2021 FORD F-150 lock

HOW DOES FOUR-WHEEL
DRIVE WORK - RAPTOR
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
mechanically locked power to the front
and rear wheels for use in off-road or
slippery conditions such as deep snow,
sand or mud. Selecting four-wheel drive
low also 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
neutral (N). See Recreationally Towing
Your Vehicle (page 490).
There is further information on driving in
unique driving conditions.
See Off-Road
Driving (page 470).
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. Selecting
four-wheel drive low also 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 neutral (N). See
Recreationally Towing Your Vehicle
(page
490).
There is further information on driving in
unique driving conditions.
See Off-Road
Driving (page 470).
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 or mechanically locked
power to the front and rear wheels for use
in off-road or slippery conditions such as
deep snow, sand or mud. Selecting
four-wheel drive low also provides
additional gearing for increased torque
multiplication for conditions like deep
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sand, steep slopes, or pulling heavy
objects. Additionally, the system is capable
of recreational flat towing by putting the
transfer case into neutral (N). See
Recreationally Towing Your Vehicle
(page
490).
There is further information on driving in
unique driving conditions.
See Off-Road
Driving (page 470).
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:
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.
Truck and utility vehicles can differ from
some other vehicles. Your vehicle could be
higher to allow it to travel over rough
terrain without getting stuck or damaging
underbody components. The differences
that make your vehicle so versatile also
make it handle differently than an ordinary
passenger car. Always maintain steering
wheel control, especially in rough terrain.
Since sudden changes in terrain can result
in abrupt steering wheel motion, make sure
you grip the steering wheel from the outside. Do not grip the spokes. Drive
cautiously to avoid vehicle damage from
concealed objects such as rocks and
stumps. Drive slower in strong crosswinds
which can affect the normal steering
characteristics of your vehicle. Be
extremely careful when driving on
pavement made slippery by loose sand,
water, gravel, snow or ice.
Note:
Do not use four-wheel drive high or
four-wheel drive low mode on dry, hard
surfaced roads. Doing so can produce
excessive noise, increase tire wear and can
damage drive components.
FOUR-WHEEL DRIVE
LIMITATIONS
Operating Four-Wheel Drive with
a Spare or Mismatched Tires
(If
Equipped)
On four-wheel drive vehicles, the size of
the spare tire can affect the four-wheel
drive system. If there is a significant
difference between the size of the spare
tire and the remaining tires, you could have
limited four-wheel drive functionality.
When driving with the full-size dissimilar
spare wheel and tire assembly, we
recommend that you do not:
• Exceed
50 mph (80 km/h) with a
four-wheel drive mode turned on.
• Turn on a four-wheel drive mode
unless the vehicle is stationary.
• Use a four-wheel drive mode on dry
pavement.
Driving with the full-size dissimilar spare
wheel and tire assembly can limit
four-wheel drive functionality, especially
when driving in a mechanically locked
four-wheel drive mode. You can experience
the following:
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•
Additional noise from the transfer case
or other drive components.
• Difficulty shifting out of a mechanically
locked four-wheel drive mode.
Use of a dissimilar spare wheel and tire
assembly can lead to impairment of the
following:
• Comfort and noise.
• Winter weather driving capability.
• Wet driving capability.
• Four-wheel drive capability.
Mechanical Shift Blocking
On four-wheel drive vehicles with a
mechanically locked four-wheel drive high
mode, the transfer case distributes torque
to the front wheels by mechanically
interlocking the front and rear driveshafts
together. Various external factors can
affect shifting performance of this type of
system including, but not limited to:
• Vehicle acceleration.
• Dissimilar tire sizes.
• Steering input.
If the system detects a mechanical shift
blockage at speed after you select
two-wheel drive high, the message "4x4
Unable to Disengage See Manual", could
display momentarily. If this message
displays, one or more of the following
actions can relieve the mechanical shift
block:
• Momentary acceleration.
• Momentary braking.
• Bringing the vehicle to a stop.
• Shifting the transmission to neutral and
back to drive.
• Shifting the transmission to reverse
and back to drive.
• Driving the vehicle around a tight turn
at a slow speed. SELECTING A FOUR-WHEEL
DRIVE MODE - RAPTOR
The four-wheel drive mode control is on
the instrument panel.
To select a four-wheel drive mode, press
the four-wheel drive mode control button
of the desired mode. You can select
two-wheel drive high (2H), four-wheel
drive high (4H), or four-wheel drive auto
(4A) at a stop or while driving. Once the
shift is complete, the information display
will then display the selected four-wheel
drive mode. While shifts are in progress,
the lights on the four-wheel drive control
switch can flash and you could see
messages in the information display
indicating that a shift is in progress or to
release the accelerator pedal to improve
shift performance.
