2023 FORD F650/750 change time

GENERAL INFORMATION
WARNING: Exceeding these ratings
by overloading can cause component
failure resulting in property damage,
personal injury or death.
Fluid Temperature
If the operating temperature exceeds
250°F (121°C), the rate of axle lubrication
oxidation increases and shortens the life
of the lubricant and seals, requiring axle
lubrication changes to become more
frequent to preserve the axle. Do not
consistently run extreme pressure (EP)
lubricants above 250°F (121°C).
Axle Conversions
WARNING: When operating a
loaded vehicle, the driver must keep all
adjustable axles on the ground at all
times, supporting their share of the
vehicle’s load. Failure to do so can
overload other axles, tires, wheels,
springs, steering components, brakes
and frames, resulting in early component
failure, loss of vehicle control, possible
property damage and personal injury.
We do not recommend, or approve,
performing axle conversions. However, we
understand that, on occasion, others install
aftermarket add-on axles on the truck
chassis that allow operator control for
weight transfer from other axles (such as
air lift axles).
2-SPEED REAR AXLE (IF EQUIPPED)
WARNING: Never shift a
two-speed axle when descending a
steep grade as this may cause loss of
vehicle control and result in personal
injury.
Note:Do not shift between ranges when
the speed control is on.
A two-speed rear axle allows the driver to
select a low range for greater pulling power
and a high range for greater road speed
and fuel economy. You can also use these
ranges to provide extra steps between
transmission shifts when driving on steep
grades or fuel economy may be factors.
Axle Shifting
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Note:Do not shift the axle to LOW when
your vehicle is moving. Use LOW when you
drive a fully loaded vehicle on a severe grade
or in congested traffic. Use HIGH for all
normal driving conditions with a lightly
loaded or partially loaded vehicle.
Note:The axle is set to HIGH by default.
To shift the axle between HIGH and LOW
with the vehicle stopped, place the
transmission in position N, then press and
hold the button for two seconds.
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Rear Axle

PRINCIPLE OF OPERATION -
VEHICLES WITH: HYDRAULIC
BRAKES
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 turns on each time you switch
the ignition on.
If a fault occurs in either the stability
control or the traction control system, the
following conditions are possible:
• The stability and traction control light
illuminate.
• The stability control and traction
control systems are not maintaining
traction of the wheels.
If a driving condition activates either the
stability control or the traction control
system, the following conditions are
possible:
• The stability and traction control light
flash.
• Your vehicle slows down.
• The system reduces 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 could 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 assists in preventing skids or
lateral slides by applying the brakes to one
or more of the wheels individually and, if
necessary, decreases engine power.
151
Stability Control

Traction Control
The system helps maintain traction of the
wheels by detecting and controlling wheel
spin. See Using Traction Control (page
149).
E72903
Vehicle without stability control
skidding off its intended route. A
Vehicle with stability control
maintaining control on a slippery
surface. B
PRINCIPLE OF OPERATION -
VEHICLES WITH: AIR BRAKES
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.
152
Stability Control

• The stability control and traction
control systems do not enhance your
vehicle's ability to maintain traction of
the wheels.
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 rapidly.
• Your vehicle slows down.
• Reduced engine power.
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.
Roll Stability Control
The system enhances your vehicle’s ability
to prevent rollovers by detecting your
vehicle’s motion and the rate at which it
changes by applying the brakes to one or
more wheels individually.
Traction Control
The system enhances your vehicle’s ability
to maintain traction of the wheels by
detecting and controlling wheel spin. See
Using Traction Control (page 149).
E72903
Vehicle without stability control
skidding off its intended route. A
Vehicle with stability control
maintaining control on a slippery
surface. B
USING STABILITY CONTROL
The system automatically turns on each
time you switch the ignition on
You cannot switch the stability control and
roll stability control systems off, but when
you shift into reverse (R), the systems
deactivate.
You can switch the traction control system
off or on. See Traction Control (page 149).
Limitations of the Stability System
Stability Control effectiveness may be
greatly reduced if:
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Stability Control

