
Warning Lamps and Indicators
...............60
Audible Warnings and Indicators ............
63
Information Displays
General Information ....................................
64
Information Messages .................................
67
Climate Control
Manual Climate Control ..............................
72
Hints on Controlling the Interior Climate ........................................................................\
...
73
Heated Exterior Mirrors ...............................
74
Seats
Sitting in the Correct Position ...................
75
Head Restraints ..............................................
75
Manual Seats ...................................................
77
Power Seats ....................................................
78
Rear Seats .......................................................
80
Front Seat Armrest ........................................
81
Rear Seat Armrest .........................................
81
Auxiliary Power Points
Auxiliary Power Points ................................
83
Storage Compartments
Overhead Console ........................................
85
Starting and Stopping the Engine
General Information ....................................
86
Ignition Switch ...............................................
86
Starting a Gasoline Engine ........................
87
Starting a Diesel Engine .............................
88
Switching Off the Engine ...........................
89
Engine Idle Shutdown .................................
90
Engine Block Heater ....................................
90
Fuel and Refueling
Safety Precautions .......................................
92Fuel Quality - Diesel
.....................................
93
Fuel Quality - Gasoline ...............................
96
Running Out of Fuel - Diesel .....................
97
Running Out of Fuel - Gasoline ................
97
Refueling - Diesel ..........................................
97
Refueling - Gasoline ....................................
98
Fuel Consumption ......................................
100
Fuel Tank Selector Switch ........................
101
Engine Emission Control
Emission Law ................................................
102
Catalytic Converter .....................................
103
Selective Catalytic Reductant System - Diesel ...........................................................
105
Diesel Particulate Filter .............................
109
Transmission
Automatic Transmission ............................
115
Power Take-Off .............................................
119
Rear Axle
General Information ...................................
120
Limited Slip Differential ............................
120
Electronic Locking Differential ...............
120
2-Speed Rear Axle ........................................
121
Brakes
General Information ....................................
122
Hints on Driving With Anti-Lock Brakes ........................................................................\
.
123
Parking Brake .................................................
123
Air Brakes ........................................................
126
Exhaust Brake ................................................
127
Trailer Brakes .................................................
129
Traction Control
Principle of Operation ................................
133
Using Traction Control - Vehicles With: Air Brakes ....................................................
133
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F650750 (TBC) , enUSA, Edition date: 201804, Second-Printing Table of Contents

Using Traction Control - Vehicles With:
Hydraulic Brakes ......................................133
Stability Control
Principle of Operation ................................
135
Using Stability Control ..............................
136
Cruise Control
Principle of Operation ................................
138
Using Cruise Control ...................................
138
Driving Aids
Steering ...........................................................
140
Load Carrying
Load Limit ........................................................
141
Air Suspension ..............................................
142
Towing
Towing a Trailer ............................................
144
Recommended Towing Weights ...........
145
Essential Towing Checks ..........................
146
Fifth Wheel Operation ...............................
147
Driving Hints
Breaking-In ....................................................
149
General Driving Points ...............................
149
Economical Driving .....................................
150
Cold Weather Precautions ........................
151
Driving Through Water ...............................
153
Roadside Emergencies
Roadside Assistance ..................................
154
Hazard Flashers ............................................
155
Fuel Shutoff ...................................................
155
Jump Starting the Vehicle ........................
156
Transporting the Vehicle ..........................
158
Customer Assistance
Ford Credit .....................................................
160Getting the Services You Need
..............
160
In California (U.S. Only) .............................
161
The Better Business Bureau (BBB) Auto Line Program (U.S. Only) .....................
162
Utilizing the Mediation/Arbitration Program (Canada Only) .......................
163
Getting Assistance Outside the U.S. and Canada ........................................................
163
Ordering Additional Owner's Literature ........................................................................\
.
164
Reporting Safety Defects (U.S. Only) ........................................................................\
.
165
Reporting Safety Defects (Canada Only) ........................................................................\
.
165
Fuses
Fuse Specification Chart ...........................
167
Changing a Fuse ...........................................
176
Vehicle Inspection Guide
Vehicle Inspection Information ..............
178
Maintenance
General Information ...................................
187
Opening and Closing the Hood .............
188
Under Hood Overview - 6.7L Diesel ......
190
Under Hood Overview - 6.8L ...................
191
Engine Oil Dipstick - 6.7L Diesel .............
192
Engine Oil Dipstick - 6.8L .........................
192
Engine Oil Check - 6.7L Diesel ................
192
Engine Oil Check - 6.8L .............................
193
Changing the Engine Oil and Oil Filter ........................................................................\
.
194
Changing the Crankcase Vent Filter Element - 6.7L Diesel .............................
195
Oil Change Indicator Reset ......................
196
Engine Coolant Check - 6.7L Diesel ......
196
Engine Coolant Check - 6.8L .................
200
Automatic Transmission Fluid Check ........................................................................\
204
Brake Fluid Check .......................................
205
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F650750 (TBC) , enUSA, Edition date: 201804, Second-Printing Table of Contents

