steering FORD EXPEDITION 2021 Workshop Manual

Extreme continuous steering may increase
the effort required for you to steer your
vehicle, this increased effort prevents
overheating and permanent damage to
the steering system. You do not lose the
ability to steer your vehicle manually.
Typical steering and driving maneuvers
allow the system to cool and return to
normal operation.
Steering Tips
If the steering wanders or pulls, check for:
•
Correct tire pressures.
• 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.
Adaptive Learning (If Equipped)
The electronic power steering system
adaptive learning helps correct road
irregularities and improves overall handling
and steering feel. It communicates with
the brake system to help operate
advanced stability control and accident
avoidance systems. Additionally, whenever
the battery is disconnected or a new
battery installed, you must drive your
vehicle a short distance before the system
relearns the strategy and reactivates all
systems. PRE-COLLISION ASSIST 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 does not
detect vehicles that are driving in a
different direction, pedestrians at night,
cyclists or animals. Apply the brakes
when necessary. Failure to follow this
instruction could result in the loss of
control of your vehicle, personal injury or
death. WARNING:
The system does not
operate during hard acceleration or
steering. Failure to take care may lead
to a crash or personal injury. WARNING: The system may fail or
operate with reduced function during
cold and severe weather conditions.
Snow, ice, rain, spray and fog can
adversely affect the system. Keep the
front camera and radar free of snow and
ice. Failure to take care may result in the
loss of control of your vehicle, serious
personal injury or death. WARNING:
Some situations and
objects prevent hazard detection. For
example low or direct sunlight, inclement
weather, unconventional vehicle types,
and pedestrians. Apply the brakes when
necessary. Failure to follow this
instruction could result in the loss of
control of your vehicle, personal injury or
death.
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Radar Troubleshooting (If Equipped)
Action
Cause
Clean the grille surface in front of the radaror remove the object causing the obstruc- tion.
The surface of the radar in the grille is dirty
or obstructed in some way.
Wait a short time. It may take several
minutes for the radar to detect that there is no obstruction.
The surface of the radar in the grille is clean
but the message remains in the display screen.
The pre-collision assist system is tempor-
arily disabled. Pre-collision assist automat- ically reactivates a short time after the weather conditions improve.
Heavy rain, spray, snow or fog is interfering
with the radar signals.
The pre-collision assist system is tempor-
arily disabled. Pre-collision assist automat- ically reactivates a short time after the weather conditions improve.
Swirling water or snow or ice on the surface
of the road may interfere with the radar signals.
Contact an authorized dealer to have theradar checked for proper coverage and operation.
Radar is out of alignment due to a front-
end impact.
Note: Proper system operation requires a
clear view of the road by the camera. Have
any windshield damage in the area of the
camera's field of view repaired.
Note: If something hits the front end of your
vehicle or damage occurs, the radar sensing
zone may change. This could cause missed
or false vehicle detections. Contact an
authorized dealer to have the radar checked
for proper coverage and operation.
Note: If your vehicle detects excessive heat
at the camera or a potential misalignment
condition, a message could display in the
information display indicating temporary
sensor unavailability. This message
deactivates automatically when operational
conditions are correct. For example, when
the ambient temperature around the sensor
decreases or the sensor automatically
recalibrates successfully. DRIVE CONTROL
Selectable Drive Modes
The system delivers a driving experience
through a suite of sophisticated electronic
vehicle systems. These systems optimize
steering, handling and powertrain
response. This provides a single location
to control multiple systems performance
settings.
Changing the drive mode automatically
changes the functionality of the following
systems:
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•
Electronically power-assisted steering
system adjusts steering effort and feel
based on the mode you select. See
Steering (page 266).
• Electronic stability control and traction
control maintain your vehicle control
in adverse conditions or high
performance driving. See
Stability
Control (page 224).
• Electronic throttle control enhances
the powertrain response to your inputs.
• Driveline settings optimize with shift
schedules tuned to each drive mode.
Using the System
The system automatically tailors your
vehicle configuration for each mode you
select.
The drive mode switch is in one of three
places, depending on your vehicle
configuration:
On the column shifter On the center console
On the
DRIVE MODE rotary switch.
Note:
Mode changes are not available when
the vehicle ignition is off or when the engine
is not running.
