Chevrolet 2011 Impala Owner's Manual page 208

8-6 Climate Controls
To change the passenger
compartment air filter:
1. Turn off the ignition when the
windshield wipers are in the up
position.
2. Raise the vehicle hood.
3. Pull back the hood weatherstrip
from the passenger side of the
vehicle halfway to center.
4. Remove the air inlet grille
retainers.
5. Lift the air inlet grille and
disconnect the washer hose
at the quick-connect.
6. Remove the air inlet grille.
7. Remove the water deflector
plate.
8. Remove the old passenger
compartment air filter.
9. Reverse the steps to install the
new air filter.
For best climate control system
performance, reinstall the air filter.
For the type of filter to use, see
Maintenance Replacement Parts on
page 11 8.