Outlet Adjustment; Passenger Compartment Air Filter - Buick Lucerne 2011 Owner's Manual

Outlet Adjustment

Use the levers, located in the middle of the front
outlets, to change the direction of the airflow. Use the
thumbwheel located between the outlets to turn them on
and off.
If the vehicle has rear seat outlets, adjust the direction
of the airflow using the lever in the center of each outlet.
Operation Tips
Clear away any ice, snow, or leaves from the air
inlets at the base of the windshield that could block
the flow of air into the vehicle.
Use of non-GM approved hood deflectors can
adversely affect the performance of the system.
Keep the path under the front seats clear of
objects to help circulate the air inside the vehicle
better.

Passenger Compartment Air Filter

Outside air is routed through a passenger compartment
air filter before entering the vehicle. This filter removes
certain particles from the air, including pollen and dust
particles. The filter should be replaced as part of routine
scheduled maintenance. See Scheduled Maintenance
on page 7 3 for when to replace the filter.
The access panel for the passenger compartment air
filter is located under the hood near the windshield, on
the passenger's side of the vehicle.
To access the passenger compartment air filter, do the
following:
1. Press the tabs back and left to remove the cover.
2. Insert a tool behind the push pin located on the
inboard side of the air filter compartment to
carefully pry the pin out.
4-25