Exterior Lamps Off; Reminder; Headlamp High/Low-Beam; Changer - GMC YUKON 2018 Owner's Manual

172 Lighting
The IntelliBeam system can be
disabled by the High/Low-Beam
Changer or the Flash-to-Pass
feature. If this happens, the
High/Low-Beam Changer must
be activated on then off within
two seconds to reactivate the
IntelliBeam system. The
instrument cluster light will come
on to indicate the IntelliBeam is
reactivated.
See Headlamp High/Low-Beam
Changer 0 172 and

Flash-to-Pass 0 172.

The high beams may not turn off
automatically if the system cannot
detect another vehicle's lamps
because of any of the following:
The other vehicle's lamps are
missing, damaged, obstructed
from view, or otherwise
undetected.
The other vehicle's lamps are
covered with dirt, snow, and/or
road spray.
The other vehicle's lamps cannot
be detected due to dense
exhaust, smoke, fog, snow, road
spray, mist, or other airborne
obstructions.
The vehicle's windshield is dirty,
cracked, or obstructed by
something that blocks the view
of the light sensor.
The vehicle is loaded such that
the front end points upward,
causing the light sensor to aim
high and not detect headlamps
and taillamps.
The vehicle is being driven on
winding or hilly roads.
The automatic high-beam
headlamps may need to be disabled
if any of the above conditions exist.

Exterior Lamps Off

Reminder

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 lamps off.
Headlamp High/
Low-Beam Changer
Push the turn signal lever toward
the instrument panel to change the
headlamps from low to high beam.
Pull the turn signal lever toward you
and release it to return to low-beam
headlamps.
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.