Pontiac 2002 Automobile User Manual


 
3-7
Be sure not to cover the sensor located on the top of the
instrument panel near the windshield. This sensor
regulates interior temperatures based on sun load.
To avoid blowing cold air through the system in cold
weather, the automatic system will delay turning on the
fan until warm air is available. The length of delay
depends on engine coolant temperature. Pressing the fan
button will override this delay and cancel the automatic
mode, returning the system to manual mode.
The EXT (exterior) temperature sensor is located in the
front of the vehicle behind the grill. The EXT temperature
displayed may not be accurate for a few minutes if you
have restarted the engine after it was already warmed.
Air Conditioning
On hot days, open the windows long enough to let hot
air inside the vehicle escape. This reduces the time it
takes for your vehicle to cool down. Then keep your
windows closed for the air conditioner to work its best.
If you have the standard system, for quick cool
-down on
very hot days, use the airflow from the instrument panel
outlets, press RECIRC and A/C with the temperature knob in
the blue area. If this maximum A/C setting is used for long
periods of time, the air in your vehicle may become too cold
and dry. For normal cooling on hot days, use A/C without
recirculation with the temperature knob in the blue area.
If you have the electronic system, in AUTO mode
the system will cool and dehumidify the air inside
the vehicle. Also while in AUTO mode, the system
will maximize its performance by using recirculation
as necessary.
On cool, but sunny days, with the standard system or
through manual operation of the electronic system, use
bi-level to deliver warm air to the floor and cooler air to
the instrument panel outlets. To warm or cool the air
delivered, turn the temperature knobs.
Heating
If you have the standard system, on cold days use the
floor ducts with the temperature knob in the red area. If
you have the electronic system, press AUTO and adjust
the temperature by turning the temperature knob up or
down. You may also adjust the electronic system
manually by pressing the MODE button and selecting
FLOOR. Again, adjust the temperature by turning the
temperature knobs.
With either system, outside air will be heated and sent
through the floor ducts. The heater works best if you
keep your windows closed while using it.