FORD SUPER DUTY 2021 Owners Manual

Switching the Heated Seat Settings On and
Off........................................................................\
. 141
Switching the Heated Steering Wheel Settings On and Off....................................... 141
Removing the Tailgate..................................72
Repairing Minor Paint Damage..............399
Replacement Parts Recommendation........................................16
Collision Repairs.................................................... 16
Scheduled Maintenance and Mechanical Repairs................................................................. 16
Warranty on Replacement Parts.................... 16
Replacing a Lost Key or Remote Control
............................................................60
Replacing the Cabin Air Filter..................150
Reporting Safety Defects (Canada Only)..............................................................337
Reporting Safety Defects (U.S. Only)..............................................................337
Resuming the Set Speed..........................243
Roadside Assistance
..................................325
Vehicles Sold in Canada: Getting Roadside
Assistance....................................................... 326
Vehicles Sold in the United States: Getting Roadside Assistance................................... 325
Vehicles Sold in the United States: Using Roadside Assistance................................... 325
Roadside Emergencies..............................325
Running-In See: Breaking-In................................................. 320
Running Out of Fuel....................................189
S
Safety Canopy ™
.............................................52
Safety Precautions......................................184
Satellite Radio
..............................................484
Satellite Radio Electronic Serial Number
(ESN)................................................................ 485
Satellite Radio Reception Factors..............485
SiriusXM Satellite Radio Service.................485
Troubleshooting................................................ 486
Scheduled Maintenance
..........................565
Seatbelt Extensions......................................44
Seatbelt Height Adjustment......................42
Seatbelt Reminder........................................43
Belt-Minder™........................................................ 43Seatbelts...........................................................38
Principle of Operation........................................ 38
Seatbelt Warning Lamp and Indicator Chime...............................................................42
Conditions of operation..................................... 42
Seats...................................................................151
Security..............................................................76
Selective Catalytic Reductant System - Diesel..............................................................197
Contaminated Diesel Exhaust Fluid or Inoperative Selective Catalytic Reduction
System............................................................... 201
Diesel Exhaust Fluid Guidelines and Information..................................................... 200
Diesel Exhaust Fluid Level............................... 197
Diesel Exhaust Fluid Warning Messages and Vehicle Operations............................... 199
Filling the Diesel Exhaust Fluid Tank..........198
Settings...........................................................543 911 Assist............................................................... 543
Ambient Lighting............................................... 544
Audio...................................................................... 543
Automatic Updates.......................................... 543
Bluetooth.............................................................. 543
Charge Settings................................................. 544
Clock....................................................................... 543
Display................................................................... 544
Driver Assist......................................................... 543
FordPass............................................................... 543
General.................................................................. 543
Message Center................................................. 544
Mobile Apps......................................................... 543
Multi Contour Seats.......................................... 544
Navigation............................................................ 544
Personal Profiles................................................ 544
Phone..................................................................... 543
Seats...................................................................... 544
Sound..................................................................... 543
Valet Mode........................................................... 544
Vehicle................................................................... 543
Voice Control....................................................... 544
Setting the Blower Motor Speed............144
Setting the Cruise Control Speed..........242 Changing the Set Speed................................. 242
Setting the Temperature...........................144
Setting the Trail Control Speed...............231
Side Airbags......................................................51
Sitting in the Correct Position...................151
658
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Second-Printing Index

Sliding Windows............................................99
Power Sliding Back Window........................... 99
Snow Chains See: Using Snow Chains................................. 420
Snow Plowing................................................321
Engine temperature while plowing.............323
Installing the Snowplow.................................. 321
Operating the Vehicle with the Snowplow Attached........................................................... 322
Snowplowing with your Airbag Equipped Vehicle............................................................... 322
Transmission operation while plowing............................................................. 323
Spare Wheel See: Changing a Road Wheel....................... 429
Special Notices
................................................16
New Vehicle Limited Warranty........................ 16
On Board Diagnostics Data Link Connector........................................................... 16
Special Instructions............................................. 16
Using a Slide-In Camper..................................... 17
Using your Vehicle as an Ambulance.............17
Using your Vehicle as a Stationary Power Source................................................................... 17
Using your Vehicle With a Snowplow............17
Special Operating Conditions Scheduled Maintenance...............................................574
Diesel Engine........................................................ 577
Exceptions............................................................ 582
Gasoline Engine.................................................. 574
