Ford E-350 (2023 year). Manual in english

Why is the feature not available (line markings are gray) when I can see the lane markings

on the road?

There is standing water on the road.

Faint lane markings, for example partial yellow lane markings on concrete roads.

Lane width is too narrow or too wide.

The camera has not been calibrated after a windshield replacement.

Driving on tight roads or on uneven roads.

Vehicle accessories are blocking the camera, for example a snow plow.

STEERING

Hydraulic Power Steering

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.

119

Driving Aids

Note:

A high crown in the road or high

crosswinds may also make the steering
seem to wander or pull.

PRE-COLLISION ASSIST

(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:

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.

WARNING:

Take additional care if

your vehicle is heavily loaded or you are
towing a trailer. These conditions could
result in reduced performance of this
system. Failure to follow this instruction
could result in the loss of control of your
vehicle, personal injury or death.

WARNING:

The system cannot

help prevent all crashes. Do not rely on
this system to replace driver judgment
and the need to maintain a safe distance
and speed.

Using the Pre-Collision Assist
System

The pre-collision assist system is active at
speeds above approximately 3 mph
(5 km/h)

Note:

The system is not designed to detect

animals.

Note:

The system is not designed to detect

vehicles or cyclists that are traveling in a
different direction.

E156130

If your vehicle is rapidly approaching
another stationary vehicle or a vehicle
traveling in the same direction as yours,
the system provides three levels of
functionality:

120

Driving Aids

•

Alert.

•

Brake support.

•

Active braking.

E255268

Alert

: When active, a flashing visual

warning appears and an audible warning
tone sounds.

Brake support

: The system is designed

to help reduce the impact speed by
preparing the brakes for rapid braking. The
system does not automatically apply the
brakes. If you press the brake pedal, the
system could apply additional braking up
to maximum braking force, even if you
lightly press the brake pedal.

Active braking

: Active braking may

activate if the system determines that a
collision is imminent. The system may help
the driver reduce impact damage or avoid
the crash completely.

Note:

If you perceive pre-collision assist

alerts as being too frequent or disturbing,
then you can reduce the alert sensitivity,
though the manufacturer recommends
using the highest sensitivity setting where
possible. Setting lower sensitivity would
lead to fewer and later system warnings.

Distance Indication and Alert

Distance indication and alert is a function
that provides the driver with a graphical
indication of the time gap to other
preceding vehicles traveling in the same
direction. The distance indication and alert
screen in the display screen shows one of
the graphics that follow.

E254791

If the time gap to a preceding vehicle is
small, a red visual indication displays.

Note:

Distance indication and alert

deactivates and the graphics do not display
when adaptive cruise control is active.

121

Driving Aids

Adjusting the Pre-Collision Assist
Settings

You can adjust the following settings by
using the information display controls. See

General Information

(page 65).

•

You can change alert and distance
alert sensitivity to one of three possible
settings.

•

You can switch distance indication and
alert on or off.

•

If required, you can switch active
braking on or off.

•

If required, you can switch the entire
pre-collision assist feature on or off.

Note:

Active braking automatically turns

on every time you switch the ignition on.

Note:

We recommend that you switch the

system off if you install a snowplow or
similar object in such a way that it may
block the radar sensor. Your vehicle
remembers the selected setting across key
cycles.

Blocked Sensors

E310549

Camera.

Radar sensor.

If a message regarding a blocked sensor
or camera appears in the information
display, the radar signals or camera images
are obstructed. With a blocked sensor or
camera, the pre-collision assist system
may not function, or performance may
reduce. The following table lists possible
causes and actions for when this message
displays.

Camera Troubleshooting

Action

Cause

Clean the outside of the windshield in front

of the camera.

The windshield in front of the camera is

dirty or obstructed in some way.

Wait a short time. It may take several

minutes for the camera to detect that there

is no obstruction.

The windshield in front of the camera is

clean but the message remains in the

display screen.

122

Driving Aids

Radar Troubleshooting

Action

Cause

Clean the grille surface in front of the radar

or 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 the

radar 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 and your vehicle
has a radar sensor, 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 may display in the
information display indicating temporary
sensor unavailability. When operational
conditions are correct, the message
deactivates. For example, when the ambient
temperature around the sensor decreases
or the sensor automatically recalibrates
successfully.

123

Driving Aids

LOAD LIMIT

Vehicle Loading - with and
without a Trailer

This section guides you in the
proper loading of your vehicle,
trailer, or both. Keep your loaded
vehicle weight within its design
rating capability, with or without
a trailer. Properly loading your
vehicle provides maximum return
of vehicle design performance.
Before you load your vehicle,
become familiar with the
following terms for determining
your vehicle’s weight rating, with
or without a trailer, from the
vehicle’s Tire and Loading
Information label or Safety
Compliance Certification label.

