Cadillac SRX Owner's Manual page 350

If a floor mat 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 does not interfere with the
pedals.
Use the following guidelines for
proper floor mat usage.
The original equipment floor
mats were designed for your
vehicle. If the floor mats need
replacing, it is recommended
that certified floor mats be
purchased. Non-certified floor
mats may not fit properly and
may interfere with the pedals.
Always check that the floor mats
do not interfere with the pedals.
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.
The driver side floor mat is held in
place by two button-type retainers.
The passenger side floor mat is held
in place by one button-type retainer.
1. Pull up on the rear of the floor
mat to unlock each retainer and
remove.
2. Reinstall by lining up the floor
mat retainer 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.