2023 FORD SUPER DUTY transmission

SLIPPERY - 4X4
For less than ideal roadconditions such as snow or icecovered roads. Use this mode forcrossing terrain where loose or slipperymaterials cover a firm surface. Slipperymode lowers throttle response andoptimizes shifting for slippery surfaces.
Four-wheel drive high is the defaultfour-wheel drive mode. All four-wheel drivemodes are selectable in slippery mode.
The electronic locking differential isavailable below 25 mph (40 km/h). SeeSwitching the Electronic LockingDifferential On and Off (page 245).
Note:Do not use this mode when drivingon dry pavement. This could cause drivelinebind up and damage the system dependingon the four-wheel drive mode selection.See Four-Wheel Drive (page 238).
Note:Depending on your vehicle options,some mode names can appear different ornot at all.
SLIPPERY - 4X2
For less than ideal roadconditions such as snow or icecovered roads. Use this mode forcrossing terrain where loose or slipperymaterials cover a firm surface. Slipperymode lowers throttle response andoptimizes shifting for slippery surfaces.
The electronic locking differential isavailable below 25 mph (40 km/h). SeeSwitching the Electronic LockingDifferential On and Off (page 247).
Note:Do not use this mode when drivingon dry pavement. This could cause drivelinebind up and damage the system dependingon the four-wheel drive mode selection.See Four-Wheel Drive (page 238).
Note:Depending on your vehicle options,some mode names can appear different ornot at all.
TOW/HAUL - 4X4
For improved vehicle operationwhen towing a trailer or haulinga heavy load. This mode movesupshifts to higher engine speeds to reducethe frequency of transmission shifting. Italso provides downshift engine braking toassist in maintaining vehicle speed whendescending a slope. Depending on yourvehicle's options, this mode enhancessteering response to assist in controllingyour vehicle when towing a trailer orhauling a heavy load.
Note:All four-wheel drive modes areselectable in tow/haul mode. This modedoes not default to a certain four-wheeldrive mode.
Note:The electronic locking differential isavailable in this mode. See Switching theElectronic Locking Differential On andOff (page 245).
TOW/HAUL - 4X2
For improved vehicle operationwhen towing a trailer or haulinga heavy load. This mode movesupshifts to higher engine speeds to reducethe frequency of transmission shifting. Italso provides downshift engine braking toassist in maintaining vehicle speed whendescending a slope. This mode enhancessteering response to assist in controllingyour vehicle when towing a trailer orhauling a heavy load.
Note:The electronic locking differential isavailable in this mode. See Switching theElectronic Locking Differential On andOff (page 247).
313
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMDrive Mode ControlE295414 E295414 E246592 E246592

TRAIL - 4X2
This mode is used for muddy,rutted, soft or uneven terrain.This mode lowers acceleratorpedal response to allow for better controlwhen in low speed off-road environments.The transmission shift points change tomaximize low end torque. Traction andstability controls are also optimized to helpyour vehicle maintain forward momentum.
The electronic locking differential isavailable. See Switching the ElectronicLocking Differential On and Off (page247).
DRIVE MODE CONTROL –
TROUBLESHOOTING
DRIVE MODE CONTROL –WARNING LAMPS
Some drive modes reducetraction and stability controlperformance and the indicatorilluminates in the instrument cluster.
DRIVE MODE CONTROL – INFORMATION MESSAGES
ActionMessage
You have selected a four-wheel drive modethat is not available in the current drivemode. Select an available four-wheel drivemode.
Selected 4x4 Mode Not Available in CurrentDrive Mode
314
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMDrive Mode ControlE295419 E130458

TOWING A TRAILER
PRECAUTIONS
WARNING: Do not exceedthe GVWR or the GAWRspecified on the certificationlabel.
WARNING: Towing trailersbeyond the maximumrecommended gross trailerweight exceeds the limit of yourvehicle and could result in enginedamage, transmission damage,structural damage, loss ofvehicle control, vehicle rolloverand personal injury.
WARNING: Do not exceedthe lowest rating capacity foryour vehicle or trailer hitch.Overloading your vehicle ortrailer hitch can impair yourvehicle stability and handling.Failure to follow this instructioncould result in the loss of controlof your vehicle, personal injury ordeath.
WARNING: Make sure thatthe vertical load on the tow ballis between the minimum andmaximum recommended weightat all times. Failure to follow thisinstruction could result in theloss of control of your vehicle,personal injury or death.
WARNING: Do not cut,drill, weld or modify the trailerhitch. Modifying the trailer hitchcould reduce the hitch rating.
WARNING: The anti-lockbrake system does not controlthe trailer brakes.
TRAILER BRAKE
PRECAUTIONS
WARNING: Do not connect atrailer's hydraulic brake system directlyto your vehicle's brake system. Yourvehicle may not have enough brakingpower and your chances of having acollision greatly increase.
WARNING: Do not tow a trailerfitted with electric trailer brakes unlessyour vehicle is fitted with a compatibleaftermarket electronic trailer brakecontroller. Failure to follow thisinstruction could result in the loss ofcontrol of your vehicle, personal injury ordeath. For additional information andassistance, we recommend that youcontact an authorized dealer.
Electric brakes and manual, automatic orsurge-type trailer brakes are safe if youinstall them properly and adjust them tothe manufacturer's specifications. Thetrailer brakes must meet local and federalregulations.
The rating for the tow vehicle's brakingsystem operation is at the gross vehicleweight rating, not the gross combinedweight rating.
365
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMTowing a Trailer