Tire and Loading Label Information
Example:

E198719

Payload

Payload is the combined weight
of cargo and passengers that your
vehicle is carrying. The maximum
payload for your vehicle appears
on the Tire and Loading label. The
label is either on the B-pillar or the
edge of the driver door. Vehicles
exported outside the US and
Canada may not have a tire and
loading label. Look for “The
combined weight of occupants
and cargo should never exceed
XXX kg OR XXX lb” for maximum
payload. The payload listed on the
Tire and Loading Information label

124

Load Carrying

is the maximum payload for your
vehicle as built by the assembly
plant. If you install any additional
equipment on your vehicle, you
must determine the new payload.
Subtract the weight of the
equipment from the payload listed
on the Tire and Loading label.
When towing, trailer tongue
weight or king pin weight is also
part of payload.

WARNING:

The

appropriate loading capacity of
your vehicle can be limited either
by volume capacity (how much
space is available) or by payload
capacity (how much weight the
vehicle should carry). Once you
have reached the maximum
payload of your vehicle, do not
add more cargo, even if there is
space available. Overloading or
improperly loading your vehicle
can contribute to loss of vehicle
control and vehicle rollover.

GAWR (Gross Axle Weight
Rating)

GAWR is the maximum allowable
weight that a single axle (front or
rear) can carry. These numbers
are on the Safety Compliance
Certification label. The label is
located on the door hinge pillar,
door-latch post, or the door edge
that meets the door-latch post,
next to the driver seating position.

The total load on each axle must
never exceed its Gross Axle
Weight Rating.

GVWR (Gross Vehicle Weight
Rating)

GVWR is the maximum allowable
weight of the fully loaded vehicle.
This includes all options,
equipment, passengers and cargo.
It appears on the Safety
Compliance Certification label.
The label is located on the door
hinge pillar, door-latch post, or the
door edge that meets the
door-latch post, next to the driver
seating position.

The gross vehicle weight must
never exceed the Gross Vehicle
Weight Rating.

Safety Compliance Certification Label
Example:

E198828

125

Load Carrying

WARNING:

Exceeding the

Safety Compliance Certification
label vehicle weight limits can
adversely affect the
performance and handling of
your vehicle, cause vehicle
damage and can result in the
loss of control of your vehicle,
serious personal injury or death.

Maximum Loaded Trailer
Weight

Maximum loaded trailer weight is
the highest possible weight of a
fully loaded trailer the vehicle can
tow. Consult an authorized dealer
(or the RV and Trailer Towing
Guide available at an authorized
dealer) for more detailed
information.

GCWR (Gross Combined
Weight Rating)

GCWR is the maximum allowable
weight of the vehicle and the

loaded trailer, including all cargo
and passengers, that the vehicle
can handle without risking
damage. (Important: The towing
vehicle’s braking system is rated
for operation at Gross Vehicle
Weight Rating, not at Gross
Combined Weight Rating.)
Separate functional brakes should

be used for safe control of towed
vehicles and for trailers where the
Gross Combined Weight of the
towing vehicle plus the trailer
exceed the Gross Vehicle Weight
Rating of the towing vehicle.

The gross combined weight must
never exceed the Gross Combined
Weight Rating.

Note:

For trailer towing

information refer to the RV and
Trailer Towing Guide available at
an authorized dealer.

WARNING:

Do not exceed

the GVWR or the GAWR
specified on the certification
label.

WARNING:

Do not use

replacement tires with lower
load carrying capacities than the
original tires because they may
lower your vehicle's GVWR and
GAWR limitations. Replacement
tires with a higher limit than the
original tires do not increase the
GVWR and GAWR limitations.

WARNING:

Exceeding any

vehicle weight rating can
adversely affect the
performance and handling of
your vehicle, cause vehicle
damage and can result in the
loss of control of your vehicle,
serious personal injury or death.

126

Load Carrying

Steps for determining the
correct load limit:

1. Locate the statement "The

combined weight of occupants
and cargo should never exceed
XXX kg or XXX lb." on your
vehicle’s placard.

2. Determine the combined

weight of the driver and
passengers that will be riding
in your vehicle.

3. Subtract the combined weight

of the driver and passengers
from XXX kg or XXX lb.

