Chevrolet 2011 Impala Owner's Manual page 346

10-90 Vehicle Care
Use the floor mat with the
correct side up. Do not turn
it over.
Do not place anything on top of
the driver side floor mat.
Use only a single floor mat on
the driver side.
Do not place one floor mat on
top of another.
Removing and Replacing the
Floor Mat
The driver side floor mat is held in
place by one hook-type retainer.
1. Pull up on the rear of the mat to
remove it from the hooks.
2. Reinstall the floor mat by lining
up the openings on the floor mat
over the hooks and push it down
into position.
3. Make sure the floor mat is
properly secured and verify that
it does not interfere with the
accelerator or brake pedals.