2021 FORD F-550 steering wheel

For 4WD vehicles
Pull the 4WD control knob toward you.
For 2WD vehicles
Turn the control to ON.
Once the indicator light
illuminates in the information
display, both rear wheel axle
shafts will be locked together providing
added traction.
If the indicator does not come on, or the
indicator turns off while driving, one of the
following has occurred:
• The vehicle speed is too high.
• The left and right rear wheel speed
difference is too high during an
engagement attempt. •
The system has malfunctioned and is
accompanied by a message in the
information display. See your
authorized Ford dealer for assistance.
• The vehicle is experiencing an anti-lock
brake activation.
Operating ELD With a Spare or
Mismatched Tires
On vehicles with an ELD, 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 ELD functionality. If the electronic
locking differential has difficulty
disengaging, release the accelerator pedal
and turn the steering wheel in the opposite
direction when rolling. We recommend
engaging and disengaging the ELD at a
stop when you mount a spare on the rear
axle.
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GENERAL INFORMATION
Note:
Occasional brake noise is normal. If
a metal-to-metal, continuous grinding or
continuous squeal sound is present, the
brake linings may be worn-out. Have the
system checked by an authorized dealer. If
your vehicle has continuous vibration or
shudder in the steering wheel while braking,
have it checked by an authorized dealer.
Note: Brake dust may accumulate on the
wheels, even under normal driving
conditions. Some dust is inevitable as the
brakes wear and does not contribute to
brake noise.
Wet brakes result in reduced braking
efficiency. Gently press the brake pedal a
few times when driving from a car wash or
standing water to dry the brakes.
Brake Over Accelerator
In the event the accelerator pedal
becomes stuck or entrapped, apply steady
and firm pressure to the brake pedal to
slow the vehicle and reduce engine power.
If you experience this condition, apply the
brakes and bring your vehicle to a safe
stop. Shift the transmission to park (P),
switch the engine off and apply the parking
brake. Inspect the accelerator pedal for
any interference. If none are found and the
condition persists, have your vehicle towed
to the nearest authorized dealer.
Brake Assist
Brake assist detects when you brake
rapidly by measuring the rate at which you
press the brake pedal. It provides
maximum braking efficiency as long as you
press the pedal, and can reduce stopping
distances in critical situations. Anti-lock Brake System
This system helps you maintain steering
control during emergency stops by keeping
the brakes from locking. This lamp momentarily
illuminates when you switch the
ignition on. If the light does not
illuminate during start up, remains on or
flashes, the system may be disabled. Have
the system checked by an authorized
dealer. If the anti-lock brake system is
disabled, normal braking is still effective.
See Warning Lamps and Indicators
(page 105).
Note: Indicators vary depending on region. If the lamp remains illuminated
after you release the parking
brake, have the system checked
by an authorized dealer.
It also illuminates momentarily
when you switch the ignition on
to confirm the lamp is functional. If it does
not illuminate when you switch the ignition
on, or begins to flash at any time, have the
system checked by an authorized dealer.
Diesel Engine Exhaust Braking
(If
Equipped) WARNING:
Do not use tow/haul
when the road surface is slippery. Failure
to follow this instruction could result in
the loss of control of your vehicle. WARNING:
Do not use diesel
engine exhaust braking when the road
surface is slippery. Failure to follow this
instruction could result in the loss of
control of your vehicle.
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PRINCIPLE OF OPERATION
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 loudspeakers may
interfere with and adversely affect the
electronic stability control system. Install
any aftermarket stereo loudspeaker as
far as possible from the front center
console, the tunnel, and the front seats
in order to minimize the risk of interfering
with the electronic stability control
sensors. 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. If your
electronic stability control system
activates, SLOW DOWN.
The system automatically turns on each
time you switch the ignition on. If a fault occurs in either the stability
control or the traction control system, you
may experience the following conditions:
•
The stability and traction control light
illuminates steadily.
• The stability control and traction
control systems do not enhance your
vehicle's ability to maintain traction of
the wheels.
• The Adaptive Steering system (if
equipped) automatically changes the
steering function to a fixed steering
ratio. See
Adjusting the Steering
Wheel (page 81).
If a driving condition activates either the
stability control or the traction control
system you may experience the following
conditions:
• The stability and traction control light
flashes.
• Your vehicle slows down.
• Reduced engine power.
• A vibration in the brake pedal.
• The brake pedal is stiffer than usual.
• If the driving condition is severe and
your foot is not on the brake, the brake
pedal may move as the system applies
higher brake force.
The stability control system has several
features built into it to help you maintain
control of your vehicle:
Electronic Stability Control
The system 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.
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WHAT IS TRAIL CONTROL
WARNING: The system does not
control speed in low traction conditions
or extremely steep slopes. 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
personal injury. WARNING:
The system does not
replace the parking brake. When you
leave your vehicle, always apply the
parking brake and shift the transmission
into park (P) for automatic transmission
or first gear for manual transmission.
Trail control lets you focus on steering
during low-speed and off-road use by
controlling your vehicle's acceleration and
braking.
You can use trail control under the
following speeds:
• 20 mph (31 km/h)
in two-wheel or
four-wheel drive high range.
• 10 mph (15 km/h)
in four-wheel drive
low range.
