2021 FORD F-250 change time

The electronic torque overlay steering
system adds supplemental steering assist
to the hydraulic gear when needed,
dependent on vehicle conditions such as
vehicle speed, steering wheel angle, and
steering wheel torque. The hydraulic
steering system provides the majority of
steering assistance. The electronic torque
overlay enables features such as pro trailer
backup assistance and lane departure
warning.
If your vehicle loses electrical power while
you are driving, your vehicle loses electric
power steering assistance. The steering
system still operates, and you can steer
your vehicle with hydraulic assist. Steering
your vehicle with only hydraulic assist
requires more effort.
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.
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. 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. Adaptive Steering
(If Equipped)
Note: The adaptive steering system has
diagnostic checks that continuously monitor
the system. If the system detects a fault, a
message displays in the information display.
If a red warning message displays, stop your
vehicle as soon as it is safe to do so. The
message may clear if the fault is no longer
present. If an adaptive steering system
warning message appears each time you
start your vehicle, have the system checked
as soon as possible.
The adaptive steering system continually
changes the steering ratio with changes to
vehicle speed, optimizing the steering
response in all conditions. The system also
changes when you switch on the
transmission tow/haul feature. When you
select the tow/haul button, the adaptive
steering system reduces vehicle sensitivity
to steering inputs at higher vehicle speeds,
while maintaining the ease of parking and
maneuverability at low speeds.
Note: The adaptive steering system is
designed with a locking device. With the
lock engaged, the adaptive steering system
remains mechanically locked at a fixed
steering ratio. You may also notice a click
when you switch the vehicle on or after you
switch it off, as the lock disengages or
engages.
Note: If your vehicle loses electrical power
or detects a fault when you are driving, the
system automatically shuts down and you
retain normal steering function with a fixed
steering ratio. During this time it is possible
that the steering wheel may not be straight
when the vehicle is driving straight ahead.
In addition, the driver may notice that the
steering wheel angle required to steer the
vehicle may be different.
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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. Time Gap
Distance Gap
Graphics
Sensitivity
Speed
>0.9sec
>82 ft (25 m)
Grey
Normal
62 mph
(100 km/h)
0.6sec —0.9sec
56–82 ft
(17 –25 m)
Yellow
Normal
62 mph
(100 km/h)
<0.6sec
<
56 ft (17 m)
Red
Normal
62 mph
(100 km/h)
Adjusting the Pre-Collision Assist
Settings
You can adjust the following settings by
using the information display controls.
See
General Information (page 110).
• You can change Alert and Distance
Alert sensitivity to one of three 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.
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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.
Pre-Collision Assist disables itself. The
system automatically reactivates a short
time after the weather conditions improve.
Heavy rain, spray, snow or fog is interfering
with the radar signals.
Pre-Collision Assist disables itself. The
system automatically 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 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. DRIVE CONTROL (IF EQUIPPED)
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 system's performance
settings.
Changing the drive mode automatically
changes the functionality of the following
systems:
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4. When in this mode, you can see the
camera view on the side your trailer is
moving, or both sides when the trailer
is straight behind you. When the views
change with the trailer direction, it is
called auto mode. For example, if you
turn the trailer to the right, you see the
right side of your vehicle and trailer.
You can manually switch this view at
any time by using the arrow keys. To
return to auto mode, press the auto
button. Straight backup mode. Use this
view when you want to keep your
trailer completely in line with
your truck. In this mode, a steering wheel
graphic shows you which way to turn your
steering wheel to keep your trailer straight.
Note: It may be helpful to shift your vehicle
into drive (D), pull forward and straighten
out the vehicle and trailer before engaging
straight backup mode.
System Camera Views
Use the view that helps you the most when
reversing your vehicle and trailer. You can
use these views in either mode.
Left and right arrows let you see other
views regardless of your trailer angle in rear
split view camera and Trailer Reverse
Guidance view.
Auto mode is the default view if you have
set up Trailer Reverse Guidance. 360 camera. Shows a 360
degree view on the right-hand
side of the screen, with the keep
out zone on the left-hand side of the
screen. Rear view camera. Use this view
when you want to see your trailer
hitch or what is directly behind
your vehicle. Rear split view camera. Shows
a 180 degree view of behind your
vehicle.
