2001 Chevrolet Express Van Owner's Manual - Page 146

Comfort Controls This section tells you how to make your air system work for you. With these systems, you can control the heating, cooling and ventilation in your vehicle. 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 regulates the temperature of the air flowing into your vehicle. 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 changes the heater setting. VENT: This setting directs air through the instrument panel vents. BI-LEVEL: This setting divides airflow between the heater floor vents and instrument panel vents. HEAT: This setting directs air through the heater floor vents. Heater Controls If your vehicle does not have air conditioning, your heater controls will look like this. Fan Knob The knob on the left side of the heating system control panel regulates the fan speed. The knob has four speed positions. To increase airflow, turn the knob toward HI. HEAT/DEFOG: This setting divides airflow between the heater floor vents and windshield. DEFROST: This setting directs air through the windshield defroster vents. This setting is used to remove fog or ice from the windshield. 3-2