4. The resulting figure equals the

available amount of cargo and
luggage load capacity. For
example, if the “XXX” amount
equals 1,400 lb. and there will

be five 150 lb. passengers in
your vehicle, the amount of
available cargo and luggage
load capacity is 650 lb.
(1400-750 (5 x 150) = 650 lb.)

5. Determine the combined

weight of luggage and cargo
being loaded on the vehicle.
That weight may not safely
exceed the available cargo and
luggage load capacity
calculated in Step 4.

6. If your vehicle will be towing a

trailer, load from your trailer
will be transferred to your
vehicle. Consult this manual to
determine how this reduces the
available cargo and luggage
load capacity of your vehicle.

Helpful examples for calculating
the available amount of cargo
and luggage load capacity

Suppose your vehicle has a
1400-pound (635-kilogram) cargo
and luggage capacity. You decide
to go golfing. Is there enough load
capacity to carry you, four of your
friends and all the golf bags? You
and four friends average 220
pounds (99 kilograms) each and
the golf bags weigh approximately
30 pounds (13.5 kilograms) each.
The calculation would be: 1400 -
(5 x 220) - (5 x 30) = 1400 - 1100
- 150 = 150 pounds. Yes, you have
enough load capacity in your
vehicle to transport four friends
and your golf bags. In metric units,
the calculation would be: 635

kilograms - (5 x 99 kilograms) -
(5 x 13.5 kilograms) = 635 - 495 -
67.5 = 72.5 kilograms.

Suppose your vehicle has a
1400-pound (635-kilogram) cargo
and luggage capacity. You and
one of your friends decide to pick
up cement from the local home
improvement store to finish that
patio you have been planning for
the past two years. Measuring the
inside of the vehicle with the rear
seat folded down, you have room
for twelve 100-pound
(45-kilogram) bags of cement. Do
you have enough load capacity to
transport the cement to your
home? If you and your friend each
weigh 220 pounds (99 kilograms),
the calculation would be: 1400 -
(2 x 220) - (12 x 100) = 1400 - 440

127

Load Carrying

- 1200 = - 240 pounds. No, you do
not have enough cargo capacity
to carry that much weight. In
metric units, the calculation would
be: 635 kilograms - (2 x 99
kilograms) - (12 x 45 kilograms) =
635 - 198 - 540 = -103 kilograms.
You will need to reduce the load
weight by at least 240 pounds
(104 kilograms). If you remove
three 100-pound (45-kilogram)
cement bags, then the load
calculation would be:1400 - (2 x
220) - (9 x 100) = 1400 - 440 -
900 = 60 pounds. Now you have
the load capacity to transport the
cement and your friend home. In
metric units, the calculation would
be: 635 kilograms - (2 x 99
kilograms) - (9 x 45 kilograms) =
635 - 198 - 405 = 32 kilograms.
The above calculations also
assume that the loads are
positioned in your vehicle in a
manner that does not overload
the front or the rear gross axle
weight rating specified for your
vehicle on the Safety Compliance
Certification label.

Special Loading Instructions
for Owners of Pick-up Trucks
and Utility-type Vehicles

WARNING:

When loading

the roof racks, we recommend
you evenly distribute the load,
as well as maintain a low center
of gravity. Loaded vehicles, with
higher centers of gravity, may

handle differently than unloaded
vehicles. Take extra precautions,
such as slower speeds and
increased stopping distance,
when driving a heavily loaded
vehicle.

128

Load Carrying

TOWING A TRAILER

WARNING:

Do not exceed

the GVWR or the GAWR
specified on the certification
label.

WARNING:

Towing trailers

beyond the maximum
recommended gross trailer
weight exceeds the limit of your
vehicle and could result in engine
damage, transmission damage,
structural damage, loss of
vehicle control, vehicle rollover
and personal injury.

Your vehicle may have electrical
items, for example fuses or relays,
related to towing. See

Fuses

(page 152).

Your vehicle's load capacity
designation is by weight, not by
volume, so you cannot necessarily
use all available space when
loading your vehicle.
Towing a trailer places an extra
load on your vehicle's engine,
transmission, axle, brakes, tires
and suspension. Inspect these
components periodically during,
and after, any towing operation.

Load Placement

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 and
right 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.

•

Select a draw bar with the
correct rise or drop. When both
the loaded vehicle and trailer

are connected, the trailer frame
should be level, or slightly
angled down toward your
vehicle, when viewed from the
side.

When driving with a trailer or
payload, a slight takeoff vibration
or shudder may be present due to
the increased payload weight.
Additional information regarding
correct trailer loading and setting
your vehicle up for towing is
located in another chapter of this
Owner's Manual. See

Load Limit

(page 124). You can also find the
information in the RV & Trailer
Towing Guide. See an authorized
dealer.