Bed camera. Shows the truck
bed and can be used for a fifth
wheel or gooseneck trailer.
Trailer AUX camera. Shows a
rear view camera image of what
is behind your trailer. This
camera needs to be purchased and
separately installed. Trailer Reverse Guidance view.
Shows you a view of the sides of
your truck and your trailer. In
auto mode, this view moves as your trailer
moves so that you do not have to adjust
the camera as you turn. This takes you back to the
360-degree camera system and
out of the Trailer Reverse
Guidance feature. Auto. This feature returns you to
auto view.
Hitch Angle Graphic
After setting up a trailer, the display shows
a small top-view representation of your
truck and trailer.
This representation shows two,
different-colored lines. A black line shows
you where your trailer is in relation to your
vehicle. For Trailer Backup Assist, the white
line represents the amount the trailer can
turn based on knob input. For Trailer
Reverse Guidance, the white line
represents the amount the trailer can turn
based on steering wheel position.
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System consistently shows Pro Trailer
Backup Assist™ Stop now Maximum trailer
angle Press Knob to Exit:
•
The system uses your measurements
to determine sticker position and
establish system limits. Accurate
sticker placement and trailer
measurements provide the best
system performance. If you are
consistently receiving this warning, it is
likely there is an issue with sticker
placement or the entered
measurements. Make sure that the
sticker is placed correctly based on
step 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
information display 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 Pro Trailer
Backup Assist™ Stop Now Take Control
of Steering Wheel:
•
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 when
under system control. Avoid touching
the wheel during system operation.
• The maximum speed for feature
operation is exceeded. System
performance is optimized at slower
speeds. Reverse 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
troubleshooting tips.
• An internal condition for system
operation was not met which requires
your vehicle to return to manual control
of the steering. Using the system for an
extended period of time can cause the
steering system to heat up and turn off
Pro Trailer Backup Assist steering
control to protect itself. The system
may require a cool down time of up to
30 minutes. Keep the system off and
drive forward at a normal speed or
switch the vehicle off.
Note: The system is designed to be used
with the same trailer connection every time
the trailer is chosen from the selection
menu. When using a different drawbar or a
different pin hole on drawbars with more
than one, connecting the drawbar to your
vehicle affects the trailer measurements.
Take the measurements again and update
if required.
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•
Allow more distance for stopping with
a trailer attached. Anticipate stops and
brake gradually.
• Avoid parking on a grade. However, if
you must park on a grade:
1. Turn the steering wheel to point your vehicle tires away from traffic flow.
2. Set your vehicle parking brake.
3. Place the transmission in park (P).
4. Place wheel chocks in front and back of the trailer wheels. (Chocks not
included with vehicle.)
Your vehicle may be equipped with a
temporary or conventional spare tire. A
"temporary" spare tire is different in size
(diameter or width), tread-type
(All-Season or All Terrain) or is from a
different manufacturer than the road tires
on your vehicle. Consult information on the
tire label or Safety Compliance label for
limitations when using.
Launching or Retrieving a Boat or
Personal Watercraft (PWC)
Note: Disconnect the wiring to the trailer
before backing the trailer into the water.
Note: Reconnect the wiring to the trailer
after
you remove the trailer from the water.
When backing down a ramp during boat
launching or retrieval:
• Do not allow the static water level to
rise above the bottom edge of the rear
bumper.
• Do not allow waves to break higher
than
6 in (15 cm) above the bottom
edge of the rear bumper.
Exceeding these limits may allow water to
enter vehicle components:
• Causing internal damage to the
components.
• Affecting driveability, emissions, and
reliability. Replace the rear axle lubricant anytime
the rear axle has been submerged in water.
Water may have contaminated the rear
axle lubricant, which is not normally
checked or changed unless a leak is
suspected or other axle repair is required.
TOWING THE VEHICLE ON
FOUR WHEELS
WARNING:
If your vehicle has a
steering wheel lock make sure the
ignition is in the accessory or on position
when being towed.
Emergency Towing
If your vehicle becomes inoperable
(without access to wheel dollies,
car-hauling trailer, or flatbed transport
vehicle), it can be flat-towed (all wheels
on the ground, regardless of the powertrain
and transmission configuration) under the
following conditions:
• Your vehicle is facing forward for
towing in a forward direction.