On-Road Modes Normal
- For everyday driving.
This mode is a perfect balance
of excitement, comfort and
convenience.
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Sport - For aggressive on-road
driving. This mode increases
throttle response, provides a
sportier steering feel, along with quicker
shifting. The suspension stiffens, with an
emphasis on handling and control. The
transmission also holds gears longer,
helping your vehicle accelerate faster when
shifting gears. Tow/Haul
- 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 grade. The amount of
downshift braking provided varies based
on the amount you press the brake pedal.
Note: All transmission gear ranges are
available when using
Tow/Haul. ECO
- For efficient and
responsible driving. This mode
helps deliver maximum fuel
efficiency and increases driving range.
Off-Road Modes Snow/Wet
(4X2) or Grass/
Gravel/Snow (4WD) - For firm
surfaces covered with loose or
slippery material such as packed
snow, ice, water, grass or a thin
layer of gravel or sand. Sand
- For soft dry sand or deep
gravel. Mud/Ruts
- For muddy, rutted,
soft or uneven terrain.
Note: The system has diagnostic checks
that continuously monitor the system for
proper operation. Certain drive modes are
not available based on gear shifter position.
If a mode is unavailable due to a system
fault, the mode defaults to
Normal.
Transfer Case Availability
If Equipped with Rotary Drive Mode Switch Sand
Mud/Ruts
Tow/
Haul
Grass/
Gravel/ Snow
ECO
Sport
Normal
Not Avail-able
Not Avail-
able
Available
Not Avail-
able
Default
Available
Default
2H
Default
Off Road Tuning
Default
Off Road Tuning
Available
Default
Slippery Tuning
Available
NormalTuning
Default
Sport
Tuning
Avail-
able
Normal Tuning
4A
Available
Available
Available
Available
Not Avail-
able
Not Avail-
able
Avail-
able
4L 1
1 If Equipped.
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RV & Trailer Towing Guide Online
http://www.fleet.ford.com/towing-guides/
Website
TRAILER REVERSING AIDS (IF
EQUIPPED)
Pro Trailer Backup Assist™ WARNING: Driving while distracted
can result in loss of vehicle control, crash
and injury. We strongly recommend that
you use extreme caution when using any
device that may take your focus off the
road. Your primary responsibility is the
safe operation of your vehicle. We
recommend against the use of any
hand-held device while driving and
encourage the use of voice-operated
systems when possible. Make sure you
are aware of all applicable local laws
that may affect the use of electronic
devices while driving. WARNING:
This system is an extra
driving aid. It does not replace your
attention and judgment, or the need to
apply the brakes. This system does NOT
automatically brake your vehicle. If you
fail to press the brake pedal when
necessary, you may collide with another
vehicle.
Note: The system is not a substitute for
safe driving practices.
Note: You must always be aware of the
vehicle and trailer combination and the
surrounding environment.
Note: The system does not detect or
prevent the vehicle or trailer from making
contact with obstacles in the surrounding
environment. Note:
Keep in mind that the front end of
the vehicle swings out when changing the
direction of the trailer.
Note: The system relies on user
measurements to determine sticker
placement and system limits. It is critical to
take the key measurements correctly.
Incorrect measurements can result in the
improper function of the system up to and
including contact between the vehicle and
trailer.
Note: The system limits vehicle speed when
backing up. The system is not a replacement
for proper use of the throttle and brake
pedals.
Principle of Operation
This feature helps you to steer your vehicle
when backing up with a trailer attached.
Turn and hold the control knob in the
direction you want the trailer to go and the
system takes over the steering. This allows
you to focus on checking the mirrors and
operating the brake and accelerator.
Each trailer you use with your vehicle has
to be setup once.
You must take care to follow the setup
process accurately, to make sure the
sticker is placed correctly.
Contact your dealership if you need
assistance in setting up your trailer.
Setting Up Pro Trailer Backup
Assist
Note: Once you have entered a trailer's
information into the system, it is stored for
easy recall. A maximum of 10 trailers can be
added to the system.
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Step 1: Position your Vehicle and Trailer
Hitch your conventional trailer to your
vehicle. See Essential Towing Checks
(page 299).
