2003 Hummer H2 Owner's Manual - Page 201

Ventilation System For mild outside temperatures when little heating or cooling is needed, use the panel outlet setting to direct outside air through your vehicle. Air will flow through the instrument panel outlets. Your vehicle's flow-through ventilation system supplies outside air into the vehicle when it's moving. When the vehicle is not moving, you can get outside air to flow through by selecting any air delivery mode and any fan speed. Your vehicle has air outlets that allow you to adjust the direction and amount of airflow inside the vehicle. Push the knob up, down, left or right to direct the airflow. Increase or decrease the amount of air flow by turning the knob, located in the center of the vents. The rear seat outlets work the same as the front outlets. Ventilation Tips D Keep the hood and front air inlet free of ice, snow or any other obstruction such as leaves. The heater and defroster will work better, reducing the chance of fogging your windows. recirculation to reduce the chance of fogging your windows. objects. This helps air to circulate throughout your vehicle. D In cool damp weather, minimize your use of D Keep the air path under the front seats clear of D Adding outside equipment to the front of your vehicle, such as hood air deflectors, etc., may affect the performance of the heating and air conditioning system. Check with your dealer before adding equipment to the outside of the vehicle. 3-9