Note:
Do not perform this operation if the
rear wheels are slipping or while applying
the accelerator pedal.
Note: You could hear some noise as the
system shifts or engages, which is normal.
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If the system detects a fault, a warning
message appears in the information
display. See Four-Wheel Drive –
Information Messages (page 299).
Shifting to or from Four-Wheel
Drive Low (4L)
To select or exit four-wheel drive low (4L):
1. Bring your vehicle to a speed of
3 mph
(5 km/h) or less.
2. Place the transmission in neutral (N).
3. Press the desired four-wheel drive button on the four-wheel drive mode
control switch.
The information display will display a
message indicating a four-wheel drive shift
is in progress. If any of the above shift
conditions are not present, the shift does
not occur and the information display will
display information guiding the driver
through the proper shifting procedures. If
there is a transfer case tooth blockage, a
message displays in the information
display. To alleviate this condition, place
the transmission in a forward gear, move
your vehicle forward approximately
5 ft
(1.5 m), and shift the transmission back to
neutral (N) to allow the transfer case to
complete the range shift.
Note: You could hear some noise as the
system shifts or engages, which is normal.
If the system detects a fault, a warning
message appears in the information
display.
See Four-Wheel Drive –
Information Messages (page 299). SELECTING A FOUR-WHEEL
DRIVE MODE
The four-wheel drive mode control is on
the instrument panel.
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To select a four-wheel drive mode, press
the four-wheel drive mode control button
of the desired mode. You can select
two-wheel drive high (2H), four-wheel
drive high (4H), or if your vehicle has
four-wheel drive auto (4A) at a stop or
while driving. Once the shift is complete,
the information display will then display
the selected four-wheel drive mode. While
shifts are in progress, the lights on the
four-wheel drive control switch can flash
and you could see messages in the
information display indicating that a shift
is in progress or to release the accelerator
pedal to improve shift performance.
Note:
Do not perform this operation if the
rear wheels are slipping or while applying
the accelerator pedal.
Note: You could hear some noise as the
system shifts or engages which is normal.
If the system detects a fault, a warning
message appears in the information
display. See Four-Wheel Drive –
Information Messages (page 299).
Shifting to or from Four-Wheel
Drive Low (4L)
To select or exit four-wheel drive low (4L):
1. Bring your vehicle to a speed of
3 mph
(5 km/h) or less.
2. Place the transmission in neutral (N)
3. Press the desired four-wheel drive button on the four-wheel drive mode
control switch.
The information display will display a
message indicating a four-wheel drive shift
is in progress. If any of the above shift
conditions are not present, the shift will
not occur and the information display will
display information guiding the driver
through the proper shifting procedures. If
there is a transfer case tooth blockage a
message will display in the information display. To alleviate this condition, place
the transmission in a forward gear, move
your vehicle forward approximately
5 ft
(1.5 m), and shift the transmission back to
neutral (N) to allow the transfer case to
complete the range shift.
Note: You could hear some noise as the
system shifts or engages which is normal.
If the system detects a fault, a warning
message appears in the information
display.
See Four-Wheel Drive –
Information Messages (page 299).
FOUR-WHEEL DRIVE MODES
TWO-WHEEL DRIVE HIGH
Two-wheel drive high is for general
on-road driving. Power is sent to the rear
wheels only.
Note: Two-wheel drive high can turn on or
off based on Drive Mode selection See Drive
Mode Control
(page 371).
FOUR-WHEEL DRIVE AUTO
(If
Equipped)
Four-wheel drive auto provides
electronically controlled four-wheel drive
power to both the front and rear wheels,
as required, for increased traction in varying
on-road conditions. The four-wheel drive
auto tuning varies based on selected Drive
Mode.
See Selecting a Drive Mode (page
373).
Note: Four-wheel drive auto can turn on or
off automatically based on Drive Mode
selection.
See Selecting a Drive Mode
(page 373).
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FOUR-WHEEL DRIVE HIGH -
RAPTOR
Four-wheel drive high provides
mechanically locked four-wheel drive
power to both the front and rear wheels
for use in off-road or winter conditions
such as deep snow, sand or mud. This
mode is not for use on dry pavement.
Note:
Four-wheel drive high can turn on or
off automatically based on Drive Mode
selection. See Selecting a Drive Mode
(page 373).
