suspension FORD F-350 2022 Owners Manual

HOW DOES STABILITY
CONTROL WORK
WARNING: Vehicle modifications
involving braking system, aftermarket
roof racks, suspension, steering system,
tire construction and wheel and tire size
may change the handling characteristics
of your vehicle and may adversely affect
the performance of the electronic
stability control system. In addition,
installing any stereo speakers may
interfere with and adversely affect the
electronic stability control system.
Reducing the effectiveness of the
electronic stability control system could
lead to an increased risk of loss of vehicle
control, vehicle rollover, personal injury
and death. WARNING:
Remember that even
advanced technology cannot defy the
laws of physics. It's always possible to
lose control of a vehicle due to
inappropriate driver input for the
conditions. Aggressive driving on any
road condition can cause you to lose
control of your vehicle increasing the risk
of personal injury or property damage.
Activation of the electronic stability
control system is an indication that at
least some of the tires have exceeded
their ability to grip the road; this could
reduce the operator's ability to control
the vehicle potentially resulting in a loss
of vehicle control, vehicle rollover,
personal injury and death. WARNING: You are responsible for
controlling your vehicle at all times. The
system is designed to be an aid and does
not relieve you of your responsibility to
drive with due care and attention. Failure
to follow this instruction could result in
the loss of control of your vehicle,
personal injury or death.
If a driving condition activates either the
stability control or traction control you may
experience the following conditions:
• The stability and traction control light
flashes.
• Your vehicle slows down.
• Reduced engine power.
The stability control system has several
features built into it to help you maintain
control of your vehicle:
Electronic Stability Control
Electronic stability control enhances your
vehicle ’s ability to prevent skids or lateral
slides by applying brakes to one or more
of the wheels individually and, if necessary,
reducing engine power.
Roll Stability Control
Roll stability control enhances your
vehicle ’s ability to prevent rollovers by
detecting your vehicle ’s roll motion and
the rate at which it changes by applying
the brakes to one or more wheels
individually.
Curve Control
Curve control enhances your vehicle ’s
ability to follow the road when cornering
severely or avoiding objects in the roadway.
Curve control operates by reducing engine
power and, if necessary, applying brakes
to one or more of the wheels individually.
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HYDRAULIC POWER
STEERING
HYDRAULIC POWER STEERING
GUIDELINES
To help prevent damage to the power
steering system:
•
Do not hold the steering wheel at its
furthest turning points for more than
three to five seconds when the engine
is running.
• Avoid continuously steering back and
forth with elevated engine RPM as this
may overheat the system. If trying to
free a stuck vehicle, pause between
attempts to allow the power steering
system to cool or seek assistance.
Typical steering and driving maneuvers
allow the system to cool.
• Do not operate the vehicle if the power
steering pump fluid level is below the
MIN mark on the reservoir.
• Some noise is normal during operation.
If excessive, check for low power
steering pump fluid level before
seeking service by your dealer.
• Heavy or uneven efforts may be caused
by low power steering fluid. Check for
low power steering pump fluid level
before seeking service by your dealer.
• Do not fill the power steering pump
reservoir above the MAX mark on the
reservoir, as this may result in leaks
from the reservoir.
If the power steering system breaks down
or if you switch the engine off, you can
steer the vehicle manually, but it takes
more effort. If you have any steering components
serviced or replaced, install new fasteners.
Many fasteners have coatings with thread
adhesive, or have prevailing torque
features you cannot reuse. Do not reuse a
bolt or nut. Torque fasteners to
specifications.
Steering Tips
If the steering wanders or pulls, check for:
•
An improperly inflated tire.
• Uneven tire wear.
• Loose or worn suspension
components.
• Loose or worn steering components.
• Improper vehicle alignment.
Note: A high crown in the road or high
crosswinds may also make the steering
seem to wander or pull.
Electronic Torque Overlay Steering
(If Equipped) WARNING: The electric power
steering system has diagnostic checks
that continuously monitor the system. If
a fault is detected, a message displays
in the information display. Stop your
vehicle as soon as it is safe to do so.
Switch the ignition off. After at least 10
seconds, switch the ignition on and
watch the information display for a
steering system warning message. If a
steering system warning message
returns, have the system checked as
soon as possible. WARNING:
If the system detects
an error, you may not feel a difference in
the steering, however a serious condition
may exist. Have your vehicle checked as
soon as possible. Failure to do so may
result in loss of steering control.
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ROCK CRAWL - TREMOR, 4X4
For off-road driving and
optimum rock-climbing. Rock
crawl mode engages the
electronic locking differential, optimizes
throttle response and adjusts transmission
shift points to provide additional control
of your vehicle.
Four-wheel drive low is the only four-wheel
drive mode available in rock crawl mode.
