2007 Chevrolet Uplander Owner's Manual - Page 220

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. Temperature Control: Use the driver's and passenger's levers to increase or decrease the air temperature inside your vehicle. Turn the right knob clockwise or counterclockwise to direct the airflow inside of your vehicle. To change the current mode, select one of the following: @ MAX A/C (Maximum Air Conditioning): Turn the right knob to this position for maximum air conditioning. This will select air conditioning and recirculation for maximum cooling of your vehicle. Recirculation: This mode keeps outside air from coming in the vehicle. It can be used to prevent outside air and odors from entering your vehicle or help heat or cool the air inside your vehicle more quickly. This mode will automatically be selected when maximum air conditioning is selected. Operation 9 (Fan): Turn the left knob clockwise or counterclockwise to increase or decrease the fan speed. Turn the knob to 0 to turn off the fan. The fan must be turned on for the air conditioning compressor to operate. 220 H (Vent): This mode directs air to the instrument panel outlets.