Driver Assistance Systems - GMC CHEVROLET Silverado 1500 2021 Owner's Manual

264 Driving and Operating
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.
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 the
vehicle roof.
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.
If ACC will not operate, regular cruise control
may be available. See Switching Between
ACC and Regular Cruise Control previously
in this section. Always consider driving
conditions before using either cruise control
system.
For cleaning instructions, see Washing the
Vehicle under Exterior Care 0 398.

Driver Assistance Systems

This vehicle may have features that work
together to help avoid crashes or reduce
crash damage while driving, backing, and
parking. Read this entire section before
using these systems.
Warning
Do not rely on the Driver Assistance
Systems. These systems do not replace
the need for paying attention and driving
safely. You may not hear or feel alerts or
warnings provided by these systems.
Failure to use proper care when driving
may result in injury, death, or vehicle
damage. See Defensive Driving 0 213.
Under many conditions, these systems
will not:
Detect children, pedestrians, bicyclists,
or animals.
Detect vehicles or objects outside the
area monitored by the system.
Work at all driving speeds.
Warn you or provide you with enough
time to avoid a crash.
(Continued)