Buick 2001 Century Owner's Manual page 151

Setting the temperature to 90 _ F (32 _ C) will lock control
in full hot, direct air to the floor, and increase the fan speed
to high. The system will not return to automatic temperature
control until the temperature setting is lowered.
Setting the temperature to 60 _ F (15 _ C) will lock control
in full cold, recirculate interior air, direct air to outlets on
panel and increase blower speed to high. The system will
not return to automatic temperature control until the
temperature setting is raised.
Passenger's Temperature Control
The PASSENGER CONTROL buttons with the arrows
adjust the temperature on the passenger's side so it is
warmer or cooler than the temperature for the driver's
side. Push the DUAL button so that the indicator light is
lit. Press the right arrow button to raise the temperature.
Press the left arrow button to lower the temperature.
The display will not show the passenger's temperature,
only that of the driver. Indicators in the passenger control
section will show passenger's side temperature relative to
the driver's set temperature.
D
The amber light indicates the same temperature as
set for the driver.
D
The red lights indicate a warmer temperature than
that of the driver.
D
The blue lights indicate a cooler temperature than
that of the driver.
Hot Weather Example: When you start the vehicle
_ _
in hot weather, 80 F (27
during the day in full sun, if your driver set temperature
_ _
is 75 F (23 C) and you are in full automatic mode,
the system will automatically move the temperature to
full cold. The fan will be at low speed momentarily
and then go to the high speed. The air intake will be
recirculated for maximum cooling performance.
As the interior of the vehicle cools down to your
desired comfort point, the fan speed will decrease and
the temperature will move to a warmer position to
maintain your desired comfort. As the interior cools
down or the sun load decreases the system could switch
to air delivered to A/C vents and the floor.
Cold Weather Example: When you start the vehicle
in cold weather, (below freezing) or after being parked
overnight. If your Driver Set Temperature is 75
and you are in Full Automatic mode, the system will
automatically move the temperature doors to full hot.
The fan will start out at a low speed and will increase to
a higher speed 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 fan speed
will decrease and the temperature 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).
C) or after being parked
_
F (23
_
C)
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