2001 Pontiac Aztek Owner's Manual - Page 211

Ventilation System Your vehicle's flow-through ventilation system supplies outside air into the vehicle when it is moving. Outside air will also enter the vehicle when the fan is running. Your vehicle has air outlets that allow you to adjust the direction and amount of airflow inside the vehicle. Push the outlet up or down to direct the airflow to your preference. Increase or reduce the amount of air flow by turning the knob, located on the front of the vents, clockwise to close or counterclockwise to open the louvers. Opening and closing the louvers will also direct airflow from side to side. Ventilation Tips D Keep the hood and front air inlet free of ice, snow or any other obstruction (such as leaves). This will allow the heater and defroster to work much better, reducing the chance of fogging the inside of your windows. fan knob to "5", the highest setting, for a few moments before driving off. This helps clear the intake ducts of snow and moisture, and reduces the chance of fogging the inside of your windows. D When you enter a vehicle in cold weather, turn the D Keep the area around the base of the center instrument panel console and the air path under the front seats clear of objects. This helps air to circulate throughout your vehicle. 3-11