2002 GMC Savana Van Owner's Manual - Page 143

Fan Knob The knob on the left side of the control panel regulates the fan speed. The knob has four speed positions. To increase airflow, turn the knob toward HI. To decrease airflow, turn it toward LO. To turn the fan off, turn the mode knob on the far right to OFF. Temperature Knob The middle knob on the control panel lets you select the temperature of the air flowing into the passenger compartment of your vehicle. This knob will allow you to adjust the air temperature independently of the function knob setting. Turn the knob toward the red area for warmer air. Turn the knob toward the blue area for cooler air. Mode Knob The right knob on the control panel changes the heater/air conditioning setting. MAX A/C (Maximum Air Conditioning): Turn the right knob to MAX A/C for maximum cooling. This setting puts the system in the recirculation mode and helps to maximize your air conditioner's performance and your vehicle's fuel economy. This setting also cools the air the fastest. After the vehicle's interior reaches a comfortable temperature, turn the knob clockwise to place the air conditioning system in the A/C mode. A/C (Air Conditioning): This setting is used for normal cooling on hot days. It cools outside air and directs it through the instrument panel outlets. (Bi-Level Air Conditioning): This setting divides airflow between the floor vents and instrument panel vents. The air conditioning compressor will cycle continuously in this setting as long as the outside air temperature is warm enough to activate the compressor. (Vent): This setting directs air through the instrument panel vents. (Floor): This setting directs air through the floor vents. (Floor/Defrost): This setting divides airflow between the floor vents and the windshield. In the blended position, the air conditioning compressor is automatically activated to dehumidify the air. (Defrost): This setting directs air through the windshield defroster vents. It is useful when you have fog or ice on the windshield. 3-4