
UNDER HOOD OVERVIEW - 6.8L, GASOLINE
Engine compartment fuse box. See Locating the Under Hood Fuse Box (page430).A
Battery. See Changing the 12V Battery (page 457).B
Engine oil dipstick. See Engine Oil Dipstick Overview (page 444).C
Engine oil filler cap. See Checking the Engine Oil Level (page 444).D
Brake fluid reservoir. See Checking the Brake Fluid (page 249).E
Windshield washer fluid reservoir. See Adding Washer Fluid (page 115).F
Engine coolant reservoir. See Checking the Coolant Level (page 450).G
Power steering fluid reservoir. See Checking the Hydraulic Power SteeringFluid (page 280).H
Air cleaner assembly. See Changing the Engine Air Filter (page 445).I
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2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMMaintenanceE398419

UNDER HOOD OVERVIEW - 7.3L, GASOLINE
Under hood fuse box. See Accessing the Under Hood Fuse Box (page 430).A
Battery. See Changing the 12V Battery (page 457).B
Engine oil dipstick. See Engine Oil Dipstick Overview (page 444).C
Engine oil filler cap. See Adding Engine Oil (page 444).D
Brake fluid reservoir. See Checking the Brake Fluid (page 249).E
Windshield washer fluid reservoir. See Adding Washer Fluid (page 115).F
Engine coolant reservoir. See Checking the Coolant Level (page 450).G
Power steering fluid reservoir. See Checking the Hydraulic Power SteeringFluid (page 280).H
Air cleaner assembly. See Changing the Engine Air Filter (page 445).I
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Rear suspension components may requireregular cleaning with a power washer or athorough rinse with a strong stream ofwater if the vehicle is operated in dusty ormuddy environments. Rear leaf springs orother suspension components may emitsqueaking or popping noises whileoperating the vehicle if particles, such asdirt, rocks, or other debris, are present inthe components.
CLEANING THE EXHAUST
WARNING: Do not modify orremove the exhaust tailpipe. Blockedholes may result in increased exhaustgas temperatures, vehicle damage,property damage or personal injury.
WARNING: Failure to keep theholes in the exhaust tailpipe clean andfree of debris or foreign material mayresult in blocked holes. Blocked holesmay result in increased exhaust gastemperatures, vehicle damage, propertydamage or personal injury.
WARNING: The normal operatingtemperature of the exhaust system isvery high. Never work around or attemptto repair any part of the exhaust systemuntil it has cooled. Use special care whenworking around the diesel oxidationcatalytic converter or the dieselparticulate filter. The diesel oxidationcatalytic converter and the dieselparticulate filter heat up to very hightemperatures after only a short periodof engine operation and remain hot afteryou switch the engine off.
The visible holes in the exhaust tip and theholes under the shield just inboard of theright rear tire(s) are functional. Keep theholes clear of mud, debris or foreignmaterial to maintain proper function of theexhaust system. Clean and remove debrisor foreign material if present as needed.Spraying with a hose during regularwashing of vehicle should help keep holesclean and clear of debris or foreignmaterial.
CLEANING THE INTERIOR
CLEANING THE INSTRUMENTPANEL
WARNING: Do not use chemicalsolvents or strong detergents whencleaning the steering wheel orinstrument panel to avoid contaminationof the airbag system.
We recommend that you only clean theinstrument panel and cluster lens with adamp soft cloth. Dry the area with a clean,soft cloth.
For additional information and assistance,we recommend that you contact anauthorized dealer.
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cause steering, suspension, axle, transfercase or power transfer unit failure.Follow the recommended tire inflationpressures found on the SafetyCompliance Certification label, or theTire Label on the B-Pillar or the edge ofthe driver door. Failure to follow thisinstruction could result in loss of vehiclecontrol, vehicle rollover, or personal injuryor death.
Note:Do not use snow chains on vehicleswith LT275/65R20 or LT 285/75R18 sizedtires.
Note:The suspension insulation andbumpers will help prevent vehicle damage.Do not remove these components from yourvehicle when using snow tires and chains.
The tires on your vehicle have all-weathertreads to provide traction in rain and snow.However, in some climates, you may needto use snow tires and cables. If you needto use cables, we recommend that you usesteel wheels of the same size andspecification, as cables may chipaluminum wheels.
Follow these guidelines when using snowtires and chains:
•If possible, avoid fully loading yourvehicle.
•Use only SAE Class S chains.
•Install chains securely, verifying thatthe chains do not touch any wiring,brake lines or fuel lines.
•Only install snow chains on the rearaxle.
