GMC 1997 Suburban - Heating; Ventilation System

Ventilation System
For mild outside temperatures when little heating or
cooling is needBd, use VENT to -direct outside air
through your vehicle. Air will flow though 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 hat
air inlet grilles, though the vehicle, and out the air
exhaust valves.
Outside air will also enter the vehicle when the heater qr
the air conditioning fan is running, unless you have the
recirculation button pushed in. For more infomation on
the recirculation button, see “Air C~onditiQning” earlier
in
this section.