Buick riviera 1999 User Manual

Adjust the direction of airflow by moving the louvered
air outlets.

You can also adjust the direction of the airflow to the
rear seating area.

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.

D Keep the air path under the front seats clear of

objects. This helps air to circulate throughout 
your vehicle.