GMC Buick Encore GX 2020 Owner's Manual page 270

Warning
Camera visibility may be limited
and the ACC system may not
work properly if the windshield is
not clear. Do not use ACC if
moisture is present on the inside
of the windshield or the
windshield washer is used in cold
weather. Turn on the front
defroster and make sure the
windshield is clear before using
ACC. Before driving, check that
the windshield wipers are in good
condition and replace them
if worn.
Lighting Conditions
Affecting ACC
The ACC front camera can be
affected by poor lighting conditions,
and ACC may have limited
performance when:
There are changes in brightness,
such as entering and exiting
tunnels, bridges, and
overpasses.
Low sun angles cause the
camera to not detect objects,
or it is more difficult to detect
objects in the same traffic lane.
Lighting is poor in the evening or
early morning
There are multiple changes in
brightness or shadows along the
vehicle roadway.
In a tunnel without the
headlamps on, or in a tunnel
when there is a vehicle in front
that does not have its
taillamps on.
Subjected to strong light from
opposing lane traffic in the front
of the vehicle, such as
high-beam headlamps from
oncoming traffic.
Accessory Installations and
Vehicle Modifications
Do not install or place any object
around the front camera windshield
area that would obstruct the front
camera view.
Driving and Operating
Do not install objects on top of the
vehicle that overhang and obstruct
the front camera, such as a canoe,
kayak, or other items that can be
transported on a roof rack system.
See Roof Rack System 0 96.
Do not modify the hood, headlamps,
or fog lamps, as this may limit the
camera s ability to detect an object.
Cleaning the Sensing System
The camera sensor on the
windshield behind the rearview
mirror can become blocked by
snow, ice, dirt, mud, or debris. This
area needs to be cleaned for ACC
to operate properly.
The vehicle headlamps may need to
be cleaned due to dirt, snow, or ice.
Objects that are not illuminated
correctly may be difficult to detect.
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