129

Towing

ESSENTIAL TOWING CHECKS

Follow these guidelines for safe towing:
•

Do not tow a trailer until you drive your
vehicle at least 1,000 mi (1,600 km).

•

Consult your local motor vehicle laws
for towing a trailer.

•

See the instructions included with
towing accessories for the proper
installation and adjustment
specifications.

•

Service your vehicle more frequently if
you tow a trailer. See your scheduled
maintenance information. See

Scheduled Maintenance

(page 247).

•

If you use a rental trailer, follow the
instructions the rental agency gives
you.

See

Load limits

in the Load Carrying

chapter for load specification terms found
on the tire label and Safety Compliance
label and instructions on calculating your
vehicle's load.

Remember to account for the trailer
tongue weight as part of your vehicle load
when calculating the total vehicle weight.

Trailer Towing Connector

E163167

When attaching the trailer wiring connector
to your vehicle, only use a proper fitting
connector that works with the vehicle and
trailer functions. Some seven-position
connectors may have the SAE J2863 logo,
which confirms that it is the proper wiring
connector and works correctly with your
vehicle.

Function

Color

Left turn signal and stop lamp

Yellow

Ground (-)

White

Electric brakes

Blue

Right turn signal and stop
lamp

Green

Battery (+)

Orange

Running lights

Brown

Reverse lights

Grey

Hitches

Do not use a hitch that either clamps onto
the bumper or attaches to the axle. You
must distribute the load in your trailer so
that 10-15% of the total weight of the
trailer is on the tongue.

Weight-distributing Hitches

WARNING:

Do not adjust the spring

bars so that your vehicle's rear bumper
is higher than before attaching the trailer.
Doing so will defeat the function of the
weight-distributing hitch, which may
cause unpredictable handling, and could
result in serious personal injury.

When connecting a trailer using a
weight-distributing hitch, always use the
following procedure:

131

Towing

Park the loaded vehicle, without the
trailer, on a level surface.

2. Measure the height to the top of your

vehicle's front wheel opening on the
fender. This is H1.

3. Attach the loaded trailer to your vehicle

without the weight-distributing bars
connected.

4. Measure the height to the top of your

vehicle's front wheel opening on the
fender a second time. This is H2.

5. Install and adjust the tension in the

weight-distributing bars so that the
height of your vehicle's front wheel
opening on the fender is approximately
halfway down from H2, toward H1.

6. Check that the trailer is level or slightly

nose down toward your vehicle. If not,
adjust the ball height accordingly and
repeat Steps 2-6.

When the trailer is level or slightly nose
down toward the vehicle:
•

Lock the bar tension adjuster in place.

•

Check that the trailer tongue securely
attaches and locks onto the hitch.

•

Install safety chains, lighting and trailer
brake controls as required by law or the
trailer manufacturer.

Safety Chains

Note:

Do not attach safety chains to the

bumper.

Always connect the safety chains to the
frame or hook retainers of your vehicle
hitch.

To connect the safety chains, cross the
chains under the trailer tongue and allow
enough slack for turning tight corners. Do
not allow the chains to drag on the ground.

Trailer Brakes

WARNING:

Do not connect a

trailer's hydraulic brake system directly
to your vehicle's brake system. Your
vehicle may not have enough braking
power and your chances of having a
collision greatly increase.

Electric brakes and manual, automatic or
surge-type trailer brakes are safe if you
install them properly and adjust them to
the manufacturer's specifications. The
trailer brakes must meet local and federal
regulations.

The rating for the tow vehicle's braking
system operation is at the gross vehicle
weight rating, not the gross combined
weight rating.

Separate functioning brake systems
are required for safe control of towed
vehicles and trailers weighing more
than 1500 lb (680 kg) when loaded.

Integrated Trailer Brake Controller (If
Equipped)

WARNING:

Use the integrated

trailer brake controller to properly adjust
the trailer brakes and check all
connections before towing a trailer.
Failure to follow this instruction could
result in the loss of control of your
vehicle, personal injury or death.

Note:

The Ford trailer brake controller has

been verified to be compatible with trailers
having electric-actuated drum brakes (one
to four axles) and electric-over-hydraulic
brakes. It will not activate hydraulic
surge-style trailer brakes. It is the
responsibility of the customer to ensure that
the trailer brakes are adjusted appropriately,
functioning normally and all electric
connections are properly made.

132

Towing

E183395

When used properly, the trailer brake
controller assists in smooth and effective
trailer braking by powering the trailer’s
electric or electric-over-hydraulic brakes
with a proportional output based on the
towing vehicle’s brake pressure.

