Oldsmobile ALERO 2001 Owner's Manual page 148

You will find air outlets in the center and on the sides of
your instrument panel.
You can direct the airflow side to side by moving the
sliding levers. The outlet can be tilted up and down also.
To control the amount of airflow through the outlets,
turn the thumbwheel.
3-6
Ventilation Tips
D
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.
D
When you enter a vehicle in cold weather, adjust the
mode knob to FLOOR and the fan to the highest
speed 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.
D
Keep the air path under the front seats clear of objects.
This helps air circulate throughout your vehicle.
D
To prevent circulation of outside air, press the
recirculation button. This will close all outside vents.