• Place the transmission in neutral (N).
If you cannot move the transmission
into neutral (N), you may need to
override it. See
Transmission (page
207).
• Maximum speed is 35 mph (56 km/h).
• Maximum distance is
50 mi (80 km).
Recreational Towing
Note: Put your climate control system in
recirculated air mode to prevent exhaust
fumes from entering your vehicle.
See
Climate Control (page 143).
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In addition to providing an excellent
on-road driving experience, your vehicle
excels at all types of off-road driving. Your
vehicle has been designed and equipped
to allow you to explore those places where
the road doesn
’t take you, whether it’ s a
forest trail or the open desert. Before going
off-roading, consult with your local
governmental agencies to determine
designated off-road trails and recreation
areas. Also, be sure to understand any
off-road vehicle registration requirements
for the area in which you plan on driving.
Tread Lightly® is an educational program
designed to increase public awareness of
land-use regulations and responsibilities
in our nation ’s wilderness areas. Ford joins
the U.S. Forest Service and Bureau of Land
Management in encouraging you to help
preserve our national forest and other
public and private lands by treading lightly.
Before taking your vehicle off-roading, a
basic vehicle inspection should be
conducted to make sure that the vehicle
is in peak operating 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,
drinking water, tow strap, cell or satellite
phone with you any time an off-road
excursion is planned.
Remove the front license plate before
off-roading to achieve optimal
performance. Basic Off-road Driving Techniques
•
Grip the steering wheel with thumbs
on the outside of the rim. This reduces
the risk of injury due to abrupt steering
wheel motions that occur when
negotiating rough terrain. Do not grip
the steering wheel with thumbs inside
the rim.
• 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 sloped terrain or while crossing
obstacles such as rocks or logs.
• Look ahead on your route noting
upcoming obstacles, changes to
surface texture, color changes and any
other factors which may indicate a
change in available traction. Adjusting
the vehicle speed and route
accordingly. During pre-run, mark
obstacles with GPS markers to make
sure appropriate speeds are used to
avoid potential vehicle damage.
• 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.
• When running with other vehicles, it is
recommended that some form of radio
communication is used so the lead
vehicle can notify others of obstacles
that could cause damage.
• 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.
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•
Inspect exhaust system for damage or
looseness.
• Inspect undercarriage fasteners. If any
are loose or damaged, tighten or
replace ensuring that the proper torque
specification is used.
• Inspect the tires for any cuts in the
tread or sidewall area. Also inspect the
sidewall for any bulge indicating
damage to the tire.
• Inspect the wheels for dents, cracks,
or other damage.
• Refit the front license plate if removed
previously.
BREAKING-IN
You need to break in new tires for
approximately 300 mi (480 km). During
this time, your vehicle may exhibit some
unusual driving characteristics.
Avoid driving too fast during the first
1,000 mi (1,600 km)
. Vary your speed
frequently and change up through the
gears early. Do not labor the engine.
Drive your new vehicle at least
1,000 mi
(1,600 km) before towing a trailer. Make
sure you use the specified engine oil. See
Engine Oil Capacity and Specification
(page
449).
Do not add friction modifier compounds
or special break-in oils during the first few
thousand miles (kilometers) of operation.
These additives may prevent piston ring
seating.
DRIVING THROUGH WATER WARNING:
Do not drive through
flowing or deep water as you may lose
control of your vehicle. Note:
Engine damage can occur if water
enters the air filter.
For Vehicles without Tremor Off-
Road Package
Note: Driving through standing water can
cause vehicle damage.
Note: Drive through water in an emergency
only and not as part of normal driving.
Before driving through standing water,
check the depth. Never drive through water
that is higher than the bottom of the wheel
hubs. When driving through standing water, drive
very slowly and do not stop your vehicle.
Your brake performance and traction may
be limited. After driving through water and
as soon as it is safe to do so:
•
Lightly press the brake pedal to dry the
brakes and to check that they work.
• Check that the horn works.
• Check that the exterior lights work.
• Turn the steering wheel to check that
the steering power assist works.
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