Speed Control See: Cruise Control............................................ 242
Spot Lamps.....................................................90
Spring U-Bolt Check - F-600.................389 U-bolt Nut Torque............................................. 390
Stability Control
...........................................228
Principle of Operation...................................... 228
Starter Switch See: Ignition Switch............................................ 174
Starting a Diesel Engine - 6.7L Diesel...............................................................177
Automatic Engine Shutdown......................... 179
Cold Weather Operation.................................. 179
Cold Weather Starting...................................... 179
Diesel Engine Fast Start Glow Plug System............................................................... 178
Vehicles with an Ignition Key.......................... 178
Vehicles with Keyless Start............................. 178Starting a Gasoline Engine - 6.2L/
7.3L...................................................................175
Automatic Engine Shutdown......................... 176
Cold Weather Starting (Flexible Fuel Vehicles Only).................................................. 177
Failure to Start..................................................... 176
Guarding Against Exhaust Fumes.................177
Important Ventilating Information................177
Stopping the Engine When Your Vehicle is Moving................................................................ 176
Stopping the Engine When Your Vehicle is Stationary......................................................... 176
Vehicles with an Ignition Key.......................... 175
Vehicles with Keyless Start............................. 176
Starting and Stopping the Engine..........174 General Information........................................... 174
Steering...........................................................262 Adaptive Learning............................................. 263
Adaptive Steering.............................................. 263
Electronic Torque Overlay Steering............262
Hydraulic Power Steering............................... 262
Steering Wheel
...............................................80
Storage Compartments..............................171
Sunroof See: Moonroof..................................................... 100
Sun Visors
.......................................................100
Illuminated Vanity Mirror................................. 100
Supplementary Restraints System.........45 Principle of Operation........................................ 45
Switching Air Conditioning On and Off....................................................................143
Switching Automatic High Beam Control On and Off.....................................................93
Activating the Automatic High Beam Control ................................................................. 93
Switching Climate Control On and Off....................................................................143
Switching Cruise Control On and Off
...................................................................242
Switching Cruise Control Off......................... 242
Switching Cruise Control On......................... 242
Switching Maximum Cooling On and Off....................................................................143
Switching Maximum Defrost On and Off....................................................................143
Switching Off the Engine - 6.7L Diesel..............................................................182
659
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Second-Printing Index

Switching Rear Occupant Alert System
On and Off - Vehicles With: SYNC
3........................................................................\
162
Semiannual Reminder...................................... 162
Switching Rear Occupant Alert System On and Off - Vehicles With:
SYNC..............................................................163
Semiannual Reminder...................................... 163
Switching Recirculated Air On and Off....................................................................143
Switching the Heated Mirrors On and Off...................................................................144
Switching the Heated Rear Window On and Off..........................................................144
Switching the Heated Wiper Park On and Off...................................................................144
Switching Trail Control On and Off........231
Symbols Glossary
.............................................9
SYNC™ 3.........................................................513
General Information.......................................... 513
SYNC™ 3 Troubleshooting
......................545
Additional Information and
Assistance........................................................ 557
Apps........................................................................\
552
Navigation............................................................. 551
Personal Profiles................................................ 555
Phone..................................................................... 549
Resetting the System....................................... 557
USB and Bluetooth Audio.............................. 546
Voice Recognition.............................................. 545
Wi-Fi Connectivity............................................. 554
SYNC™ Applications and Services.......................................................500
911 Assist.............................................................. 500
SYNC Mobile Apps............................................ 502
SYNC™...........................................................496 General Information......................................... 496
SYNC™ Troubleshooting.........................504
T
Tailgate Lock
.....................................................71
Tailgate Step.....................................................72
Closing the Step.................................................... 73
Opening the Step................................................. 73
Tailgate................................................................71
Technical Specifications See: Capacities and Specifications.............441 Terrain Control
..............................................232
Principle of Operation...................................... 232
The Better Business Bureau (BBB) Auto Line Program (U.S. Only)
.......................334
Tire Care.........................................................404
Glossary of Tire Terminology........................ 405
Information About Uniform Tire Quality Grading............................................................. 404
Information Contained on the Tire Sidewall........................................................... 406
Temperature A B C........................................... 405
Traction AA A B C.............................................. 404
Treadwear............................................................ 404
Tire Pressure Monitoring System............421 Trailer Tire Pressure Monitoring
System.............................................................. 428
