Four-Wheel Drive; How Does Four-Wheel Drive Work - Ford SUPER DUTY 2024 Owner's Manual

HOW DOES FOUR-WHEEL
DRIVE WORK
Using the Electronic Shift On the
Fly System
(If Equipped)
This four-wheel drive system utilizes a
2-speed Electronic Shift On the Fly (ESOF)
transfer case which is also known as a
part-time system. This system offers the
driver two-wheel drive high, four-wheel
drive high, and four-wheel drive low as
available modes of operation. When you
select either four-wheel drive high or
four-wheel drive low, the system provides
mechanically locked four-wheel drive
power to both the front and rear wheels
for use in off-road or slippery conditions
such as deep snow, sand or mud. When
you select four-wheel drive low, the system
provides additional gearing for increased
torque multiplication for conditions like
deep sand, steep slopes, or pulling heavy
objects. Additionally, the system is capable
of recreational flat towing by putting the
transfer case into a neutral position. See
Recreationally Towing Your Vehicle
(page 426).
There is further information available on
driving in unique driving conditions. See
Off-Road Driving (page 409).
E339076
2024 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202307, DOM

Four-Wheel Drive

(If Equipped)
Your vehicle has manual hub locks on
either the driver side or the driver and
passenger side of your vehicle. For proper
operation, make sure that each hub is fully
engaged and that both hub locks are set
to the same position (both set to lock or
both set to auto). To engage lock, turn the
hub locks completely clockwise. To engage
auto, turn the hub locks completely
counterclockwise.
The ESOF four-wheel drive system:
• Provides 4x4 High engagement and
disengagement while the vehicle is
moving.
• Operates by a push button control
located on the instrument panel that
allows you select 4x2, 4x4 High or 4x4
Low operation.
• Uses auto-manual hub locks. When set
to auto, the hubs engage and
disengage automatically based on the
4x4 mode you select. When set to lock,
the hubs remain engaged at all times.
• Increases fuel economy when used in
the hub lock's recommended auto
mode.
Note: Auto-manual hub locks manually
lock by rotating the hub lock control from
auto to lock.
Note: Hub locks should be in auto mode
when in 4x2 mode. If hub locks are in lock
mode in 4x2 mode, there will be additional
noise from the front axle.
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