Buick Enclave Owner's Manual page 341

Floor mats with a button-type
retainer.
1. Pull up on the rear of the mat to
unlock and remove.
2. Reinstall the floor mat by lining
up the floor mat openings over
the carpet retainers and
snapping into position.
3. Make sure the floor mat is
properly secured and verify that
it does not interfere with the
pedals.
Floor mats with a knob retainer.
1. Turn the knob until it is aligned
with the slot in the floor mat
grommet.
2. Pull up on the floor mat.
3. Center the slot in the floor mat
grommet with the knob on the
floor and set into position.
4. Turn the knob until it is
perpendicular to the slot in the
grommet to lock the mat in
place.
5. Make sure the floor mat is
properly secured and verify that
it does not interfere with the
pedals.