Comfort Controls; Flow-Through Ventilation System - GMC 1994 Yukon Owner's Manual

Comfort Controls
Flow-Through Ventilation System
Your vehicle's flow-through ventilation system supplies
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inside of your vehicle when it is moving.
ltside air to the
With the side
windows closed, air
will flow into the front
air inlet grilles,
through the vehicle
and out the rear air
exhaust valves.
Outside air will also enter the vehicle when the heater or the air
conditioning fan is running, unless your optional air conditioner is in the
MAX mode. For more information see "MAX Button" in this section.
Ventilation Tips
0
Keep the hood and front air inlet free of ice, snow, or any other
obstruction (such as leaves). The heater and defroster will work far
better, reducing the chance of fogging the inside of your windows.
0
When you enter a vehicle in cold weather, turn the blower fan to HI
for a few moments before driving off. This helps clear the intake ducts
of snow and moisture, and reduces the chance of fogging the inside of
your windows.
circulate throughout your vehicle.
0
Keep the air path under the front seats clear of objects. This helps air to
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