Ford Expedition Owner's Manual page 269

• 4L (4X4 LOW) provides electronically locked four-wheel drive when
extra power at reduced speeds is required. The message center will
display "4X4 LOW" when this position is selected. This position is not
recommended for use on dry pavement. Use this position for off-road
low-speed operation or when extra power is required, such as climbing
steep grades, going through deep sand or pulling a boat out of the
water.
Note: If your vehicle is equipped with AdvanceTrac with RSC , the
AdvanceTrac with RSC system will automatically turn off the stability
enhancement feature when you shift the Control Trac four-wheel drive
system into 4L (4X4 LOW). The brake traction enhancement feature will
still be enabled.
The AdvanceTrac with RSC stability enhancement system can be
turned off manually by pressing the AdvanceTrac with RSC button
(refer to AdvanceTrac with Roll Stability Control™ (RSC ) Stability
Enhancement System in this chapter) while operating in 2H, 4A or 4H
while driving in deep sand, very deep snow or more strenuous off-road
maneuvers. This will disable the engine management feature, allowing
the vehicle to maintain full power and enhanced momentum through the
obstacle.
WARNING: 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.
Shifting between modes
Shifting between 2H and 4A or 4H
Move the control from 2H to the 4A or 4H position at any forward speed
or at a stop. The message center may display 4X4 SHIFT IN
PROGRESS during the system shift. The message center will then
display 4X4 AUTO if 4A is selected or 4X4 if 4H is selected. The message
center will momentarily display 4X2 if 2H is selected.
Shifting between 4A and 4H
Move the control between 4A to 4H at a stop or while driving at any
speed. The message center will display 4X4 if 4H is selected and 4X4
Auto if 4A is selected.
2012 Expedition (exd)
Owners Guide, 1st Printing
USA (fus)
Driving
269