2008 Chevrolet Express Van Owner's Manual - Page 140

A rear seat passenger can use this control panel to personally adjust the temperature, the direction of the airflow and the fan speed for the rear seating area. The fan knob located on the front climate control panel must be turned to AUX (Auxiliary) to let a rear seat passenger use the control panel in the rear seating area. Performing this action disables the front control panel. To return control to this panel, move the fan knob out of AUX. To change the current mode, select one of the following: H (Vent): This mode directs air to the upper outlets, with a little air directed to the floor outlets. 2 (Floor): This mode directs most of the air to the floor outlets. Temperature Control: Turn the right knob clockwise or counterclockwise to increase or decrease the temperature in the rear-seating area. The air-conditioning system on the main climate control panel must be turned on to direct cooled air to the rear of the vehicle. If it is not on, then the temperature in the rear of the vehicle remains at cabin temperature. Be sure to keep the area under the front seats clear of any objects so that the air inside of your vehicle can circulate effectively. For information on how to use the main climate control system, see Climate Control System on page 3-19. For information on ventilation, see Outlet Adjustment on page 3-22. 9 (Fan): Turn the left knob clockwise or counterclockwise to increase or decrease the fan speed in the rear-seating area. This position turns the system off. 9: Mode Control: Turn the center knob clockwise or counterclockwise to change the direction of the airflow in the rear seating area. 3-24