The electronic locking differential engages
when you select this mode at any speed,
and you can disengage it at any time using
the button. See Switching the Electronic
Locking Differential On and Off (page
238).
TOW/HAUL - 4X4 For improved transmission
operation when towing a trailer
or a heavy load. This mode
moves upshifts to higher engine speeds to
reduce the frequency of transmission
shifting. This mode also provides engine
braking in all forward gears, which slows
your vehicle and assists you in controlling
your vehicle when descending a slope. The
amount of downshift braking provided
varies based on the amount you press the
brake pedal.
All four-wheel drive modes are selectable
in tow/haul mode. This mode does not
default to a certain four-wheel drive mode.
The system tunes the steering and
suspension to enhance driving comfort
when towing or carrying heavy loads. The electronic locking differential is
available below
25 mph (40 km/h). See
Switching the Electronic Locking
Differential On and Off
(page 238).
TOW/HAUL - 4X2 For improved transmission
operation when towing a trailer
or a heavy load. This mode
moves upshifts to higher engine speeds to
reduce the frequency of transmission
shifting. This mode also provides engine
braking in all forward gears, which slows
your vehicle and assists you in controlling
your vehicle when descending a slope. The
amount of downshift braking provided
varies based on the amount you press the
brake pedal.
The system tunes the steering and
suspension to enhance driving comfort
when towing or carrying heavy loads.
The electronic locking differential is
available below
25 mph (40 km/h). See
Switching the Electronic Locking
Differential On and Off
(page 238).
DRIVE MODE CONTROL –
TROUBLESHOOTING
DRIVE MODE CONTROL –
WARNING LAMPS Some drive modes reduce
traction and stability control
performance and the indicator
illuminates in the instrument cluster.
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WHAT IS THE LANE KEEPING
SYSTEM
The lane keeping system alerts you by
providing temporary steering wheel
vibration when it detects an unintended
lane departure.
HOW DOES THE LANE
KEEPING SYSTEM WORK
The lane keeping system uses a forward
looking camera mounted on the windshield
to monitor vehicle movement within the
travel lane.
When the camera detects a drift out of the
travel lane, the lane keeping system alerts
the driver by vibrating the steering wheel.
The driver can select the steering wheel
vibration intensity.
LANE KEEPING SYSTEM
PRECAUTIONS
WARNING: You are responsible for
controlling your vehicle at all times. The
system is designed to be an aid and does
not relieve you of your responsibility to
drive with due care and attention. 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. WARNING:
The sensor may
incorrectly track lane markings as other
structures or objects. This can result in
a false or missed warning. WARNING:
In cold and severe
weather conditions the system may not
function. Rain, snow and spray can all
limit sensor performance. WARNING:
The system may not
operate properly if the sensor is blocked.
Keep the windshield free from
obstruction. WARNING:
If damage occurs in the
immediate area surrounding the sensor,
have your vehicle checked as soon as
possible. WARNING:
The system may not
correctly operate if your vehicle is fitted
with a suspension kit not approved by
us. WARNING:
Large contrasts in
outside lighting can limit sensor
performance.
LANE KEEPING SYSTEM
LIMITATIONS
The lane keeping system only operates
when the vehicle speed is greater than
40 mph (64 km/h)
.
The system works when the camera can
detect at least one lane marking.
The lane keeping system may not correctly
operate in any of the following conditions:
• The lane keeping system does not
detect at least one lane marking.
• You switch the turn signal on.
• You apply direct steering, accelerate
fast or brake hard.
• The vehicle speed is less than
40 mph
(64 km/h).
• The anti-lock brake, stability control or
traction control system activates.
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(If Equipped)

Why does the vehicle not come back toward the middle of the lane, as expected, in the
Aid, or Aid + Alert mode?
High cross winds are present. There is a large road crown.
Rough roads, grooves or shoulder drop-offs.
Heavy, uneven loading of the vehicle or improper tire inflation pressure. You changed the tires or modified the suspension.
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WHAT IS DRIVER ALERT
Driver alert alerts you if it determines that
you are becoming drowsy or if your driving
deteriorates.
HOW DOES DRIVER ALERT
WORK
Driver Alert calculates your alertness level
based on your driving behavior in relation
to the lane markings and other factors
through use of the front camera sensor
behind the interior mirror.
