Buick REGAL 1997 Manual page 158

Comfort Controls
Manual Single Zone Climate Control
COMFORT CONTROL
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With this system, you can control the heating, cooling
and ventilation in your vehicle, The system works best if
you keep your windows closed while using it.
Fan Knob
The left knob selects the amount of air you want. To turn
the fan off, turn the knob to OFF.
If the
airflow seems very low when the fan knob is turned
to the highest setting, regardless of the mode setting, your
passenger compartment air filter may need to be replaced.
See "Maintenance Schedule" in the Index.
Temperature Knob
The center knob changes the temperature of the air
coming through the system. Turn this knob toward red
(clockwise) for warmer air. Turn it toward blue
(counterclockwise) for cooler air.
Mode Knob
The right knob has several settings to control the
direction of airflow:
MAX: This setting recirculates much of the air inside
your vehicle and sends it through the instrument panel
outlets. The air conditioning compressor will run
automatically in this setting unless the outside
temperature is below 40°F (4°C). (Even when the
compressor is running, you can control the temperature.)
NORM: This setting brings in outside air and sends
it through the instrument panel outlets. The air
conditioning compressor will run automatically in
this setting unless the outside temperature is below
40°F (4°C). (Even when the compressor is running,
you can control the temperature.)
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