2010 Hummer H3 Owner's Manual - Page 182

8-2 Climate Controls [ (Floor): Air is directed to the floor outlets, side window outlets, and defroster. Recirculation is not available in this mode. / (Floor/Defog): This clears the windows of fog and moisture. Air is directed to the windshield, side window, and floor outlets. The system runs the air conditioning unless the outside temperature is near freezing or below. Recirculation is not available in this mode. 0 (Defrost): This clears the windshield of fog or frost more quickly. Air is directed to the windshield and side window outlets. The system runs the air conditioning system unless the outside temperature is near or below freezing. Recirculation is not available in this mode. Do not drive the vehicle until all the windows are clear. # (Air Conditioning): Press to turn the air conditioning system on or off. An indicator light comes on when the air conditioning is turned on. This system cools and dehumidifies the air entering the vehicle. The air conditioning will not function if the fan is turned off. If air conditioning is selected with fan off, the indicator light flashes three times and then turns off. A slight change in engine performance may occur when the air conditioning compressor shuts off and turns on again. This is normal. The system is designed to make adjustments to help with fuel economy while still maintaining the selected temperature. The air conditioning system removes moisture from the air, so water might drip under the vehicle while idling or after turning off the engine. This is normal. 9 (Fan Control): Turn clockwise or counterclockwise to increase or decrease the fan speed. Air Delivery Mode Control: Turn clockwise or counterclockwise to change the direction of the airflow in the vehicle. The airflow can be set between modes. To change the current mode, select one of the following: H (Vent): Air is directed to the instrument panel outlets. \(Bi-Level): Air is directed to the instrument panel outlets, and the remaining air to the floor outlets and the defroster and side window outlets. Cooler air is directed to the upper outlets and warmer air to the floor outlets.