Powertrain Malfunction/Reduced
Power/Electronic Throttle Control
(If Equipped)
Illuminates in the event of a
powertrain fault. Contact an
authorized dealer as soon as
possible.
Service Engine Soon If it illuminates when the engine
is running this indicates a
malfunction. The On Board
Diagnostics system has detected a
malfunction of the vehicle emission control
system.
If it flashes, engine misfire may be
occurring. Increased exhaust gas
temperatures could damage the catalytic
converter or other vehicle components.
Drive in a moderate fashion (avoid heavy
acceleration and deceleration) and have
your vehicle immediately serviced.
It illuminates when you switch the ignition
on prior to engine start to check the bulb
and to indicate whether your vehicle is
ready for Inspection and Maintenance
(I/M) testing.
Normally, it illuminates until the engine is
cranked and automatically turns off if no
malfunctions are present. However, if after
15 seconds it flashes eight times, this
indicates that your vehicle is not ready for
Inspection and Maintenance (I/M) testing.
See Catalytic Converter (page 103).
Stability Control and Traction
Control Indicator
(If Equipped) Flashes during operation. If it does not illuminate when you switch
the ignition on, or remains on when the
engine is running, this indicates a
malfunction. Have your vehicle checked
as soon as possible (Air brakes only).
Traction Control
(If Equipped) Flashes slowly when you disable
traction control. It rapidly flashes
during a traction control event
(Hydraulic brakes only).
Traction Control System Off
(If
Equipped) Illuminates when you switch the
system off (Air brakes only).
Trailer Anti-Lock Brake System
(ABS) Illuminates briefly when you
switch on the ignition, and only
when a PLC trailer or a PLC
diagnostic tool is connected. If the light
fails to illuminate, remains on after you
start the vehicle or continues to flash, have
the system serviced immediately.
Transmission Tow/Haul
(If Equipped) Illuminates when you switch on
the tow/haul feature. If the light
flashes steadily, have the system
serviced immediately, damage to the
transmission could occur.
Two Speed Axle
(If Equipped) The Two Speed Axle indicator
comes on when you switch the
low axle range on.
62
F650750 (TBC) , enUSA, Edition date: 201804, Second-Printing Instrument Cluster E138639 E138639 E194301 E209040 E161509 E208809

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). LIMITED SLIP DIFFERENTIAL
(IF EQUIPPED) WARNING:
If both wheels are not
raised off the ground, the one wheel that
is not raised may pull the vehicle off its
support, possibly resulting in personal
injury.
This axle provides added traction on
slippery surfaces, particularly when one
wheel is on a poor traction surface. Under
normal conditions, the limited-slip axle
functions like a standard rear axle. The axle
may exhibit a slight noise or vibration
during tight turns with low vehicle speed.
This is normal behavior and indicates the
axle is working.
Both wheels must be raised off the ground
should it be necessary to operate one
wheel with your vehicle stationary.
ELECTRONIC LOCKING
DIFFERENTIAL
(IF EQUIPPED)
Driver-Controlled Locking
Differential
Note: Never use the differential lock at
vehicle speeds above
25 mph (40 km/h).
Some drive axles have a driver-controlled
differential lock. The differential lock can
lock or unlock the differential when your
vehicle is moving or stopped. When extra
traction is required, the differential lock
provides full power to both wheels.
When you lock the differential, your
vehicle ’s turning radius increases
(under-steer).
Take care to avoid sudden accelerations
when both drive wheels are on a slippery
surface.
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F650750 (TBC) , enUSA, Edition date: 201804, Second-Printing Rear Axle

