Buick 2004 Century Owner's Manual page 121

BLEND: This mode directs half of the air to go to the
floor outlets and half to the defroster and side window
outlets. The air-conditioning compressor will run
automatically in this setting unless the outside
temperature is below 40°F (4°C).
The right knob can also be used for the defrost mode.
Information on defrosting and defogging can be
found later in this section.
9
FAN: The left knob controls the fan speed.
OFF: Turn the knob all the way counterclockwise to
turn off the fan.
LO (Low Fan Speed): This setting creates the lowest
fan speed.
HI (High Fan Speed): This setting creates the highest
fan speed.
DRIVER (Driver's Side Temperature): The lever on
the left adjusts the air temperature for the driver's
side outlets. Slide the lever up to raise the temperature
and down to lower the temperature.
PASSENGER (Passenger's Side Temperature): The
lever on the right adjusts the air temperature for the
passenger's side outlets. Slide the lever up to raise the
temperature and down to lower the temperature.
"
(Air Conditioning): Press this button to turn the
air-conditioning on and off. An indicator light above the
button will come on when the air conditioning is on.
During daylight hours the interior lighting control might
need adjustment to the highest setting in order for
the indicator light to be seen. The system will cool and
dehumidify the air inside the vehicle when the A/C
indicator light is on.
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 a very hot day, use MAX with
the temperature levers all the way in the blue area. If
this setting is used for long periods of time, the air in the
vehicle may become too dry.
For normal cooling on hot days, use VENT with the
temperature levers 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.
Select BI-LEV and set the temperature levers 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. Push the A/C button for
cooling.
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