FOUR-WHEEL DRIVE HIGH
Four-wheel drive high provides
electronically or mechanically locked
four-wheel drive power to both the front
and rear wheels for use in off-road or
winter conditions such as deep snow, sand
or mud. This mode is not for use on dry
pavement.
Note: Four-wheel drive high can turn on or
off automatically based on Drive Mode
selection.
See Selecting a Drive Mode
(page 373).
FOUR-WHEEL DRIVE LOW -
RAPTOR
Four-Wheel Drive Low provides
mechanically locked four-wheel drive
power to both the front and rear wheels
for use on low traction surfaces, but does
so with additional gearing for increased
torque multiplication. The intent of this
mode is only for off-road conditions such
as deep sand, steep slopes, or pulling
heavy objects.
Note: Four-wheel drive low can turn on or
off automatically based on drive mode
selection.
See Selecting a Drive Mode
(page 373). FOUR-WHEEL DRIVE LOW
Four-wheel drive low provides
electronically or mechanically locked
four-wheel drive power to both the front
and rear wheels for use on low traction
surfaces, but does so with additional
gearing for increased torque multiplication.
This mode is only for off-road conditions
such as deep sand, steep slopes, or pulling
heavy objects.
Note:
Four-wheel drive low can turn on or
off automatically based on drive mode
selection.
See Selecting a Drive Mode
(page 373).
FOUR-WHEEL DRIVE
INDICATORS
Two-wheel Drive High Momentarily illuminates when
two-wheel drive high is selected.
Four-wheel Drive Auto
(If Equipped) Continuously illuminates when
four-wheel drive auto is selected.
Four-wheel Drive High Continuously illuminates when
four-wheel drive high is selected.
Four-wheel Drive Low Continuously illuminates when
four-wheel drive low is selected.
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FOUR-WHEEL DRIVE –
TROUBLESHOOTING
FOUR-WHEEL DRIVE – WARNING
LAMPS
Illuminates when a four-wheel
drive or power train fault is
present.
Note:
When a system fault is present, the
system can typically remain in whichever
mode was selected prior to the fault
condition occurring. It does not default to
two-wheel drive in all circumstances. When
this warning is displayed, have your vehicle
serviced by an authorized dealer.
FOUR-WHEEL DRIVE – INFORMATION MESSAGES - RAPTOR Action
Message
A four-wheel drive system fault is present.Have your vehicle checked as soon as possible.
Check 4x4
The four-wheel drive system is making ashift.
4x4 Shift in Progress
Displays when you attempt to switch to
four-wheel drive low mode and you do not shift the transmission to neutral (N).
For 4x4 LOW Shift to N
Displays when you attempt to switch tofour-wheel drive low mode and your
vehicle's speed is greater than 3 mph
(5 km/h).
For 4x4 LOW Slow to 3 MPH
For 4x4 LOW Slow to 5 km/h
Displays when you attempt to switch from
four-wheel drive low mode and you do notshift the transmission to neutral (N).
To Exit 4x4 LOW Shift to N
Displays when you attempt to switch fromfour-wheel drive low mode and your
vehicle's speed is greater than
3 mph
(5 km/h).
To Exit 4x4 LOW Slow to 3 MPH
To Exit 4x4 LOW Slow to 5 km/h
Displays when there is a transfer case geartooth blockage while shifting to or from
four-wheel drive low mode or to the neutral state. Place the transmission in a forward
gear, move your vehicle forward approxim-
ately
5 ft (1.5 m), and shift the transmission
back to neutral (N) to allow the transfer case to complete the range shift.
Shift Delayed Drive Forward
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Action
Message
Displays when the four-wheel drive systemdetects a mechanical shift block when
shifting out of four-wheel drive high. See
Four-Wheel Drive Limitations (page 292).
4x4 Unable to Disengage. See Manual
Displays when the four-wheel drive systemresumes normal function.
4x4 Restored
Displays when the four-wheel drive systemdetects driving conditions which tempor- arily require greater four-wheel drive
performance. The system automatically
resumes normal function after the system
no longer detects these driving conditions.
4X4 Temporarily Locked
Displays when the system requires an
additional transmission shift to neutral (N) to complete a transfer case shift.
Shift to Neutral
Displays when you command a four-wheeldrive shift during conditions which arepotentially harmful to the driveline components.
To Engage 4x4 Slow to 3 MPH
To Engage 4x4 Slow to 5 km/h
Displays when the four-wheel drive systemrequests that you release the accelerator
pedal to complete a four-wheel drive shift.
See Selecting a Four-Wheel Drive Mode (page 294).
To Engage 4x4 Release Accelerator Pedal
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