Buick Buick Century Automobile User Manual


 
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.)
Air Conditioning
On very hot days, open the windows long enough to
let
hot, inside air escape. This reduces the time for the
vehicle to cool down.
For a quick cool-down on very hot days, use MAX with
the temperature knobs all the way in the blue area. If
this setting is used for long periods of time, the air
in
your vehicle may become too dry.
For normal cooling on
hot
days, use NORM with the
temperature knobs in the blue area. The system will
bring in outside air and cool it.
On cool, but sunny days, the
sun
may warm your upper
body, but your lower body may not be warm enough.
You can
use
BI-LEV
and set the temperature knob
to
a
comfortable setting. The system will bring in outside air
and direct it to your upper body, while sending slightly
warmed air to your lower body.
You
may notice this
temperature difference more at some times than others.
Heating
On
cold days, use HTR with the temperature knobs all
the way
in
the red area. The system will bring in outside
air, heat it and send
it
to
the
floor ducts.
If your vehicle has an engine coolant heater, you can
use
it to help your system provide warm air faster when it’s
cold outside (0°F
(-
1
SOC) or lower). An engine coolant
heater warms the coolant your engine and heating
system use to provide heat. See “Engine Coolant
Heater” in
the
Index.
Ventilation
For mild outside temperatures when little heating or
cooling is needed, use
VENT
to direct outside air through
your vehicle. Your vehicle also has the flow-through
ventilation system described later in this section.
Defogging and Defrosting
Your system has two settings for clearing
the
front
and side windows. To defrost
the
windows quickly,
use
FRONT.
For maximum defroster performance, set both driver and
passenger temperature controls to the warmest setting.
To
warm passengers while keeping the windows clear,
use
BLEND.