GMC Chevrolet Silverado 2500HD 2021 Owner's Manual page 382

Care of Seat Belts
Keep belts clean and dry.
Warning
Do not bleach or dye seat belt webbing.
It may severely weaken the webbing. In
a crash, they might not be able to
provide adequate protection. Clean and
rinse seat belt webbing only with mild
soap and lukewarm water. Allow the
webbing to dry.
Floor Mats
Warning
If a floor mat, a liner, or a liner insert is
the wrong size or is not properly
installed, it can interfere with the pedals.
Interference with the pedals can cause
unintended acceleration and/or increased
stopping distance, which can cause a
crash and injury. Make sure the floor
mat, liner, or liner insert does not
interfere with the pedals.
Use the following guidelines for proper floor
mat/liner usage:
The original equipment floor mats/liners
were designed for your vehicle. If the
floor mats/liners need replacing, it is
recommended that GM certified floor
mats/liners be purchased. Non-GM floor
mats/liners may not fit properly and may
interfere with the pedals. Always check
that the floor mat, liner, or liner insert
does not interfere with the pedals.
Do not use a floor mat/liner if the vehicle
is not equipped with a floor mat retainer
on the driver side floor.
Use the floor mat/liner insert with the
correct side up. Do not turn it over.
Do not place anything on top of the
driver side floor mat/liner.
Use only a single floor mat/liner on the
driver side.
Do not place one floor mat/liner on top
of another.
Vehicle Care
Removing and Replacing the Floor Mats/
Liners
Pull up on the rear of the driver side floor
mat/liner to unlock each retainer and
remove.
Reinstall by lining up the floor mat/liner
retainer openings over the carpet retainers
and snapping into position.
Make sure the floor mat/liner is properly
secured in place.
Verify the floor mat/liner does not interfere
with the pedals.
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