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Note: The information display may show
messages during 4WD operation. See
Information Messages (page 125).
Your 4X4 control is located in one of the
following locations:
• On the instrument panel.
• On the DRIVE MODE selection switch.
2H - 4X2
Delivers power to the rear wheels only. The
information display momentarily shows
2H when this mode is selected. This mode
is appropriate for normal on-road driving
on dry pavement and provides the best
fuel economy.
Note: 2H may turn on or off automatically
based on Drive Mode selection. See Drive
Control (page 266).
4A - 4X4 AUTO
Provides electronic controlled four-wheel
drive with power delivered to the front and
rear wheels, as required, for increased
traction. When you select this mode, the
information display shows 4A. The system
continuously monitors road conditions,
driver input as well as other vehicle sensors
and optimizes the system's behavior based
on drive mode selection.
Note: On vehicles with a rotary drive mode
switch, 4A should remain on in Mud/Rut and
Sand but with aggressive tuning which
provides electronically locked four-wheel
drive power to front and rear wheels, the
same as traditional 4H.
Note: 4A may turn on or off automatically
based on Drive Mode selection. See Drive
Control (page 266).
4H - 4X4 HIGH
Provides electronically locked four-wheel
drive power to front and rear wheels. When
you select this mode, the information
display shows 4H. This mode is not
recommended for use on dry pavement.
This mode is only intended for severe
winter or off-road conditions, such as deep
snow, ice or shallow sand.
Note: 4H may turn on or off automatically
based on Drive Mode selection. In
configurations with a rotary Drive Mode
switch, 4H functionality is within the
Mud/Ruts and Sand Drive Modes even when
the indicator lamp shows 4A. See Drive
Control (page 266).
4L - 4X4 LOW
Provides electronically locked four-wheel
drive power to both the front and rear
wheels with additional gearing for
increased torque multiplication. Intended
only for off-road applications such as deep
sand, steep grades, or pulling heavy
objects. 4L - 4X4 low does not engage
when your vehicle is moving above 3 mph
(5 km/h); this is normal and should be no
reason for concern. Refer to Shifting to or
from 4L - 4X4 low for proper operation.
Note: 4L may turn off automatically based
on Drive Mode selection. See Drive Control
(page 266).
Shifting Between 4WD System Modes
Note: Momentarily releasing the accelerator
pedal when a shift in progress message
displays improves engagement and
disengagement performance.
Note: Do not perform this operation if the
rear wheels are slipping.
Note: Some noise may be heard as the
system shifts or engages; this is normal.
207
Expedition (TB8) Canada/United States of America, enUSA, Edition date: 201808, Second-Printing
Four-Wheel Drive (If Equipped)
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