GMC 2018 Acadia Denali Owner's Manual page 157

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156
Lighting
: Turns on the headlamps
together with the parking lamps and
instrument panel lights.
®
IntelliBeam
System
If equipped, this system turns the
vehicle's high-beam headlamps on
and off according to surrounding
traffic conditions.
The system turns the high-beam
headlamps on when it is dark
enough and there is no other traffic
present.
This light
comes on in the
instrument cluster when the
IntelliBeam system is enabled.
Turning On and Enabling
IntelliBeam
To enable the IntelliBeam system,
press the button on the end of the
turn signal lever when the exterior
lamp control is in the AUTO or
position. The blue high-beam on
light appears on the instrument
cluster when the high beams are on.
Driving with IntelliBeam
The system only activates the high
beams when driving over 40 km/h
(25 mph).
There is a sensor near the top
center of the windshield that
automatically controls the system.
Keep this area of the windshield
clear of debris to allow for best
system performance.
The high-beam headlamps remain
on, under the automatic control,
until one of the following situations
occurs:
The system detects an
approaching vehicle's
headlamps.
The system detects a preceding
vehicle's taillamps.
The outside light is bright
enough that high-beam
headlamps are not required.
The vehicle's speed drops below
20 km/h (12 mph).
The IntelliBeam system is
disabled by the button on the
turn signal lever. If this happens,
press the button on the end of
the turn signal lever when the
exterior lamp control is in the
AUTO or
position. The
instrument cluster light will come
on to indicate the IntelliBeam is
reactivated.
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.

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