2004 Chevrolet Colorado Owner's Manual - Page 150

Outlet Adjustment The flow-through outlets on your vehicle allow outside air to enter your vehicle while it is moving. Outside air will also enter your vehicle while the air conditioning compressor is running. Use the thumbwheel on the outlets to change the direction of the air flow. Lift up or push down on the thumbwheel located in the center of the outlet to direct the air up or down, or slide the thumbwheel to the left or right to direct the airflow from side-to-side. Operation Tips • Clear away any ice, snow or leaves from the air inlets at the base of the windshield that may block the flow of air into your vehicle. • Use of non-GM approved hood deflectors may adversely affect the performance of the system. • Keep the path under the front seats clear of objects to help circulate the air inside of your vehicle more effectively. 3-22