FORD 2010 Expedition v.3 - Manual (Page 137)

Note: The running boards may operate slower in cooler temperatures. In
adverse conditions, debris such as mud, dirt, and salt may become
trapped in the running board mechanism, possibly leading to unwanted
noise. If this occurs, manually set the running boards to the deployed
position and flush the system (in particular the front and rear hinge
arms) with a high-pressure car wash wand.
Note: Do not use the running boards, front and rear hinge assemblies,
running board motors, or the running board under body mounts to lift
the vehicle when jacking. Please utilize proper jacking points. Refer to
Changing the tires in the Roadside Emergencies chapter.
WARNING: 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.
WARNING: Turn off the running boards before jacking or
placing any object under the vehicle. Never place your hand
between the extended running board and the vehicle. A moving
running board may cause injury.
SPEED CONTROL (IF EQUIPPED)
With speed control set, you can maintain a set speed without keeping
your foot on the accelerator pedal.
WARNING: Do not use the speed control in heavy traffic or on
roads that are winding, slippery or unpaved.
Driver Controls
137
2010 Expedition (exd)
Owners Guide, 3rd Printing
USA (fus)