DRIVER ALERT PRECAUTIONS
WARNING: You are responsible for
controlling your vehicle at all times. The
system is designed to be an aid and does
not relieve you of your responsibility to
drive with due care and attention. Failure
to follow this instruction could result in
the loss of control of your vehicle,
personal injury or death. WARNING: Take regular rest
breaks if you feel tired. Do not wait for
the system to warn you. WARNING:
Certain driving styles
may result in the system warning you
even if you are not feeling tired. WARNING:
In cold and severe
weather conditions the system may not
function. Rain, snow and spray can all
limit sensor performance. WARNING:
The system will not
operate if the sensor cannot track the
road lane markings. WARNING:
If damage occurs in the
immediate area surrounding the sensor,
have your vehicle checked as soon as
possible. WARNING:
The system may not
correctly operate if your vehicle is fitted
with a suspension kit not approved by
us. WARNING:
The system may not
operate properly if the sensor is blocked.
Keep the windshield free from
obstruction.
Note: If something is blocking the camera
or damaged the windshield, Driver Alert may
not function.
DRIVER ALERT LIMITATIONS
Driver alert may not function correctly if:
• The sensor cannot track the road lane
markings.
• Your vehicle's speed is less than
approximately
40 mph (65 km/h).
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Certain states require functioning trailer
brakes for trailers over a specified weight.
Be sure to check state regulations for this
specified weight.
Ford Motor Company recommends
separate functioning brake systems for
trailers weighing more than 1,500 lb
(680 kg) when loaded.
TOWING A TRAILER
LIMITATIONS
The vehicle's load capacity
designation is by weight, not by
volume, so you cannot necessarily
use all available space when
loading a vehicle or trailer.
Note: Your vehicle could have
reduced performance when
operating at high altitudes and
when heavily loaded or towing a
trailer. When driving at elevation,
to match driving performance as
perceived at sea level, reduce gross
vehicle weight and gross
combination weight by 2% per
1,000 ft (300 m)
elevation.
LOADING YOUR TRAILER
To help minimize how trailer
movement affects your vehicle
when driving:
• Load the heaviest items closest
to the trailer floor.
• Load the heaviest items
centered between the
left-hand and right-hand side
trailer tires. •
Load the heaviest items above
the trailer axles or just slightly
forward toward the trailer
tongue. Do not allow the final
trailer tongue weight to go
above or below 10-15% of the
loaded trailer weight. The
trailer tongue weight should
never exceed 10% of the
maximum towing capacity
when towing a conventional
trailer, and should never
exceed 15% of the maximum
towing capacity when towing
a fifth-wheel or gooseneck
trailer.
• Select a ball mount with the
correct rise or drop. When you
connect both the loaded
vehicle and trailer, the trailer
frame should be level, or
slightly angled down toward
your vehicle, when viewed from
the side.
TRAILER TOWING HINTS
Towing a trailer places an extra load on
your vehicle's engine, transmission, axle,
brakes, tires and suspension. Periodically
inspect these components during and after
any towing operation.
When driving with a trailer or payload, a
slight takeoff vibration or shudder may be
present due to the increased payload
weight.
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Why does the trailer not reverse
straight when using a conventional
trailer?
Factors such as the drawbar
connection to the hitch receiver, road
camber, road grade and compliance
in the trailer suspension can influence
how straight the system is able to
reverse your trailer when the knob is
not turned. You can compensate for
the trailer drifting to the right or left by
slowly turning the knob until the trailer
is following your preferred path and
then holding the knob in that position.
If you would like to recalibrate the
system for straight backing, change
the sticker option in the instrument
cluster display. Confirm the
measurements, and the system
prompts you to perform the calibration
procedure.
Why does the trailer not reverse
straight when using a fifth-wheel or
gooseneck trailer? Verify the sensor is correctly installed.
Other factors such as the hitch
connection, road camber, road slope
and trailer suspension could influence
how straight the system can reverse
the trailer when the control knob is not
turned. You can compensate for the
trailer drifting to the right or left by
slowly turning the knob until the trailer
is following your desired path and then
holding the knob in that position. Why does the system not detect a
sensor?
There could be an issue with the
connection, the wiring harness could
be damaged, you could have multiple
sensors connected or the sensor could
be incorrectly installed. Check that the
12-way connector is fully inserted into
the 12-way socket. The red rubber seal
is not visible when the connector is
fully inserted. Also check that the
wiring harness sensor connection is
fully inserted at the trailer sensor, and
check for damaged wiring between
the 12-way connector and the trailer
sensor. Also, check that the sensor is
installed on a vertical surface with the
arrows pointing straight up.
What does it mean if the system
remains on one message for an
extended time during calibration when
setting up the system with a
conventional trailer? The camera could need to be cleaned,
the sticker could be blocked, the
drawbar could be outside the allowed
range of 4–19 in (10–48 cm) or you
could need to move to a different area
to change the lighting and background.
Verify the sticker is in the proper
location. See
Applying the Trailer
Reversing Aid Sticker (page 341).
You can move to a different area or
change the direction you are driving or
setup the system at a different time
of day. Some trailers are not
compatible with the sticker and
camera system.
