Oldsmobile 2001 Silhouette Owner's Manual page 207

Driver's Side Temperature Lever
The lever on the left adjusts the air temperature on the
driver's side independent of the temperature set by the
passenger. Slide the D lever upward to raise the
temperature. Slide the D lever downward to lower the
temperature.
Passenger's Side Temperature Lever
The lever on the right adjusts the air temperature on
the passenger's side independent of the temperature
set by the driver. Slide the P lever upward to raise
the temperature. Slide the P lever downward to lower
the temperature.
Mode Knob
The right knob is used to select the direction of the air
flowing into the vehicle.
(Vent): This setting directs air through the
instrument panel outlets and the rear console outlets.
3-4
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(Bi Level): This setting directs air into your
vehicle in two ways. Cooler air is directed toward your
upper body through the instrument panel outlets and the
rear console outlets, while warmer air is directed
through the floor ducts.
(Floor): This setting brings in most of the air
through the floor ducts. This setting is also used to send
air to the rear of the vehicle. Keep the area under the
front seats free of objects that could obstruct airflow to
the rear of the vehicle.
(Defog): This setting directs air to the windshield
and through the floor ducts. This mode is particularly
useful during cold or inclement weather because of your
vehicle's larger windshield area.
(Defrost): This setting directs most of the air to the
windshield and side window vents.