dry pavement. This position is only intended for severe winter or
off-road conditions, such as deep snow, ice or shallow sand.
•
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
威
with RSC
威
, the
AdvanceTrac
威
with RSC
威
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
威
with RSC
威
stability enhancement system can be
turned off manually by pressing the AdvanceTrac
威
with RSC
威
button
(refer to
AdvanceTrac
威
with Roll Stability Control™ (RSC
威
) 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.
Driving
314
2010 Expedition
(exd)
Owners Guide
(own2002)
, 1st Printing
USA
(fus)