What does it mean if the system pauses
during calibration? There could be steering input or trailer
movement during the straight drive
portion of the calibration process.
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(If Equipped)

Why does the trailer not reverse
straight when using a conventional
trailer?
Factors such as the drawbar
connection to the hitch receiver, road
camber, road grade and compliance
in the trailer suspension can influence
how straight the system is able to
reverse your trailer when the knob is
not turned. You can compensate for
the trailer drifting to the right or left by
slowly turning the knob until the trailer
is following your preferred path and
then holding the knob in that position.
If you would like to recalibrate the
system for straight backing, change
the sticker option in the instrument
cluster display. Confirm the
measurements, and the system
prompts you to perform the calibration
procedure.
Why does the trailer not reverse
straight when using a fifth-wheel or
gooseneck trailer? Verify the sensor is correctly installed.
Other factors such as the hitch
connection, road camber, road slope
and trailer suspension could influence
how straight the system can reverse
the trailer when the control knob is not
turned. You can compensate for the
trailer drifting to the right or left by
slowly turning the knob until the trailer
is following your desired path and then
holding the knob in that position. Why does the system not detect a
sensor?
There could be an issue with the
connection, the wiring harness could
be damaged, you could have multiple
sensors connected or the sensor could
be incorrectly installed. Check that the
12-way connector is fully inserted into
the 12-way socket. The red rubber seal
is not visible when the connector is
fully inserted. Also check that the
wiring harness sensor connection is
fully inserted at the trailer sensor, and
check for damaged wiring between
the 12-way connector and the trailer
sensor. Also, check that the sensor is
installed on a vertical surface with the
arrows pointing straight up.
What does it mean if the system
remains on one message for an
extended time during calibration when
setting up the system with a
conventional trailer? The camera could need to be cleaned,
the sticker could be blocked, the
drawbar could be outside the allowed
range of 4–19 in (10–48 cm) or you
could need to move to a different area
to change the lighting and background.
Verify the sticker is in the proper
location. See
Applying the Trailer
Reverse Aid Sticker (page 359). You
can move to a different area or change
the direction you are driving or setup
the system at a different time of day.
Some trailers are not compatible with
the sticker and camera system.
What does it mean if the system pauses
during calibration? There could be steering input or trailer
movement during the straight drive
portion of the calibration process.
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(If Equipped)

OFF-ROAD DRIVING
WHAT IS OFF-ROAD DRIVING
Off-road driving is driving your vehicle on
unsurfaced roads or trails, made from dirt,
rocks, sand and mud.
BASIC OFF-ROAD DRIVING
TECHNIQUES
Off-road Driving Hints
Before taking your vehicle off-roading, a
basic vehicle inspection should be done to
make sure that the vehicle is in top working
condition. It is always recommended that
at least two vehicles are used while
off-roading. The buddy system helps make
sure that help is close at hand should a
vehicle become stuck or damaged. It is also
wise to take supplies such as a first aid kit,
supply of water, tow strap, cell or satellite
phone with you any time an off-road
excursion is planned.
1. Grip the steering wheel with thumbs
on the outside of the rim. This will
reduce the risk of injury due to abrupt
steering wheel motions that occur
when negotiating rough terrain.
2. Throttle, brake and steering inputs should be made in a smooth and
controlled manner. Sudden inputs to
the controls can cause loss of traction
or upset the vehicle, especially while
on loose terrain or while crossing
obstacles such as rocks or logs.
3. Look ahead on your route noting upcoming obstacles, or any other
factors which may indicate a change
in available traction, and adjust the
vehicle speed and route accordingly. 4. When driving off-road, if the front or
rear suspension is bottoming out
and/or excessive contact with the
skid-plates is encountered, reduce
vehicle speed to avoid potential
damage to the vehicle.
5. When with other vehicles, it is recommended that communication is
used, and the lead vehicle notify other
vehicles of obstacles that could cause
potential vehicle damage.
6. Always keep available ground clearance in mind and pick a route that
minimizes the risk of catching the
underside of the vehicle on an obstacle.
7. When negotiating low speed obstacles,
applying light brake pressure in
conjunction with the throttle will help
prevent the vehicle from jerking and
will allow you to negotiate the obstacle
in a more controlled manner. Using 4L
will also help with this.
8. Off-roading requires a high degree of concentration. Even if your local law
does not prohibit alcohol use while
driving off-road, Ford strongly
recommends against drinking if you
plan to off-road.
Crossing Obstacles
• Review the path ahead before
attempting to cross any obstacle. It is
best if the obstacle is reviewed from
outside the vehicle so that there is a
good understanding of terrain condition
both in front of and behind the
obstacle.
• Approach obstacles slowly.
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2022 Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202103, First-Printing Driving Hints