FORD 2005 Expedition v.1 - Manual (Page 277)

Utility and four-wheel drive vehicles are not designed for
cornering at speeds as high as passenger cars any more than
low-slung sports cars are designed to perform satisfactorily under
off-road conditions. Avoid sharp turns or abrupt maneuvers in these
vehicles.
Note: The Control Trac selector knob should not be changed while the
rear wheels are slipping.
Using the Control Trac system
Vehicles equipped with a message center will provide an audible tone
and a temporary display of the Control Trac Four-Wheel Drive System
mode after a mode change has been successfully completed.
Shifting from 2H to A4WD or 4H
Move the control to the A4WD or
4H position at any forward speed up
to 55 mph (88 km/h). The “4X4”
light in the instrument cluster will
illuminate if 4H is selected.
Shifting from A4WD to 4H
Move the control from A4WD to 4H
at a stop or while driving at any
speed.
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2005 Expedition (exd), Owners Guide (post-2002-fmt) (own2002),
Market: USA_English (fus)
Driving
277