Park your vehicle and hitched trailer on a
level surface.
For best results, make sure that your trailer
rides level with the ground when you hitch
it to your vehicle. More information on
selecting your towbar is available in the
Towing section.
See Towing (page 285). Make sure your vehicle and the trailer are
in line with each other. You can do this by
driving straight forward.
Step 2: Follow the Information Display
Prompts
Press the button to turn the system on. 1.
Select the option to add a trailer in the
instrument cluster menu, using the
steering wheel control. See
General
Information (page 119).
2. Add a personalized name for the trailer
using the screen prompts. Use the
down arrow to scroll to the desired
letter and then press the right arrow to
advance to the next letter. Press OK to
continue.
3. Select the type of trailer brake system for the trailer you are adding.
4. Select the brake effort level for the trailer.
Note: The default option is low. This is
recommended for most trailers. If the
trailer's brakes require more initial voltage,
or if you prefer more aggressive braking then
select the other options as required.
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Note:
Use consistent metric or imperial
units as required by your country or vehicle.
Record the four key distances (A, B, C, D)
as required by the measurement card.
Record the trailer name for these
measurements. Distance A
The horizontal distance from the bumper
to the center of the ball hitch on the trailer.
Distance B
The horizontal distance from the center of
the ball hitch to the center of the sticker.
Distance C
The distance from the rear view camera to
the center of the sticker.
Distance D
The horizontal distance from the bumper
to the center of the trailer axle (single axle
trailers), or the center of the axles (trailers
with dual axles or more). Note:
If the distance ends in anything less
than one half of an inch, round down to the
current whole inch. If a distance ends in one
half or greater of an inch, round up to the
next whole inch. For example, 12.3 in
(31.12 cm) would be rounded down to 12 in
(30.48 cm). 12.5 in (31.75 cm) would be
rounded up to 13 in (33 cm).
Step 5: Enter Measurements Using the
Information Display
Using the recorded measurements, enter
the required data into the system. Follow
the on screen prompts to enter each of the
measurements taken in step 4. When all
four distances have been entered, a
confirmation display appears. Check the
values are correct before proceeding, or go
back to change any if required.
Step 6: Confirming the Sticker Location
Check the rear view camera display to see
if the sticker is identified by the system and
marked with a red circle.
Confirm that the red circle is correctly
located over the sticker image in the
display. The on screen prompt asks you to
confirm this.
Note: If the system cannot locate the
sticker try cleaning the camera lens, and
also make sure the sticker is within the green
zone as indicated in step 3.
Calibrating the System
To complete setup, drive your vehicle
straight forward between 4 mph (6 km/h)
and
24 mph (39 km/h) following the on
screen prompt.
Note: Check your measurements to make
sure you measured from the correct points.
Note: If you move the steering wheel during
this procedure, the calibration pauses.
Note: We recommend that you do not do
this at night.
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A message displays during calibration and
after calibration is complete.
Using Pro Trailer Backup Assist
To use the system press the button and
select the required trailer from the display.
When the sticker is located, the display
prompts you to shift into reverse (R). The
system turns on.
Note:
The system does not function if your
hands are on the steering wheel. Remove
your hands to resume operation.
Follow the screen prompts to steer your
vehicle and trailer.
Note: You may have to drive forward to
straighten the trailer. Take your hands off the steering wheel and
turn the Pro Trailer Backup Assist control
knob instead. The knob acts as the steering
control for the trailer.
Note:
The more you turn the knob, the
sharper the trailer turns. Turn and hold counterclockwise to make
the trailer go left.
Turn and hold clockwise to make the trailer
go right.
Note:
Practice maneuvering with the
system in a safe open area first.
Note: Try backing up in a straight line and
then turning the knob slowly in the direction
you want to go.
Note: Quickly turning and releasing the
knob results in a jerky movement of the
vehicle.
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Measurement B has reached maximum or
minimum value:
•
Make sure that the sticker placement
instruction in step 3 of the setup has
been followed. Stickers placed outside
the allowed zone adversely affect the
system performance and could cause
improper feature function.
• Make sure that the measurement being
made is the horizontal distance only
from center of sticker to the hitch ball
center. A straight line distance that
includes any vertical rise or drop
increases the measurement and
causes an inaccurate value to be
entered into the system. See step 4 of
the setup for additional measurement
instructions.
