2008 Chevrolet Silverado 1500 Pickup Owner's Manual - Page 210
2008 Chevrolet Silverado 1500 Pickup Manual
Page 210 highlights
Manual Operation The air delivery mode or fan speed can be manually adjusted. These buttons let you manually adjust the fan speed. Press D to increase fan speed and C to decrease fan speed. Pressing either fan button while the system is off turns the system on. Pressing either fan button while in automatic control places the fan under manual control. The fan setting remains displayed and the AUTO light turns off. The air delivery mode remains under automatic control. H(Vent): Air is directed to the instrument panel outlets. DC (Fan): )(Bi-Level): Air is directed partly to the instrument panel outlets and to the floor outlets. A little air is directed towards the windshield and side window outlets. Cooler air is directed to the upper outlets and warmer air to the floor outlets. 6(Floor): Air is directed to the floor outlets, with some to the windshield, side window outlets, and second row floor outlets. In this mode, the system will automatically select outside air. See "Defogging and Defrosting" later in -(Defog): this section. HG (Mode): Press H and G to manually change the direction of the airflow in the vehicle. Repeatedly press either button until the desired mode appears on the display. Pressing either mode button while the system is off changes the air delivery mode without turning the system on. Pressing either mode button while in automatic control places the mode under manual control. The air delivery mode setting is displayed and the AUTO light turns off. The fan remains under automatic control. @(Recirculation): Press this button to turn the recirculation mode on. When the button is pressed, an indicator light comes on. This mode keeps outside air from entering the vehicle. It can be used to reduce outside air and prevent odors from entering the vehicle. Recirculation may also help cool the air inside the vehicle more quickly once the temperature inside the vehicle is less than the outside temperature. 3-32