2021 FORD F-53 lane assist

Brakes
General Information
.....................................54
Hints on Driving With Anti-Lock Brakes ........................................................................\
..
55
Parking Brake ..................................................
55
Hill Start Assist ..............................................
56
Traction Control
Principle of Operation ..................................
57
Using Traction Control .................................
57
Stability Control
Principle of Operation .................................
58
Cruise Control
What Is Cruise Control ................................
60
Switching Cruise Control On and Off ........................................................................\
..
60
Setting the Cruise Control Speed ...........
60
Canceling the Set Speed ............................
61
Resuming the Set Speed ............................
61
Cruise Control Indicators .............................
61
Using Adaptive Cruise Control ..................
61
Driving Aids
Driver Alert .......................................................
69
Lane Keeping System ..................................
70
Steering .............................................................
73
Pre-Collision Assist .......................................
74
Load Carrying
Load Limit ........................................................
78
Towing
Towing a Trailer ..............................................
83
Recommended Towing Weights .............
84
Essential Towing Checks ............................
87
Towing the Vehicle on Four Wheels ......
89Driving Hints
Reduced Engine Performance
.................
90
Economical Driving ......................................
90
Breaking-In .......................................................
91
Driving Through Water .................................
91
Roadside Emergencies
Roadside Assistance ...................................
93
Hazard Flashers .............................................
94
Jump Starting the Vehicle .........................
94
Transporting the Vehicle ............................
96
Customer Assistance
Getting the Services You Need ................
98
In California (U.S. Only) ..............................
99
The Better Business Bureau (BBB) Auto Line Program (U.S. Only) .....................
100
Getting Assistance Outside the U.S. and Canada .........................................................
101
Ordering Additional Owner's Literature ........................................................................\
.
102
Reporting Safety Defects (U.S. Only) ........................................................................\
.
102
Reporting Safety Defects (Canada Only) ........................................................................\
.
103
Fuses
Fuse Specification Chart ..........................
104
Changing a Fuse .............................................
111
Maintenance
General Information ....................................
113
Under Hood Overview - Commercial Chassis .........................................................
114
Under Hood Overview - Motorhome Chassis .........................................................
115
Engine Oil Dipstick .......................................
116
Engine Oil Check ...........................................
116
Oil Change Indicator Reset .......................
116
Changing the Engine Air Filter ..................
117
Engine Coolant Check ................................
118
2
2021 Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 202010, Second-Printing Table of Contents

DRIVER ALERT (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 may not
function if the sensor is blocked. 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. The system automatically monitors your
driving behavior using various inputs
including the front camera sensor.
If the system detects that your driving
alertness is reduced below a certain
threshold, the system will alert you using
a tone and a message in the information
display.
Note:
Keep the windshield free from
obstructions. For example, bird droppings,
insects and snow or ice.
Note: If the camera is blocked or if the
windshield is damaged, the system may not
function.
Note: The system remembers the last
setting when you start your vehicle, unless
a MyKey ™ is detected.
Note: If enabled in the menu, the system
activates at speeds above
40 mph
(64 km/h).
Using Driver Alert
Switching the System On and Off
You may switch the system on or off
through the information display by
selecting Settings, then Driver Assist, and
then Driver Alert in the menu. When
activated, the system will monitor your
alertness level based upon your driving
behavior in relation to the lane markings,
and other factors.
69
2021 Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 202010, Second-Printing Driving AidsE243054

When you switch the system on and it
detects an unintentional drift out of your
lane is likely to occur, the system notifies
or assists you to stay in your lane through
the steering system and information
display. The system provides a warning by
an audible tone.
Switching the System On and Off
Note:
The system on or off setting is stored
until it is manually changed, unless a MyKey
is detected. If the system detects a MyKey,
it defaults to on and the mode is set to alert.
Note: If a MyKey is detected, pressing the
button does not affect the on or off status
of the system. You can only change the
mode and sensitivity settings. Press the button to switch the
system on or off. The button is
above the audio unit or on the
center console.
System Settings
The system sensitivity and intensity can
be adjusted through the display screen.
See General Information (page 30). The
system remembers the last selection. You
do not need to readjust the setting each
time you turn on your vehicle.
Sensitivity:
This setting allows you to
select where in the lane a warning is
provided. Increasing the sensitivity setting
moves the warning zones in closer to your
vehicle. Normal
A
Increased
B
Note: The alert diagram illustrates general
zone coverage. It does not provide exact
zone parameters.
System Display When you switch on the system, a graphic
with lane markings appears in the display
screen.
Note:
The overhead vehicle graphic may
still display if adaptive cruise control is
enabled.
While the system is on, the color of the
lane markings change to indicate the
system status.
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2021 Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 202010, Second-Printing Driving AidsE173233 E165517 E233874

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 you are
trying to free a stuck vehicle, pause
between attempts to allow the power
steering system to cool, or seek
assistance. Normal 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 the noise is excessive, check for low
power steering pump fluid level before
seeking service by your dealer. •
Low power steering fluid could cause
the steering to be heavy or uneven.
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 could 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.
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2021 Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 202010, Second-Printing Driving Aids

E
Economical Driving.......................................90
Electromagnetic Compatibility...............180
Emission Law..................................................46
Engine Block Heater......................................39
Engine Coolant Check.................................118
Engine Emission Control
.............................46
Engine Oil Check............................................116
Engine Oil Dipstick........................................116
Engine Specifications
..................................152
Environment......................................................15
Essential Towing Checks.............................87
Event Data Recording See: Data Recording............................................... 7
Export Unique Options.................................14
F
Ford Credit
..........................................................11
Ford Protect...................................................166
Fuel and Refueling..........................................41
Fuel Consumption
.........................................44
Fuel Filter.........................................................129
Fuel Quality.......................................................41
Fuses.................................................................104
Fuse Specification Chart...........................104
G
Gauges...............................................................24
Gearbox See: Transmission................................................ 50
General Maintenance Information........168
Getting Assistance Outside the U.S. and Canada...........................................................101
Getting the Services You Need.................98
H
Handbrake See: Parking Brake............................................... 55
Hazard Flashers..............................................94
Hill Start Assist
...............................................56
Hints on Driving With Anti-Lock Brakes..............................................................55
Horn......................................................................17 I
Ignition Switch
.................................................37
In California (U.S. Only)...............................99
Information Display Control........................17
Information Displays....................................30 General Information............................................ 30
Information Messages
..................................34
Instrument Cluster.........................................24
Instrument Lighting Dimmer.....................20
Introduction........................................................5
J
Jump Starting the Vehicle..........................94
L
Lane Keeping System
...................................70
Lighting Control...............................................19
Lighting...............................................................19
Load Carrying
...................................................78
Load Limit.........................................................78
M
Maintenance....................................................113 General Information........................................... 113
Message Center See: Information Displays................................. 30
Mobile Communications Equipment.......13
Motorcraft Parts
............................................152
N
Normal Scheduled Maintenance
.............171
O
Oil Change Indicator Reset
........................116
Oil Check See: Engine Oil Check........................................ 116
Ordering Additional Owner's Literature
......................................................102
Overriding Automatic High Beam Control.............................................................23
186
2021 Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 202010, Second-Printing Index