2021 FORD F-150 spare wheel

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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WHAT IS THE ELECTRONIC
LOCKING DIFFERENTIAL
The electronic locking differential is a
device housed in the rear axle, and can
provide additional traction when needed.
HOW DOES THE ELECTRONIC
LOCKING DIFFERENTIAL
WORK - RAPTOR
You can activate the differential
electronically and shift it on the fly within
the operating speed range. The electronic
differential disengages when the vehicle
speed exceeds a set value and it reengages
when the vehicle speed goes below a set
value depending on drive mode. See
Switching the Electronic Locking
Differential On and Off (page 303). The
electronic locking differential is for use in
mud, rocks, sand, or any off-road condition
where you need maximum traction.
Note:
The electronic locking differential can
activate or deactivate automatically based
on speed, four-wheel drive mode, and drive
mode selection. See Switching the
Electronic Locking Differential On and
Off
(page 303).
Note: The electronic locking differential is
for off-road use only and is not for use on
dry pavement. Using the electronic locking
differential on dry pavement results in
increased tire wear, noise and vibration.
Note: The electronic locking differential is
not available in 2H. HOW DOES THE ELECTRONIC
LOCKING DIFFERENTIAL
WORK
You can activate the differential
electronically and shift it on the fly within
the operating speed range. The electronic
differential disengages when the vehicle
speed exceeds a set value, and reengages
when the vehicle speed goes below a set
value. See
Switching the Electronic
Locking Differential On and Off (page
303). It also engages based on certain
selected drive modes. See Selecting a
Drive Mode (page 373). The electronic
locking differential is for use in mud, rocks,
sand, or any off-road condition where you
need maximum traction.
Note: The electronic locking differential can
activate or deactivate automatically based
on speed, four-wheel drive mode, and drive
mode selection.
See Switching the
Electronic Locking Differential On and
Off
(page 303).
Note: The electronic locking differential is
for off-road use only and is not for use on
dry pavement. Using the electronic locking
differential on dry pavement results in
increased tire wear, noise and vibration.
ELECTRONIC LOCKING
DIFFERENTIAL PRECAUTIONS
Operating the Electronic Locking
Differential with a Spare or
Mismatched Tires
On vehicles with an electronic locking
differential, the size of the spare tire can
affect performance of the system. If there
is a significant difference between the two
rear tires, you may have limited electronic
locking differential functionality. If the
system has difficulty disengaging, release
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(If Equipped)

the accelerator pedal and turn the steering
wheel in the opposite direction when
rolling. We recommend engaging and
disengaging the electronic locking
differential at a stop when you mount a
spare on the rear axle.
SWITCHING THE ELECTRONIC
LOCKING DIFFERENTIAL ON
AND OFF - RAPTOR
The button to activate and deactivate the
electronic locking differential is in the
center of the drive mode rotary switch.
To manually activate or deactivate the
electronic locking differential, press the
electronic locking differential button.
Note:
The electronic locking differential can
activate or deactivate automatically based
on speed, four-wheel drive mode, and drive
mode selection. See Selecting a Drive
Mode (page 373).
Rear Electronic Locking Differential Engagement Speed and Availability Automatic Re-
Engagement Speed
Automatic Disen-
gagement Speed
Maximum Engage-
ment Speed
Drive Modes
20 mph (30 km/h)
25 mph (41 km/h)
20 mph (30 km/h)
Normal (4A, 4H)
20 mph (30 km/h)
25 mph (41 km/h)
20 mph (30 km/h)
Sport (4A, 4H)
20 mph (30 km/h)
25 mph (41 km/h)
20 mph (30 km/h)
Slippery (4A, 4H)
20 mph (30 km/h)
25 mph (41 km/h)
20 mph (30 km/h)
Tow/Haul (4A,4H)
No Speed Limit
No Speed Limit
No Speed Limit
Off-Road (4H) 1
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LANE CENTERING LIMITATIONS
Adaptive cruise control limitations apply
to lane centering unless stated otherwise
or contradicted by a lane centering
limitation. See Adaptive Cruise Control
Limitations (page 353).
Lane Centering may not correctly operate
in any of the following conditions:
• The lane is too narrow or wide.
• The system does not detect at least
one lane marking or when lanes merge
or split.
• Limited steering torque input is applied.
• Areas under construction or new
infrastructure.
• When modifications to the steering
system have been made.
• When using a spare tire.
• In high wind conditions.
Note: The driving assistance torque is
limited and may not be sufficient for all
driving situations such as driving through
tight curves or driving through curves at high
speeds.
Note: In exceptional conditions, such as
inclement weather or direct sunlight, the
system could deviate from the center line
or could cancel.
SWITCHING LANE CENTERING ON
AND OFF
You must keep your hands on the steering
wheel at all times.
The controls are on the steering wheel. Press the button.
The indicator appears in the information
display. When the system is on, the color
of the indicator changes to indicate the
system status. You can override the system at any time
by steering your vehicle.
Note:
The correct requirements must be
met before you can switch the system on.
See
Lane Centering Requirements (page
359).
Enabling and Disabling Lane
Centering
1. Press
Features on the touchscreen.
2. Press
Driver Assistance.
3. Press
Cruise Control.
4. Press
Lane Centering Assist.
LANE CENTERING ALERTS
You must keep your hands on the steering
wheel at all times.
When the system is active and detects no
steering activity for a period of time, the
system alerts you to put your hands on the
steering wheel. If you do not react to the
warnings the system cancels and slows
your vehicle down to idle speeds while
maintaining steering control.
See Lane
Centering Automatic Cancellation
(page
360).
The system also alerts you if your vehicle
crosses lane markings without detected
steering activity.
Note: The system could detect a light grip
or touch on the steering wheel as hands-off
driving.
LANE CENTERING AUTOMATIC
CANCELLATION
When an external condition cancels the
system, for example, no lane markings
available, a tone sounds and a message
appears in the instrument cluster display.
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WARNING: Do not use the system
if any changes or modifications to the
steering wheel have been made. Any
changes or modifications to the steering
wheel could affect the functionality or
performance of the system. Failure to
follow this instruction could result in the
loss of control of your vehicle, personal
injury or death. WARNING:
The system may not
function if the sensor is blocked. WARNING:
Pay close attention to
changing road conditions such as
entering or leaving a highway, on roads
with intersections or roundabouts, roads
without visible lanes of travel, roads that
are winding, slippery, unpaved, or steep
slopes. WARNING:
The system is not a
crash warning or avoidance system. WARNING:
Large contrasts in
outside lighting can limit sensor
performance. WARNING:
The system attempts
to keep your vehicle in the center of the
lane as well as maintain speed and gap
control. The system may not be able to
perform these tasks in all situations. Do
not use the system in complex or
uncertain driving conditions. Failure to
follow this instruction could result in the
loss of control of your vehicle, personal
injury or death. WARNING: Your vehicle could drift
out of the lane of travel. Always be
prepared to manually steer your vehicle.
Failure to follow this instruction could
result in the loss of control of your
vehicle, personal injury or death. WARNING:
The system will not
operate if the sensor cannot track the
road lane markings.
BLUECRUISE REQUIREMENTS
BlueCruise only activates when all of the
following occur:
• BlueCruise is enabled in your
information and entertainment screen.
See
BlueCruise Settings (page 367).
• Adaptive cruise control is on.
• The system detects both lane
markings.
• Your hands are on the steering wheel.
• Your eyes are on the road.
Note: For hands-free mode to work, your
vehicle must be on certain limited access
divided freeways.
Note: The system may require updated
software for hands-free mode. See Vehicle
System Updates
(page 656).
BLUECRUISE LIMITATIONS
Any of the following conditions could result
in BlueCruise not correctly operating:
• You do not have your vehicle centered
in the lane.
• The lane is too narrow or too wide.
• The system does not detect at least
one lane marking or when lanes merge
or split.
• You are applying a low amount of
steering input.
• You are using the system in areas under
construction.
• If you make any aftermarket
modifications to the steering system.
• You are using a spare tire.
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(If Equipped)