Certain states require functioning trailerbrakes for trailers over a specified weight.Be sure to check state regulations for thisspecified weight.
Ford Motor Company recommendsseparate functioning brake systems fortrailers weighing more than 1,500 lb(680 kg) when loaded.
TOWING A TRAILER
LIMITATIONS
The vehicle's load capacitydesignation is by weight, not byvolume, so you cannot necessarilyuse all available space whenloading a vehicle or trailer.
Note:Your vehicle could havereduced performance whenoperating at high altitudes andwhen heavily loaded or towing a
trailer. When driving at elevation,to match driving performance asperceived at sea level, reduce grossvehicle weight and grosscombination weight by 2% per1,000 ft (300 m) elevation.
LOADING YOUR TRAILER
To help minimize how trailermovement affects your vehiclewhen driving:
•Load the heaviest items closestto the trailer floor.
•Load the heaviest itemscentered between theleft-hand and right-hand sidetrailer tires.
•Load the heaviest items abovethe trailer axles or just slightlyforward toward the trailertongue. Do not allow the finaltrailer tongue weight to goabove or below 10-15% of theloaded trailer weight. Thetrailer tongue weight shouldnever exceed 10% of themaximum towing capacitywhen towing a conventionaltrailer, and should neverexceed 15% of the maximumtowing capacity when towinga fifth-wheel or goosenecktrailer.
•Select a ball mount with thecorrect rise or drop. When youconnect both the loadedvehicle and trailer, the trailerframe should be level, or
slightly angled down towardyour vehicle, when viewed fromthe side.
TRAILER TOWING HINTS
Towing a trailer places an extra load onyour vehicle's engine, transmission, axle,brakes, tires and suspension. Periodicallyinspect these components during and afterany towing operation.
When driving with a trailer or payload, aslight takeoff vibration or shudder may bepresent due to the increased payloadweight.
366
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMTowing a Trailer

Your vehicle may have a temporary orconventional spare tire. A temporary sparetire is different in diameter or width,tread-type, or is from a differentmanufacturer than the road tires on yourvehicle. Consult information on the tirelabel or Safety Compliance label forlimitations when using.
When towing a trailer:
•Obey country specific regulations fortowing a trailer.
•Do not drive faster than 70 mph(113 km/h) during the first 500 mi(800 km).
•Do not make full-throttle starts.
•Check your hitch, electrical connectionsand trailer wheel lug nuts thoroughlyafter you have traveled 50 mi (80 km).
•When stopped in congested or heavytraffic during hot weather, place thetransmission in park (P) to aid engineand transmission cooling and to helpA/C performance.
•Turn off the speed control with heavyloads or in hilly terrain. The speedcontrol may turn off when you aretowing on long, steep slopes.
•Shift to a lower gear when driving downa long or steep hill. Do not continuouslyapply the brakes, as they may overheatand become less effective.
•If your transmission has Grade Assistor Tow/Haul, use this feature whentowing. This provides engine brakingand helps eliminate excessivetransmission shifting for optimum fueleconomy and transmission cooling.
•If your vehicle has AdvanceTrac withroll stability control, this system mayturn on during typical corneringmaneuvers with a heavily loaded trailer.This is normal. Turning the corner at aslower speed when towing may reducethis tendency.
•Allow more distance for stopping witha trailer attached. Anticipate stops andgradually brake.
•Avoid parking on a slope. However, ifyou must park on a slope, turn thesteering wheel to point your vehicletires away from traffic flow, set theparking brake, place the transmissionin park (P) and place wheel chocks infront and back of the trailer wheels.
Note:Chocks are not included with yourvehicle.
LAUNCHING OR RETRIEVING
A BOAT OR PERSONAL
WATERCRAFT
When backing down a ramp during boatlaunching or retrieval:
•Do not allow the static water level torise above the bottom edge of the rearbumper.
•Do not allow waves to break higherthan 6 in (15 cm) above the bottomedge of the rear bumper.
Exceeding 6 in (15 cm) could allow waterto enter vehicle components, causinginternal damage to the components andaffecting driveability, emissions andreliability.
Note:Replace the rear axle lubricantanytime the rear axle has been submergedin water.
Note:Disconnect the trailer wiringconnector before backing the trailer into thewater.
Note:Reconnect the trailer wiringconnector after removing the trailer fromthe water.
367
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMTowing a Trailer

