2010 GMC Savana 2500 Cargo Owner's Manual - Page 162

Air Delivery Mode Control: Turn the knob clockwise or counterclockwise to change the current airflow mode. H (Vent): Air is directed to the instrument panel outlets. ) (Bi-Level): Air is divided between the instrument panel and floor outlets, with some air directed toward the windshield. 6 (Floor): Air is directed to the floor outlets with some air directed to the windshield and side windows. A. B. C. D. Vehicles With Air Conditioning Fan Control Temperature Control Air Delivery Mode Control Rear Window Defogger - (Defog): This mode clears the windows of fog or moisture. Outside air is directed to the floor and defroster outlets. Adjust the temperature knob for warmer or cooler air. The air conditioning compressor might turn on in this setting to dehumidify the air. 1 (Defrost): This mode clears the windshield of fog or frost more quickly. Air is directed to the windshield, with some to the floor outlets and front side windows. The air conditioning compressor might turn on in this setting to dehumidify the air. Do not drive the vehicle until all the windows are clear. On hot days, open the windows to let hot inside air escape; then close them. This helps to reduce the time needed for the vehicle to cool down and the system operates more efficiently. # (Air Conditioning): Cools and dehumidifies the air inside of the vehicle. V (Maximum Air Conditioning): Cools the air inside the vehicle faster, by recirculating the inside air. 4-16