Chevrolet Silverado 4500HD 2022 Owner's Manual page 185

: Air is directed to the instrument panel
outlets.
: Air is divided between the instrument
panel and floor outlets.
: Air is directed to the floor outlets,
with some air directed to the windshield
and side window outlets.
-
: This mode clears the windows of fog or
moisture. Air is directed to the windshield,
floor outlets, and side window vents.
0
: Press to clear the windshield of fog or
frost more quickly. Air is directed to the
windshield and the side window vents. The
system automatically forces outside air into
the vehicle and the air conditioning
compressor will run, unless the outside
temperature is close to freezing.
Do not drive the vehicle until all the
windows are clear.
See Air Vents 0 183.
@
: Press to turn on recirculation. An
indicator light comes on. Air is recirculated
to quickly cool the inside of the vehicle.
It can also be used to help reduce outside
air and odors that enter the vehicle.
: If equipped, press to turn the outside
air mode on. An indicator light on the
button comes on to show that outside air is
on. When selected, air from outside the
vehicle circulates throughout the vehicle. The
recirculation mode cannot be used with the
outside air mode.
A/C : Press to turn the air conditioning
system on or off. An indicator light comes
on to show that the air conditioning is
enabled. If the fan is turned off, the air
conditioner will not run. The A/C light will
stay on even if the outside temperatures are
below freezing.
Rear Window Defogger
: If equipped, press to turn the rear
window defogger on or off. An indicator
light on the button comes on to show that
the rear window defogger is on.
The rear window defogger only works when
the ignition is on. The defogger turns off if
the ignition is turned to ACC/ACCESSORY
or off.
: If equipped with heated outside
mirrors, they turn on when the rear window
defogger button is on. They help to clear
fog or frost from the surface of the mirrors.
Climate Controls
Caution
Using a razor blade or sharp object to
clear the inside rear window can damage
the rear window defogger. Repairs would
not be covered by the vehicle warranty.
Do not clear the inside rear window with
sharp objects.
Air Vents
1. Slider Knob
2. Thumbwheel
Move the slider knobs (1) to change the
direction of the airflow.
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