GM Service Manual Online
For 1990-2009 cars only

The vehicle has adjustable air outlets that can control the amount and direction of the airflow inside the vehicle. Use the thumbwheels located beside the air outlets to direct the airflow up and down. Use the thumbwheels below the air outlets to direct the air left or right.

Operation Tips

    • Keep the hood and front air inlets free of ice, snow, or any other obstruction, such as leaves. The heater and defroster will work better, reducing the chance of fogging the inside of the windows.
    • Keep the air path under the front seats clear of objects. This helps air to circulate throughout the vehicle.
    • Adding outside equipment to the front of the vehicle, such as hood-air deflectors, etc., may affect the performance of the heating and air conditioning system. Check with your dealer/retailer before adding equipment to the outside of the vehicle.