Oldsmobile ALERO 2001 Owner's Manual page 145

FRONT DEFROSTER: This position directs
most of the airflow through the window defroster vent.
Some of the air goes to the floor outlets. The air
conditioning compressor will run automatically in
this position when it is needed to help dry the air
in the vehicle.
Mode Buttons
: Press A/C to operate the air conditioner
compressor. The indicator light will glow when the
button is pressed to indicate that the air conditioning
system has been turned on. The fan knob must be
set to a speed for the air conditioning to operate.
OUTSIDE AIR: Press this button to force
the system to use outside air.
Pressing the OUTSIDE AIR button will cancel the
RECIRCULATION button.
RECIRCULATION: Press this button to limit
the amount of outside air entering your vehicle. This is
helpful when you are trying to limit odors entering your
vehicle. Press it again to turn off the recirculation.
Pressing the RECIRCULATION button will cancel the
OUTSIDE AIR button.
RECIRCULATION is not available when the DEFOG
or FRONT DEFROSTER mode is selected, or when the
fan is off. When RECIRCULATION is selected, the air
conditioning compressor will run automatically to help
dry the air in the vehicle.
Air Conditioning
The air conditioner and heater work best if you keep
your windows closed while using them. Your vehicle
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also has the flow through ventilation system described
later in this section.
For normal cooling on hot days, use UPPER with the
temperature knob in the blue area and the A/C indicator
light glowing.
On very hot days, open the windows long enough
to let hot inside air escape. This reduces the time it
takes for your vehicle to cool down, which should
help fuel economy.
On cool, but sunny days, the sun may warm your upper
body, but your lower body may not be warm enough.
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You can use BI LEVEL with the temperature knob
in the middle and the A/C indicator light glowing. The
system directs slightly warmer air to your lower body.
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