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GMC 2001 C3 - Ventilation System

GMC 2001 C3
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3-6
The rear window defogger button will also activate the
heated outside mirrors.
Do not attach a temporary vehicle license, tape or decals
across the defogger grid on the rear window.
NOTICE:
Don’t use a razor blade or something else sharp
on the inside of the rear window. If you do, you
could cut or damage the warming grid, and the
repairs wouldn’t be covered by your warranty.
Ventilation System
For mild outside temperatures when little heating or
cooling is needed, use the outside air setting to direct
outside air through your vehicle. Air will flow in
through the instrument panel outlets.
Your vehicle’s ventilation system supplies outside air
to the inside of your vehicle when it is moving. With
the side windows closed, air will flow into the front air
inlet grilles, through the vehicle, and out of the air
exhaust valves.
Outside air will also enter the vehicle when the heater or
the air conditioning fan is running, unless you have the
recirculation button pushed in. For more information on
the recirculation button, see “Air Conditioning” earlier
in this section.
Your vehicle has air
outlets in the center and
on the sides of your
instrument panel.
You can move the outlets from side
-to-side or up and
down to direct the flow of air. The left and right outlets
on vehicles equipped with air conditioning have shut off
knobs. Turn the knob to the left to shut off air flow or to
the right to allow air flow. When you close an outlet, it
will increase the flow of air coming out of any outlets
that are open. The center outlet does not completely shut
off airflow.

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