Outlet Adjustment - Chevrolet 2003 Impala Owner's Manual

Outlet Adjustment 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 your vehicle more
effectively.
If the airflow seems low when the fan is at the
highest setting, the passenger compartment
air filter, if equipped, may need to replaced. For
more information, see Passenger Compartment Air
Filter on page 3-26 and Part A: Scheduled
Maintenance Services on page 6-4.
3-25