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Pontiac 1997 Grand Prix Owner's Manual page 165

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Automatic Control
Dual Zone Button Light
For the most efficient operation, you should set the
system temperature and press AUTO. The system will
select the best fan speed and airflow settings to keep you
comfortable. The air conditioning compressor will run if
the outside temperature is above 38
O F
(3.3
O
C). You may
notice a delay of three to four minutes before the fan
comes on.
Driver's Temperature Knob
The left knob sets the temperature for the entire system
when the light on DUAL button isn't lit. If the light is
lit, the knob sets the temperature for the driver. Turn the
knob toward red (clockwise) to raise the desired cabin
temperature. Turn
it
toward
blue
(counterclockwise)
to
lower the temperature. The display will show your
selection for a few seconds, then the outside temperature
will show or be displayed.
Passenger's Temperature Knob
The right knob sets the desired cabin temperature for the
passenger and will automatically force the system into a
dual zone operation, lighting the dual zone button light.
Turn
the
right knob
toward red (clockwise)
to raise
the
temperature. Turn it toward blue (counterclockwise) to
lower the temperature.
The dual zone button light indicates whether the system
is in single zone or dual zone operation. When there is
no desire for dual zone operation, push the lit dual zone
button to return to single zone operation. The dual zone
button light will go off.
The system will operate to achieve your comfort set
point as quick as possible. If you set the temperature for
60°F (16°C) or 90°F (32"C), the fan will go to it's
highest speed, unless you manually select a lower speed.
The system will maintain full cold or full hot operation
at these settings.
Cold Weather Example: (When you start the vehicle in
cold
weather, below freezing
or after
being
parked
overnight). If your Driver Set Temperature is 73°F
(23 "C)
and you are in Full Automatic mode, the system
will automatically move the temperature doors to full
hot. The blower will start out at a low speed and the
blower speed will increase
as the
engine warms up. The
air will be delivered to the floor. As the interior of the
vehicle warms up to your desired comfort point, the
blower will decrease and the temperature door will
move to a cooler position to maintain your desired
comfort. As the cabin warms up or the sun load
increases, the system could switch to air delivered
to the windshield and the floor. (Defog mode)
3-5

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This manual is also suitable for:

Grandprix 1997