LOCATING THE TIRE LABEL
You will find a Tire Label
containing tire inflation pressure
by tire size and other important
information located on the B-Pillar
or the edge of the driver's door.
See Locating the Safety
Compliance Certification
Labels
(page 413).
DEPARTMENT OF
TRANSPORTATION UNIFORM
TIRE QUALITY GRADES Tire Quality Grades apply to new
pneumatic passenger car tires.
The Quality grades can be found
where applicable on the tire
sidewall between tread shoulder
and maximum section width. For
example:
Treadwear 200
Traction AA Temperature A.
These Tire Quality Grades are
determined by standards that the
United States Department of
Transportation has set. Tire Quality Grades apply to new
pneumatic passenger car tires.
They do not apply to deep tread,
winter-type snow tires,
space-saver or temporary use
spare tires, light truck or LT type
tires, tires with nominal rim
diameters of 10 to 12 inches or
limited production tires as defined
in Title 49 Code of Federal
Regulations Part 575.104 (c)(2).
U.S. Department of
Transportation Tire quality
grades:
The U.S. Department of
Transportation requires us to give
you the following information
about tire grades exactly as the
government has written it.
Treadwear
The treadwear grade is a
comparative rating based on the
wear rate of the tire when tested
under controlled conditions on a
specified government test course.
For example, a tire graded 150
would wear 1½ times as well on
the government course as a tire
graded 100. The relative
performance of tires depends
upon the actual conditions of their
use, however, and may depart
significantly from the norm due to
variations in driving habits, service
practices, and differences in road
characteristics and climate.
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*Tread area of the tire: Area of
the perimeter of the tire that
contacts the road when mounted
on the vehicle.
*Rim: The metal support (wheel)
for a tire or a tire and tube
assembly upon which the tire
beads are seated.
TIRE REPLACEMENT
REQUIREMENTS
AGE WARNING:
Tires degrade
over time depending on many
factors such as weather, storage
conditions, and conditions of use
(load, speed, inflation pressure)
the tires experience throughout
their lives.
In general, tires should be
replaced after six years
regardless of tread wear.
However, heat caused by hot
climates or frequent high loading
conditions can accelerate the
aging process and may require
tires to be replaced more
frequently.
You should replace your spare
tire when you replace the road
tires or after six years due to
aging even if it has not been
used. U.S. DOT Tire Identification
Number
Both United States and Canada
Federal regulations require tire
manufacturers to place
standardized information on the
sidewall of all tires. This
information identifies and
describes the fundamental
characteristics of the tire and also
provides a U.S. DOT Tire
Identification Number for safety
standard certification and in case
of a recall.
This begins with the letters DOT
and indicates that the tire meets
all federal standards. The next
two numbers or letters are the
plant code designating where it
was manufactured, the next two
are the tire size code and the last
four numbers represent the week
and year the tire was built. For
example, the numbers 317 mean
the 31st week of 1997. After 2000,
the numbers go to four digits. For
example, 2501 means the 25th
week of 2001. The numbers in
between are identification codes
used for traceability. This
information is used to contact
customers if a tire defect requires
a recall.
Tire Replacement
Requirements
Your vehicle is equipped with tires
designed to provide a safe ride
and handling capability.
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