•For Dual Rear Wheel (DRW) vehicles,only install snow chains on the outerwheel of each pair.
•Drive cautiously. If you hear the chainsrub or bang against your vehicle, stopand retighten the chains. If this doesnot work, remove the chains to preventdamage to your vehicle.
•Remove the tire chains when you nolonger need them. Do not use tirechains on dry roads.
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Materials
SpecificationName
EST-M2C118-AMotorcraft® Additive Friction Modifier(U.S.)Motorcraft® Additive Friction Modifier / Additifmodificateur de friction Motorcraft®(Canada)XL-3(U.S.)CXL-3(Canada)
WSL-M2C192-AMotorcraft® SAE 75W-140 Synthetic Rear AxleLubricant(U.S.)Motorcraft® SAE 75W-140 Synthetic Rear AxleLubricant / Lubrifiant synthétique pour pont arrièreSAE 75W-140 Motorcraft®(Canada)XY-75W140-QL(U.S.)CXY-75W140-1L(Canada)
HYDRAULIC POWER
STEERING FLUID CAPACITY
AND SPECIFICATION
Use fluid that meets the definedspecification.
If you do not use fluid that meets thedefined specification, it could result in:
•Component damage that your vehiclewarranty does not cover.
•Reduced vehicle performance.
Capacities
QuantityVariant
Fill as required.All.
Materials
SpecificationName
WSS-M2C938-AMERCON® LV,Motorcraft® MERCON® LV Automatic TransmissionFluid(U.S.)Motorcraft® MERCON® LV Automatic TransmissionFluid / Huile pour boîte automatique MERCON® LVMotorcraft®(Canada)XT-10-QLVC(U.S.)CXT-10-LV6(Canada)
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Vehicle Software Update
See Software Update Indicators (page583).
Wireless Accessory Charger
Wireless accessory chargeractive.
FEATURE BAR
The feature bar is located on the bottomof the display and allows you to accessvehicle features.
Press to use the radio, a USB, amedia player or a Bluetooth®device.
Press to make calls and accessthe phonebook on your cellphone.
Press to use the navigationsystem.
Press to replace this button witha shortcut to a feature or setting.
Press to search for and usecompatible apps on your iOS orAndroid device.
Press to adjust system settings.
Press to view features.
Note:The icon may be different dependingon your vehicle.
INFORMATION ON DEMAND
SCREEN
The information on demand screendisplays cards on the side of the displayand allows you to see information fromdifferent features.
Press the button to view the nextcard.
Press the button to view theprevious card.
Press the button to viewavailable cards.
On some screens, you can swipe a cardtoward the center of the screen to movethe content into the main screen.
REBOOTING THE CENTER
DISPLAY
You can reboot the center display usingthe controls on the steering wheel.
1.Simultaneously press and hold theseek forward and audio system powerbutton for 10 seconds.
CENTER DISPLAY OVERVIEW
VIDEOS
SYNC® 4 — Super Duty® Basic Interactions
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Adjusting the Seatbelts DuringPregnancy......................................................53Adjusting the Sound Settings.................554Adjusting the Steering Wheel - VehiclesWith: Manual Adjustable SteeringColumn..........................................................109Adjusting the Steering Wheel - VehiclesWith: Power Adjustable SteeringColumn..........................................................109Adjusting the Volume................................554Aid Mode..........................................................319How Does Aid Mode Work..............................319What Is Aid Mode...............................................319Airbag Precautions........................................59Airbags................................................................57Air ConditioningSee: Climate Control - Vehicles With:Automatic Temperature Control..............152See: Climate Control - Vehicles With: ManualTemperature Control....................................156Air Conditioning System Capacity andSpecification..............................................536Alert and Aid Mode......................................319How Does Alert and Aid Mode Work...........319What Is Alert and Aid Mode............................319Alert Mode.......................................................318Adjusting the Steering Wheel VibrationIntensity.............................................................319How Does Alert Mode Work...........................318What Is Alert Mode............................................318Alexa Built-In.................................................567Alexa Built-In Requirements....................567Alexa Built-In Settings...............................567AM/FM Radio................................................555AM/FM Radio Limitations..............................555Selecting a Radio Station...............................555Ambient Lighting...........................................127Adjusting Ambient Lighting.............................127Switching Ambient Lighting On andOff........................................................................127Anti-Lock Braking System........................249Anti-Lock Braking SystemLimitations......................................................249Anti-Theft Alarm System..........................103Arming the Anti-Theft Alarm System........104Disarming the Anti-Theft AlarmSystem..............................................................104
How Does the Anti-Theft Alarm SystemWork...................................................................103What Are the Inclination Sensors................104What Are the Interior Sensors.......................103What Is the Anti-Theft AlarmSystem...............................................................103What Is the Battery Backup Alarm..............104What Is the Perimeter Alarm.........................103Anti-Theft Alarm System Settings........104Setting the Alarm Security Level..................104Switching Ask on Exit On and Off................104What are the Alarm Security Levels...........104What Is Ask on Exit............................................104Appendices....................................................703Applying the Electric ParkingBrake..............................................................253Applying the Electric Parking Brake in anEmergency...................................................253App Precautions...........................................575App Requirements.......................................575Apps..................................................................575Audio