Vehicle Tire Pressure Monitoring System............................................................... 421
Tires See: Wheels and Tires..................................... 402
Towing a Trailer
............................................282
Load Placement................................................. 282
Towing Points...............................................330
Towing the Vehicle on Four Wheels...........................................................314
Emergency Towing............................................. 314
Recreational Towing.......................................... 314
Towing..............................................................282
Traction Control
............................................227
Principle of Operation....................................... 227
Trail Control Indicators................................231
Trail Control
.....................................................231
Trailer Reversing Aids.................................283 Conventional Trailer Setup............................ 285
Fifth Wheel and Gooseneck Trailer Setup................................................................. 288
Positioning Your Vehicle and Trailer...........284
Pro Trailer Backup Assist With Trailer Reverse Guidance......................................... 283
Setting Up the System.................................... 285
Troubleshooting - Conventional Trailer................................................................. 292
Troubleshooting - Fifth Wheel and Gooseneck Trailer......................................... 297
Using Pro Trailer Backup Assist................... 289
Using Trailer Reverse Guidance................... 290
Trailer Sway Control
...................................300
660
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Second-Printing Index

Transfer Case Fluid Capacity and
Specification..............................................466
Transfer Case Fluid Check.........................377
Transmission.................................................207
Transporting the Vehicle
...........................329
U
Under Hood Overview - 6.2L...................349
Under Hood Overview - 6.7L Diesel............................................................350
Under Hood Overview - 7.3L.....................351
Under Seat Storage
.......................................171
Front Under Seat Storage Compartment -
Vehicles With Locking Storage.................. 172
Front Under Seat Storage Compartment - Vehicles Without Locking Storage............171
Rear Under Seat Storage.................................. 172
Universal Garage Door Opener...............164 HomeLink Wireless Control System...........164
USB Port
.........................................................487
Locating the USB Ports................................... 487
Using Adaptive Cruise Control................243 Automatic Cancellation................................... 247
Blocked Sensor.................................................. 248
Canceling the Set Speed................................ 246
Changing the Set Speed................................. 246
Detection Issues................................................. 247
Following a Vehicle........................................... 244
Hilly Condition and Trailer Tow Usage................................................................. 247
Overriding the Set Speed............................... 246
Resuming the Set Speed................................ 246
Setting the Adaptive Cruise Speed............244
Setting the Gap Distance............................... 245
Switching Adaptive Cruise Control Off....................................................................... 247
Switching Adaptive Cruise Control On....................................................................... 244
Switching to Normal Cruise Control...........249
System Not Available...................................... 248
Using Four-Wheel Drive.............................213 4WD Indicator Lights......................................... 213
Driving Off-Road With Truck and Utility Vehicles............................................................. 216
Electronic Shift-On-the-Fly (ESOF) 4WD system................................................................ 213Entering and Exiting Rock Crawl Mode with
Tremor Package............................................. 215
How Your Vehicle Differs from Other Vehicles............................................................. 216
Operating 4WD Vehicles with Spare or Mismatched Tires.......................................... 215
Using the Electronic Shift on the Fly 4WD system................................................................ 214
Using Hill Descent Control.......................232 Hill Descent Modes........................................... 232
Using MyKey With Remote Start Systems..........................................................64
Using Power Running Boards....................78 Automatic Power Deploy.................................. 78
Automatic Power Stow...................................... 78
Bounce-back.......................................................... 79
Enabling and Disabling...................................... 79
Manual Power Deploy........................................ 78
Using Snow Chains.....................................420
Using Stability Control...............................229 AdvanceTrac® with Roll Stability Control ™
(RSC®)............................................................. 229
Using SYNC™ With Your Media Player............................................................503
Audio Voice Commands................................. 504
Media Sources.................................................... 503
Using SYNC™ With Your Phone...........499 Accessing Features through the Phone
Menu................................................................. 500
Pairing a Phone.................................................. 499
Phone Controls.................................................. 500
Phone Voice Commands............................... 499
Using Traction Control................................227 Switching the System Off............................... 227
System Indicator Lights and Messages.......................................................... 227
Using Voice Recognition
...........................497
Apps....................................................................... 520
Automatic Blower Motor Speed Reduction.......................................................... 521
Climate.................................................................... 517
Entertainment..................................................... 516
General................................................................... 515
Initiating a Voice Session................................ 497
Navigation............................................................. 519
Phone...................................................................... 518
SiriusXM Traffic and Travel Link................... 520
System Interaction and Feedback.............498
661
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Second-Printing Index

Voice Settings......................................................
