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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 either
four-wheel drive high or four-wheel drive
low are selected, 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
four-wheel drive low is selected, the
system provides additional gearing for
increased torque multiplication for
conditions like deep sand, steep grades, 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 443).
Using the 2-Speed Automatic
Four-Wheel Drive System (If Equipped)
The 2-speed automatic four-wheel drive
system utilizes an electronically controlled
on-demand 2-speed transfer case. This
system monitors various vehicle sensory
inputs to provide an increased level of
performance. This system offers the driver
two-wheel drive high, four-wheel drive
auto, four-wheel drive high, and four-wheel
drive low as available modes of operation.
When four-wheel drive auto is selected,
the system continuously varies power to
the front wheels for optimum performance
for all on-road conditions. When either
four-wheel drive high or four-wheel drive
low are selected, the system provides
electronically locked power to the front
and rear wheels for use in off-road or
slippery conditions such as deep snow,
sand or mud. When four-wheel drive low
is selected, the system provides additional
gearing for increased torque multiplication
for conditions like deep sand, steep grades,
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 443).
FOUR-WHEEL DRIVE
PRECAUTIONS
WARNING: Vehicles with a higher
center of gravity (utility and four-wheel
drive vehicles) handle differently than
vehicles with a lower center of gravity
(passenger cars). Avoid sharp turns,
excessive speed and abrupt steering in
these vehicles. Failure to drive cautiously
increases the risk of losing control of your
vehicle, vehicle rollover, personal injury
and death.
WARNING: If the parking brake is
fully released, but the brake warning
lamp remains illuminated, the brakes
may not be working properly. Have your
vehicle checked as soon as possible.
WARNING: Do not become
overconfident in the ability of four-wheel
drive vehicles. Although a four-wheel
drive vehicle may accelerate better than
a two-wheel drive vehicle in low traction
situations, it won't stop any faster than
two-wheel drive vehicles. Always drive
at a safe speed.
260
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202007, First-Printing
Four-Wheel Drive (If Equipped)
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