System................................................553AM/FM Radio......................................................555Audio System – Troubleshooting................559Digital Radio........................................................556Satellite Radio.....................................................557Audio System Precautions.......................553Audio System – Troubleshooting.........559Audio System – InformationMessages.........................................................559Auto-Dimming Interior Mirror....................131Auto-Dimming Interior MirrorLimitations.........................................................131What Is the Auto-Dimming InteriorMirror....................................................................131Auto Hold.......................................................266Auto Hold Indicators..................................266Autolamps.......................................................118Autolamp Settings..............................................118What Are Autolamps.........................................118Autolock............................................................82Autolock Requirements.....................................82What Is Autolock..................................................82Automatically Releasing the ElectricParking Brake.............................................254Automatic Crash Shutoff..........................423Automatic Crash ShutoffPrecautions.....................................................423
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How Does the Selective CatalyticReduction System Work........................226How Does the Speed Limiter Work.......316How Does Traction Control Work.........268How Does Trailer Backup AssistanceWork..............................................................386How Does Trailer Hitching AssistanceWork...............................................................378How Does Trailer Reverse GuidanceWork...............................................................401How Does Trailer Sway ControlWork...............................................................377How Do Personal Profiles Work..............577How Do the Front Airbags Work...............57How Do the Side Airbags Work.................57Hydraulic Power Steering Fluid Capacityand Specification.....................................546Hydraulic Power Steering.........................279Checking the Hydraulic Power SteeringFluid...................................................................280Hydraulic Power Steering Guidelines.........279Locating the Hydraulic Power Steering FluidReservoir..........................................................280
I
Icon GlossarySee: Symbols Glossary.......................................23IconsSee: Symbols Glossary.......................................23Identifying Fuse Types...............................439Identifying the Audio Unit........................553Identifying the Auxiliary SwitchWiring............................................................587Identifying the Climate ControlUnit..................................................................152Idle Timer........................................................207How Does Idle Timer Work.............................207Idle Timer Precautions....................................208Idle Timer Settings...........................................208What is Idle Timer..............................................207Ignition Switch..............................................202Inflating the Tires........................................490Information On Demand Screen...........564Information on the Tire Sidewall...........479Inspecting the Tire for Damage.............494Inspecting the Tire for Wear....................494
Inspecting the Wheel ValveStems...........................................................498Installing Child Restraints..........................40Attaching the Front Seat Tether Strap........45Attaching the Rear Seat Tether Strap..........46Combining the Seatbelt and Lower Anchorsfor Attaching Child Restraints....................45Installing a Child Restraint in a CenterSeat......................................................................44Using Lower Anchors and Tethers forChildren...............................................................44Using Seatbelts....................................................40Using Tether Straps.............................................45Instrument Cluster Display.......................143Instrument Cluster Display Main Menu -Vehicles With: 12 Inch Screen...............144Instrument Cluster Display Main Menu -Vehicles With: 8 Inch Screen.................143Instrument Cluster Indicators..................140Instrument Cluster.......................................136Fuel Gauge.............................................................137Instrument Cluster Overview - VehiclesWith: 12 Inch Screen..................................137Instrument Cluster Overview - VehiclesWith: 8 Inch Screen...................................136Instrument Cluster WarningLamps............................................................139Instrument Panel............................................32Integrated Trailer Brake Controller.........372Integrated Trailer Brake Controller –Troubleshooting.............................................375Integrated Trailer Brake ControllerPrecautions..................................................372Integrated Trailer Brake Controller –Troubleshooting........................................375Integrated Trailer Brake Controller –Frequently Asked Questions.....................376Integrated Trailer Brake Controller –Information Messages.................................375Integrated Trailer Brake ControllerVideos............................................................376Intentionally Exceeding the Set SpeedLimit................................................................316Interior Air Quality........................................160Interior Bulbs................................................468Interior Bulb Specification Chart.................468Interior Fuse Box..........................................435Accessing the Interior Fuse Box...................435
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2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMIndex