Flash-To-Pass; Daytime Running; Lamps (Drl); Automatic Headlamp - GMC 2016 Sierra Owner's Manual

When the high-beam headlamps 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,
the high-beam headlamps will turn
on. Depending on the type of
headlamp, they will either turn off
after a short duration or stay on as
long as you hold the lever toward
you. The high-beam indicator on the
instrument cluster will come 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 DRL 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.
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 the exterior lamp control is
set to AUTO and it is dark enough
outside, the headlamps come on
automatically.
177