Measurement C has reached maximum or
minimum value:
• Make sure that the sticker placement
instructions in step 3 of the setup have
been followed. Stickers placed outside
the allowed zone adversely affect the
system performance and could cause
improper feature function. If you have
met all the criteria for sticker
placement and you see this message
this sticker is either too far below or too
close to the camera to properly
recognize the sticker. In order for the
system to operate correctly the sticker
height must be lowered if you receive
the minimum warning or the sticker
height must be raised if you receive the
maximum warning.
• Only one sticker can be placed on the
trailer for correct system function. The
previous sticker must be removed or
covered so only one sticker is visible to
the camera.
• Measurement B and C must be
measured again if a new sticker is
placed on the trailer. Measurement D has reached maximum or
minimum value:
•
Make sure that the measurement being
made is the horizontal distance only
from the bumper to the center of the
single axle or the center of all the axles
on the trailer. See step 4 of the setup
for additional measurement
instructions. The TBA system does not
support trailer lengths outside the
range allowed by the information
display.
System is circling something beside the
sticker or system cannot find the sticker:
• Make sure the rear camera is clean and
the sticker is clearly visible in the
camera image. Clean the camera and
sticker if necessary.
• The camera system uses the entered
measurements to help locate the
sticker. Inaccurate sticker
measurements degrade the system ’s
ability to locate the sticker. Verify the
measurements entered into the system
are accurate.
• Remove the incorrectly circled label or
decal if possible.
• If you cannot resolve the issue a new
sticker location should be tried. The
sticker location must still meet the
requirements noted in step 3 of the
setup instructions. Only one sticker can
be placed on the trailer for correct
system function. The previous sticker
must be removed or covered so only
one sticker is visible to the camera.
Calibration
The system monitors various vehicle
parameters to ensure your vehicle is being
driven straight and the trailer straight
behind your vehicle. Any steering input or
trailer movement pauses the calibration.
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sticker is placed correctly based on
steps 3 and the measurements were
made correctly according to Step 4.
The troubleshooting guide for trailer
measurements can also be reviewed
for help in making measurements.
• To change sticker location or change
trailer measurements, go into the
Towing menu, select trailer options,
select change trailer setting and then
select the change sticker option.
• If the sticker location needs to be
changed, the previous sticker must be
removed and a new sticker needs to
be placed on the trailer. ONLY ONE
STICKER SHOULD BE PLACED ON
THE TRAILER FOR PROPER
SYSTEM FUNCTION.
• Disregard the prompt to remove this
sticker and continue to the next step if
you only plan to update the
measurements for the current sticker
location.
System consistently shows Stop now take
control of steering warning:
• The system displays this warning when
it can no longer steer the vehicle and
you must take over steering. There are
four reasons why this warning displays
and additional information regarding
the reason for the warning is available
on the center display.
• The steering wheel is touched while
the system is controlling it. Avoid
touching the wheel during system
operation.
• The maximum speed for feature
operation is exceeded. System
performance is optimized at slower
speeds. Backup slowly. •
The sticker was lost by the camera
system. Once your vehicle is stopped
additional warnings indicate the sticker
was lost. Refer to sticker lost trouble
shooting tips.
• An internal condition for system
operation was not met which requires
your vehicle return to manual control
of the steering.
Note: The system is designed to be used
with the same trailer connection every time
the trailer is chosen from the selection
menu. Using a different drawbar or a
different pin hole (on drawbars with more
than one) when connecting the drawbar to
your vehicle affects the trailer
measurements. Take the measurements
again and update if required.
TRAILER SWAY CONTROL WARNING: Turning off trailer sway
control increases the risk of loss of
vehicle control, serious injury or death.
Ford does not recommend disabling this
feature except in situations where speed
reduction may be detrimental (such as
hill climbing), the driver has significant
trailer towing experience, and can control
trailer sway and maintain safe operation.
Note: This feature does not prevent trailer
sway, but reduces it once it begins.
Note: This feature cannot stop all trailers
from swaying.
Note: In some cases, if vehicle speed is too
high, the system may activate multiple
times, gradually reducing vehicle speed.
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