2004 Buick Rendezvous Owner's Manual - Page 172

Dual Climate Control System Your vehicle may have a dual climate control system. With this system you can control the heating, cooling, and ventilation for your vehicle. ) (Bi-Level): This mode directs half of the air to the instrument panel outlets, then directs the remaining air to the floor outlets. Cooler air is directed to the upper outlets and warmer air to the floor outlets. This mode directs most of the air to the floor outlets. Use this mode 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. The right knob can also be used to select defog or defrost mode. For more information, see "Defogging and Defrosting" later in this section. 6 (Floor): 9 (Fan): Operation Turn the right knob clockwise or counterclockwise to direct the airflow inside your vehicle. To change the current mode, select one of the following: Turn the left knob clockwise or counterclockwise to increase or decrease the fan speed. Turn the knob counterclockwise until it stops to turn off the fan. The fan must be turned on for the air conditioning compressor to operate. Press this button to turn the outside air mode on or off. When this mode is on, outside air will circulate throughout your vehicle. When this mode is on, an indicator light in the button will come on to let you know that it is activated. The outside air mode can be used with all modes, but it cannot be used with the recirculation mode. : (Outside Air): H (Vent): This mode directs air to the instrument panel outlets. 3-32