WARNING: Sudden accelerations
on slippery surfaces could cause the
wheels to spin, the vehicle to turn
sideways on a crowned road surface or
in a turn, possibly resulting in loss of
vehicle control and personal injury.
Activating the Locking Differential
You can lock and unlock the differential
when your vehicle is moving at a constant
speed of less than 25 mph (40 km/h) and
while the wheels are not slipping. Do not
lock the differential when your vehicle is
traveling down steep grades and when
traction is minimal.
The differential lock and differential lock
light automatically disengage at speeds
above 25 mph (40 km/h). The differential
lock remains off until either you restart your
vehicle or you turn the differential lock
switch off then back on.
Servicing a Vehicle with a Locking
Differential
Turn the engine off and raise all drive
wheels of the locker differential axle in
order to prevent your vehicle from moving
when servicing the wheels, tires or brakes.
Axles equipped with a driver-controlled
differential deliver power to both wheels
even when only one wheel is on the ground. WARNING: Failure to raise all drive
wheels with this type of differential could
cause the vehicle to move unexpectedly,
resulting in property damage, personal
injury or death. 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 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.
121
F650750 (TBC) , enUSA, Edition date: 201804, Second-Printing Rear AxleE208228

PRINCIPLE OF OPERATION
The traction control system helps avoid
drive wheel spin and loss of traction.
If your vehicle begins to slide, the system
applies the brakes to individual wheels
and, when needed, reduces engine power
at the same time. If the wheels spin when
accelerating on slippery or loose surfaces,
the system reduces engine power in order
to increase traction.
Note:
The system does not apply the brakes
when vehicle speed is above 25 mph
(40 km/h).
USING TRACTION CONTROL -
VEHICLES WITH: AIR BRAKES WARNING:
The stability and
traction control light illuminates steadily
if the system detects a failure. Make sure
you did not manually disable the traction
control system using the information
display controls or the switch. If the
stability control and traction control light
is still illuminating steadily, have the
system serviced by an authorized dealer
immediately. Operating your vehicle with
the traction control disabled could lead
to an increased risk of loss of vehicle
control, vehicle rollover, personal injury
and death.
Press the TCS Off button to enable the
mud/snow mode.
This is beneficial when your vehicle is stuck
in snow or on a slippery road surface. This
mode allows wheel spin to dig your vehicle
out and allows you to rock your vehicle.
Press the switch again to select standard
traction control. The system automatically
selects standard traction control at the
next ignition cycle. System Indicator Light
Note:
If the traction control light does not
flash during a traction control event or stays
illuminated, the system is not functioning
properly. Take your vehicle to an authorized
dealer for service.
During traction control operation, the
traction control light flashes rapidly and
the engine does not rev-up when you press
further on the accelerator. This is normal
and is no reason for concern.
In Mud/Snow mode, the TCS OFF light
illuminates on the instrument cluster. If a
traction event occurs in either mode, the
Stability Control and Traction Control light
flashes rapidly.
USING TRACTION CONTROL -
VEHICLES WITH: HYDRAULIC
BRAKES WARNING:
Aggressive driving in
any road conditions can cause you to
lose control of your vehicle increasing
the risk of severe personal injury or
property damage. The occurrence of a
traction control event is an indication
that at least some of the tires have
exceeded their ability to grip the road;
this may lead to an increased risk of loss
of vehicle control, vehicle rollover,
personal injury and death. If you
experience a severe road event, SLOW
DOWN.
The system automatically turns on each
time you switch the ignition on.
Use the traction control switch on the
instrument panel to switch the system off
or on.
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F650750 (TBC) , enUSA, Edition date: 201804, Second-Printing Traction Control
(If Equipped)

If your vehicle is stuck in mud or snow,
switching traction control off may be
beneficial as this allows the wheels to spin.
Press the switch again to enable the
traction control system.
System Indicator Light
Note:
If the traction control light does not
flash during a traction control event or stays
illuminated, the system is not functioning
properly. Take your vehicle to an authorized
dealer for service.
During traction control operation, the
traction control light flashes rapidly and
the engine does not rev-up when you press
further on the accelerator. This is normal
and is no reason for concern.
When traction control is disabled, the
traction control light illuminates and
flashes slowly.
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PRINCIPLE OF OPERATION
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.
• The stability control and traction
control systems do not enhance your
vehicle's ability to maintain traction of
the wheels.
Vehicles With: Air Brakes
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 133).
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F650750 (TBC) , enUSA, Edition date: 201804, Second-Printing Stability Control
(If Equipped)