Positioning the Trailer
Hitch the trailer to your vehicle andconnect the electrical wiring harness.Check to make sure that the wiring isworking. See Connecting a Trailer (page359).
Park your vehicle and hitched trailer on alevel surface.
For best results, make sure that your trailerrides level with the ground when you hitchyour vehicle. See Connecting a Trailer(page 359).
Make sure that the trailer and your vehicleare in line with each other. You can do thisby putting the transmission in drive (D) andpulling straight forward.
Configuring the Trailer in theTouchscreen
1.Press the button to switch the systemon.
2.Press Add Trailer on the touchscreen.
3.Follow the directions on thetouchscreen to enter the trailer nameand trailer type, then proceed to thesticker or sensor setup.
Note:If you configure the trailer and installa sensor, the trailer is saved with that sensorinformation. If you want to use this trailerwith the sticker, you need to delete thetrailer from the system and repeat the setupprocess.
387
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMTrailer Backup Assistance (If Equipped)E209766 E209759 E209760 E373857

Positioning the Trailer
Hitch the trailer to your vehicle andconnect the electrical wiring harness.Check to make sure that the wiring isworking. See Connecting a Trailer (page359).
Park your vehicle and hitched trailer on alevel surface.
For best results, make sure that your trailerrides level with the ground when you hitchyour vehicle. See Connecting a Trailer(page 359).
Make sure that the trailer and your vehicleare in line with each other. You can do thisby putting the transmission in drive (D) andpulling straight forward.
Configuring the Trailer in theTouchscreen
1.Shift to reverse (R).
2.Press the camera view button.
3.Press the trailer view icon.
4.Press Add Trailer.
5.Follow the directions on thetouchscreen to enter the trailer nameand trailer type, then proceed to thesticker or sensor setup.
Note:If you configure the trailer and installa sensor, the trailer is saved with that sensorinformation. If you want to use this trailerwith the sticker, you need to delete thetrailer from the system and repeat the setupprocess.
Note:Your vehicle has two options for thetrailer reversing aid setup. If your vehiclecame with a trailer sensor kit or if a messagedisplays to install a sensor, follow the sensorinstallation instructions. See Trailer SensorInstallation (page 403). If your vehicle didnot come with a trailer sensor kit, follow thesticker installation instructions. SeeApplying the Trailer Reverse Aid Sticker(page 403).
Note:If your vehicle came with a trailersensor kit, the vehicle will receive an updatethat allows the system to operate with asensor or sticker. If your vehicle did not comewith a trailer sensor kit, your vehicle can besetup using either method, but you need toseparately purchase the trailer sensor kitfrom your authorized dealer.
402
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMTrailer Reverse Guidance (If Equipped)E209766 E209759 E209760

•If a large obstacle such as a rockcannot be avoided, choose a path thatplaces the rock directly under the tirerather than the undercarriage of thevehicle. This will help prevent damageto the vehicle.
•Ditches and washouts should becrossed at a 45° angle, allowing eachwheel to independently cross theobstacle.
Hill Climbing
WARNING: Extreme care shouldbe used when steering the vehicle inreverse down a slope so as not to causethe vehicle to swerve out of control.
•Always attempt to climb a steep hillalong the fall line of the slope and notdiagonally.
•If the vehicle is unable to make it upthe hill, DO NOT attempt to turn backdown the slope. Place the vehicle inlow range and slowly back down inreverse.
•When descending a steep slope, selectlow gear and engage hill descentcontrol. Use the throttle and brakepedals to control your descent speed.
Note:Hill descent control is functional inreverse and should be used in this situation.
DRIVING THROUGH WATERLIMITATIONS
WARNING: Do not attempt tocross a deep, fast flowing body of water.Failure to follow this instruction couldresult in the loss of control of yourvehicle, personal injury or death.
Determine the depth and speed of thecurrent before attempting a water crossing.As the water depth increases, reduce yourvehicle speed to avoid potential vehicledamage.
The key to a safe crossing is the waterdepth, current and bottom of the water'scondition. On soft bottoms, the vehiclesinks in, effectively increasing the waterlevel on the vehicle. Make sure to considerthis when determining the depth of water.Be aware that obstacles and debris maybe beneath the water’s surface.
Note:Cross flowing water at an angleheading slightly upstream.
Note:Tread lightly and avoid damage tothe environment.
Drive slowly when crossing water. Startvery slowly when entering, then buildmomentum. Proceed with a constant slowspeed lightly pressing on the accelerator.Ease off the accelerator as you reach theother side to diminish the front wave. Applythe accelerator slowly and as necessaryto climb out of the other side.
Note:Do not try to accelerate through thewater crossing.
When driving too fast in water or throughdeep water, the engine, transmission,transfer case, axles, electrical componentsor vehicle interior could ingest water.Muddy waters can reduce the coolingsystem effectiveness by depositing debrisinto the radiator. Water can causepermanent damage that may not becovered by your vehicle warranty. Seebelow for your vehicle’s capabilities.
413
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMDriving Hints