FORD 2008 Explorer v.3 - Manual (Page 147)

In extreme climates, excessive ice buildup may occur, causing
the running boards not to deploy. Be sure that the running
boards have deployed, and have finished moving before attempting to
step on them. Note: The running boards will resume normal function
once the blockage is cleared.
Turn off the running boards before working under the vehicle,
jacking, or placing any object under the vehicle. Never place
your hand in the hinge assemblies. A moving running board may cause
injury
POSITIVE RETENTION FLOOR MAT
Do not install additional floor mats on top of the factory installed
floor mats as they may interfere with the accelerator or the
brake pedals.
Position the driver floor mat so that
the eyelet is over the pointed end of
the retention post and rotate
forward to lock in. Make sure that
the mat does not interfere with the
operation of the accelerator or the
brake pedal. To remove the floor
mat, reverse the installation
procedure.
CARGO COVER (IF EQUIPPED)
Your vehicle may be equipped with a cargo area cover that covers the
luggage compartment of your vehicle.
Driver Controls
147