System

When it is dark enough outside, the
automatic headlamp system turns
on the headlamps at the normal
brightness, along with the taillamps,
sidemarker, parking lamps, and the
instrument panel lights. The radio
lights will also be dim.
To turn off the automatic headlamp
system, turn the exterior lamps
control to and then release it.
6-3