• 5 mph (8 km/h)
in reverse (R).
You may hear a noise from the anti-lock
brake system pump motor when you use
the system. This is normal.
SWITCHING TRAIL CONTROL
ON AND OFF Press the button.
The system switches off if you press the
button again or exceed 42 mph (68 km/h). SETTING THE TRAIL CONTROL
SPEED
Note:
The buttons are located on the
steering wheel.
Drive to your preferred speed. Press button to increase the set
current speed.
Press button to decrease the set
current speed.
Note: The indicator changes color.
You can adjust the set speed in small or
large increments. Press the toggle button
upward or downward once to adjust the
set speed in small increments. Press and
hold the toggle button upward or
downward to adjust the set speed in large
increments.
You can also adjust the set speed by
braking.
Note: Pressing the brake pedal does not
switch off the system.
CANCELING THE SET SPEED Press the button.
TRAIL CONTROL INDICATORS 231
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Active guidelines
A
Centerline
B
Fixed guideline: Green zone
C
Fixed guideline: Yellow zone
D
Fixed guideline: Red zone
E
Rear bumper
F
To use active guidelines, turn the steering
wheel to point the guidelines toward an
intended path. If the steering wheel
position is changed while reversing, the
vehicle might deviate from the original
intended path.
The active guidelines fade in and out
depending on the steering wheel position.
The active guidelines are not shown when
the steering wheel position is straight. Always use caution while reversing.
Objects in the red zone are closest to your
vehicle and objects in the green zone are
farther away. Objects are getting closer to
your vehicle as they move from the green
zone to the yellow or red zones. Use the
side view mirrors and rear view mirror to
get better coverage on both sides and rear
of your vehicle.
Obstacle Distance Indicator
The system will provide an image of your
vehicle and the sensor zones. The zones
will highlight green, yellow and red when
the parking aid sensors detect an object in
the coverage area.
Rear Camera Delay
Selectable settings for this feature are ON
and OFF.
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WHAT IS CRUISE CONTROL
Cruise control lets you maintain a set
speed without keeping your foot on the
accelerator pedal.
Requirements
Use cruise control when the vehicle speed
is greater than 20 mph (30 km/h).
SWITCHING CRUISE CONTROL
ON AND OFF WARNING:
Do not use cruise
control on winding roads, in heavy traffic
or when the road surface is slippery. This
could result in loss of vehicle control,
serious injury or death.
The cruise controls are on the steering
wheel. See
Switching Cruise Control
On and Off (page 242).
Switching Cruise Control On Press the button.
Switching Cruise Control Off Press the button when the
system is in standby mode.
The system also turns off when you switch
the ignition off.
Note: The set speed erases when you
switch the system off. SETTING THE CRUISE
CONTROL SPEED WARNING:
When you are going
downhill, your vehicle speed could
increase above the set speed. The
system does not apply the brakes.
Drive to the speed you prefer. Press either button to set the
current speed.
Take your foot off the accelerator pedal.
Note: The indicator changes color in the
information display.
Changing the Set Speed Press and release the button to
increase the set speed in small
increments.
Press and hold the button to accelerate.
Release the button when you reach your
preferred speed. Press and release the button to
decrease the set speed in small
increments.
Press and hold the button to decelerate.
Release the button when you reach your
preferred speed.
Note: If you accelerate by pressing the
accelerator pedal, the set speed does not
change. When you release the accelerator
pedal, your vehicle returns to the speed that
you previously set.
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The system uses a radar sensor that
projects a beam directly in front of your
vehicle.
The adaptive cruise controls are on the
steering wheel.
Switching Adaptive Cruise Control
On
Press and release the button.
The indicator, current gap setting
and set speed appear in the
information display.
Setting the Adaptive Cruise Speed
Drive to your preferred speed. Press and release either button.
Take your foot off the accelerator pedal.
The indicator, current gap setting and set
speed appear in the information display.
A vehicle graphic illuminates if there is a
vehicle detected in front of you.
Note:
When adaptive cruise control is
active, the speedometer may vary slightly
from the set speed displayed in the
information display.
Following a Vehicle WARNING: When following a
vehicle that is braking, your vehicle does
not always decelerate quickly enough to
avoid a crash without driver intervention.
Apply the brakes when necessary. Failure
to follow this instruction could result in
personal injury or death.
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The warning system is in two stages. At
first the system issues a temporary warning
that you need to take a rest. This message
only appears for a short time. If the system
detects further reduction in driving
alertness, another warning could be issued
which remains in the information display
for a longer time. Press OK on the steering
wheel control to clear the warning. When
active the system runs in the background
and only issues a warning if required.
Resetting the System
You can reset the system by either:
•
Switching the ignition off and on.
• Stopping the vehicle and then opening
and closing the driver door.
LANE KEEPING SYSTEM (IF
EQUIPPED) 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:
Always drive with due
care and attention when using and
operating the controls and features on
your vehicle. 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:
The sensor may
incorrectly track lane markings as other
structures or objects. This can result in
a false or missed warning. WARNING:
Large contrasts in
outside lighting can 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.
Note: The system works as long as the
camera can detect one lane marking at a
speed above
40 mph (64 km/h).
Note: The system may not function with a
blocked camera, or if the windshield is
damaged or dirty. 251
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