The controller user interface consists of
the following:

+ and - (Gain adjustment buttons):

Pressing these buttons adjusts the
controller's power output to the trailer
brakes in 0.5 increments. You can increase
the gain setting to 10.0 (maximum trailer
braking) or decrease it to 0 (no trailer
braking). The gain setting displays in the
message center.

The controller shows gain setting, output
bar graph, and trailer connectivity status
in the information display. They appear in
the information display as follows:
•

Trailer Brake Controller Gain (without
trailer connected): Shows the current
gain setting during a given ignition cycle
and when adjusting the gain. This also
displays if you use the manual control
lever or make gain adjustments with
no trailer connected.

•

Trailer Brake Controller Gain Output:
Displays when you push your vehicle's
brake pedal, or upon use of the manual
control. Bar indicators illuminate in the
information display to indicate the
amount of power going to the trailer
brakes relative to the brake pedal or
manual control input. One bar indicates
the least amount of output; six bars
indicate maximum output.

•

Trailer Connected: Displays when the
system senses a correct trailer wiring
connection (a trailer with electric trailer
brakes) during a given ignition cycle.

•

Trailer Disconnected: Displays,
accompanied by a single audible tone,
when the system senses a trailer
connection and then a disconnection,
either intentional or unintentional,
during a given ignition cycle. It also
displays if a truck or trailer-wiring fault
occurs causing the trailer to appear
disconnected. This message also
displays if you use the manual control
lever without a trailer connected.

Manual control lever: Slide the control

lever to the left to switch on the trailer's
electric brakes independent of the tow
vehicle's. See

Procedure for Adjusting

Gain

section for instructions on proper use

of this feature. If you use the manual
control while the brake is also applied, the
greater of the two inputs determines the
power sent to the trailer brakes.

133

Towing

•

Stoplamps:

Using the manual control

lever illuminates both the trailer brake
lamps and your vehicle brake lamps
except the center high mounted
stoplamp, if you make the proper
electrical connection to the trailer.
Pressing your vehicle brake pedal also
illuminates both trailer and vehicle
brake lamps.

Procedure for Adjusting Gain

Note:

Only perform this procedure in a

traffic-free environment at speeds of
approximately 20-25 mph (30-40 km/h).

The gain setting sets the trailer brake
controller for the specific towing condition.
You should change the setting as towing
conditions change. Changes to towing
conditions include trailer load, vehicle load,
road conditions and weather.

Set the gain to provide the maximum
trailer braking assistance while making
sure the trailer wheels do not lock when
using the brakes. Locked trailer wheels
may lead to trailer instability.

Make sure the trailer brakes are in good
working condition, functioning normally
and properly adjusted. See your trailer
dealer if necessary.

2. Connect the trailer and make the

electrical connections according to the
trailer manufacturer's instructions.

3. When you plug in a trailer with electric

or electric-over-hydraulic brakes, a
message confirming connection
appears in the information display.

4. Use the gain adjustment (+ and -)

buttons to increase or decrease the
gain setting to the desired starting
point. A gain setting of 6.0 is a good
starting point for heavier loads.

5. In a traffic-free environment, tow the

trailer on a dry, level surface at a speed
of 20-25 mph (30-40 km/h) and
squeeze the manual control lever
completely.

6. If the trailer wheels lock up, indicated

by squealing tires, reduce the gain
setting. If the trailer wheels turn freely,
increase the gain setting. Repeat Steps
5 and 6 until the gain setting is at a
point just below trailer wheel lock-up.
If towing a heavier trailer, trailer wheel
lock-up may not be attainable even
with the maximum gain setting of 10.

Explanation of Information Display
Warning Messages

Note:

An authorized dealer can diagnose

the trailer brake controller to determine
exactly which trailer fault has occurred.
However, your Ford warranty does not cover
this diagnosis if the fault is with the trailer.

A message indicating a trailer brake
module fault may display in response to
faults sensed by the trailer brake controller,
accompanied by a single tone. If this
message appears, contact an authorized
dealer as soon as possible for diagnosis
and repair. The controller may still
function, but performance may be
degraded.

A message indicating a trailer wiring fault
may display when there is a short circuit
on the electric brake output wire. If this
message displays, accompanied by a
single tone, with no trailer connected, the
problem is with your vehicle wiring
between the trailer brake controller and
the 7-pin connector at the bumper. If the
message only displays with a trailer
connected, the problem is with the trailer

134

Towing

Ford E-350 (2023 year). Manual in english - page 8