• Your load shifts due to improper
retention, accident damage or the
inherently mobile nature of some loads,
for example, hanging meat, live
animals or partially laden tankers.
• Your vehicle or load has an unusually
high or off-set center of gravity.
• Your brakes are not properly adjusted
or maintained.
• One side of your vehicle drops off the
pavement at an angle that is too great
to be counteracted by a reduction in
speed.
To Maximize the Effectiveness Of
Stability Control
• Make sure that the weight of your load
is evenly distributed, from front to back,
side to side and you secure it properly
at all times.
• Exercise extreme caution at all times
while driving and avoid sharp turns,
sudden steering inputs or abrupt lane
changes at high speeds, particularly if:
• Hauling loads that can shift.
• Your vehicle or load has a high or
off-set center of gravity when
loaded.
• You are towing doubles or triples.
Electronic Stability Control Usage with
Tractor/Trailer
The electronic stability control system is
designed to work with trailer air brake
systems. We do not recommend its use
with any other trailer brake system.
Electronic Stability Control and Towing
with Non-tractor Trucks (Straight or
Kick-up Frame)
Non-tractor trucks (straight or kick-up
frame) with air brake electronic stability
control, should not be used for towing any
type of trailer.Chassis Modifications
Stability control is specifically calibrated
and validated only for your vehicle's
original configuration. If you alter your
vehicle's chassis components, for example,
a wheel base extension or reduction, tag
axle addition or removal, a major body
change such as conversion of a tractor into
a truck. Ford Motor Company is not
responsible for the performance of the
stability control system if you modify any
major components such as axle,
suspension or steering system.
154
Stability Control

• Your vehicle speed falls below 12 mph
(20 km/h).
• You set a new gap distance.
The system applies the brakes to slow your
vehicle to maintain a safe gap distance
from the vehicle in front. The system only
applies limited braking. You can override
the system by applying the brakes.
If the system determines that its maximum
braking level is not sufficient, an audible
warning sounds, a message appears in the
information display and an indicator
flashes when the system continues to
brake. Take immediate action.
Setting the Gap Distance
You can decrease or increase the distance
between your vehicle and the vehicle in
front by pressing the gap control.
There are four gap settings from shortest
to longest.
E263697
Press and release to decrease
the gap distance.
E263696
Press and release to increase the
gap distance.
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The selected gap appears in the
information display as shown by the bars
in the image.
Each time you switch the system on, it
selects the last chosen gap setting.Note:The gap setting is time dependent
and therefore the distance adjusts with your
vehicle speed.
Note:It is your responsibility to select a gap
appropriate to the driving conditions.
Overriding the Set Speed
WARNING: If you override the
system by pressing the accelerator
pedal, it does not automatically apply
the brakes to maintain a gap from any
vehicle ahead.
When you press the accelerator pedal, you
override the set speed and gap distance.
E144529
Use the accelerator pedal
normally to intentionally exceed
the set speed limit.
When you override the system, the green
indicator light illuminates and the vehicle
image does not appear in the information
display.
The system tunes the engine, transmission
controls and the stability and traction
control modes to normal mode. The
vehicle speed decreases to the set speed,
or a lower speed if following a slower
vehicle.
Changing the Set Speed
Press and release to increase the
set speed in small increments.
Press and release to decrease
the set speed in small
increments.
Press and hold either button to change the
set speed in large increments. Release the
button when the set speed has reached
the desired speed.
157
Cruise Control - Vehicles With: Adaptive Cruise Control

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.
E173233
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.
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.
E165517
Normal A
Increased B
Note:The alert diagram illustrates general
zone coverage. It does not provide exact
zone parameters.
System Display
E233874E233874
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.
165
Driving Aids

Gray: Indicates that the system is
temporarily unable to provide a warning
on the indicated side(s). This may be
because:
• Your vehicle is below the activation
speed.
• The direction indicator is active.
• Your vehicle is in a dynamic maneuver.
• The road has no or poor lane markings
in the camera field-of-view.
• The camera is obscured or unable to
detect the lane markings due to
environmental, traffic or vehicle
conditions. For example, significant sun
angles, shadows, snow, heavy rain or
fog, following a large vehicle that is
blocking or shadowing the lane or poor
headlamp illumination.See Troubleshooting for additional
information.
Green: Indicates that the system is
available or ready to provide a warning on
the indicated side(s).
Red: Indicates that the system is providing
or has just provided a lane keeping alert
warning.
You can temporarily disable the system at
any time by doing the following:
• Quick braking.
• Fast acceleration.
• Using your direction indicator.
• Evasive steering maneuver.
• Driving too close to the lane markings.
Troubleshooting
Why is the feature not available (line markings are gray) when I can see the lane markings
on the road?
Your vehicle speed is outside the operational range of the feature.
The sun is shining directly into the camera lens.
A quick intentional lane change has occurred.
Your vehicle stays too close to the lane markings.
Driving at high speeds in curves.
The last feature activation occurred a short time ago.
Ambiguous lane markings, for example in construction zones.
Rapid transition from light to dark, or from dark to light.
Sudden offset in lane markings.
ABS or AdvanceTrac™ is active.
There is a camera blockage due to dirt, grime, fog, frost or water on the windshield.
You are driving too close to the vehicle in front of you.
Transitioning between no lane markings to lane markings or vice versa.
166
Driving Aids