521
Utilizing the Mediation/Arbitration Program (Canada Only)........................335
V
Vehicle Care
....................................................391
General Information.......................................... 391
Vehicle Identification Number
................473
Locating the Vehicle Identification
Number............................................................. 473
Vehicle Identification Number Overview........................................................... 473
Vehicle Identification
..................................473
Vehicle Identification Number...................... 473
Vehicle Storage
............................................399
Body....................................................................... 399
Brakes................................................................... 400
Cooling system.................................................. 400
Disconnecting Your 12 Volt Battery............400
Engine................................................................... 400
Fuel system......................................................... 400
General.................................................................. 399
Miscellaneous.................................................... 400
Removing Vehicle From Storage................400
Tires....................................................................... 400
Vehicle Wi-Fi Hotspot
................................478
Ventilated Seats............................................161
Ventilation See: Climate Control - Vehicles With:
Automatic Temperature Control.............143
See: Climate Control - Vehicles With: Manual Temperature Control.................................... 147
Voice Control
...................................................82
W
Warning Lamps and Indicators...............105 Adaptive Cruise Control................................... 105
Adaptive Steering............................................... 105
Anti-Lock Braking System.............................. 105
Automatic High Beam...................................... 105
Battery.................................................................... 106
Blind Spot Monitor............................................ 106
Brake System Warning Lamp........................ 106
Check 4X4............................................................ 106
Check Fuel Cap................................................... 106
Cruise Control...................................................... 106Diesel Engine Brake...........................................
106
Diesel Exhaust Fluid.......................................... 106
Direction Indicator.............................................. 107
Door Ajar................................................................ 107
Electronic Locking Differential....................... 107
Engine Coolant Temperature......................... 107
Engine Oil............................................................... 107
Fasten Seatbelt................................................... 107
Four-Wheel Drive Indicators.......................... 109
Front Airbag.......................................................... 107
Front Fog Lamps................................................. 107
High Beam............................................................. 107
Hill Descent........................................................... 107
Low Fuel Level..................................................... 107
Low Tire Pressure Warning.............................. 107
Powertrain Malfunction/Reduced Power/Electronic Throttle Control.........108
Service Engine Soon......................................... 108
Stability Control.................................................. 108
Stability Control Off.......................................... 108
Tailgate Ajar......................................................... 108
Transmission Tow/Haul................................... 108
Wait To Start........................................................ 108
Water In Fuel........................................................ 108
Washer Fluid Check....................................382
Washer Fluid Specification.......................461
Washers See: Cleaning the Exterior.............................. 392
See: Wipers and Washers................................. 85
Waxing.............................................................393
What Is Automatic High Beam Control............................................................93
What Is Cruise Control...............................242 Requirements...................................................... 242
What Is Remote Start.................................140
What Is the Cabin Air Filter.......................150
What Is the Gross Axle Weight Rating.............................................................272
GAWR (Gross Axle Weight Rating).............272
What Is the Gross Combined Weight Rating.............................................................273
What Is the Gross Vehicle Weight Rating.............................................................272
What Is the Maximum Loaded Trailer Weight...........................................................272
What is the Rear Occupant Alert System...........................................................162
What Is Trail Control....................................231
662
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Second-Printing Index

Wheel Nuts
See: Changing a Road Wheel....................... 429
Wheels and Tires.........................................402
General Information......................................... 402
Technical Specifications................................ 440
Windows and Mirrors...................................95
Windshield Washers.....................................86
Windshield Wipers........................................85 Speed Dependent Wipers................................ 85
Wiper Blades See: Checking the Wiper Blades.................. 382
Wipers and Washers
.....................................85
Wireless Accessory Charger.....................169
663
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Second-Printing Index