2023 FORD SUPER DUTY clock

HOW DOES FOUR-WHEEL
DRIVE WORK
Using the Electronic Shift On theFly System (If Equipped)
This four-wheel drive system utilizes a2-speed Electronic Shift On the Fly (ESOF)transfer case which is also known as apart-time system. This system offers thedriver two-wheel drive high, four-wheeldrive high, and four-wheel drive low asavailable modes of operation. When youselect either four-wheel drive high orfour-wheel drive low, the system providesmechanically locked four-wheel drivepower to both the front and rear wheelsfor use in off-road or slippery conditionssuch as deep snow, sand or mud. Whenyou select four-wheel drive low, the systemprovides additional gearing for increasedtorque multiplication for conditions likedeep sand, steep slopes, or pulling heavyobjects. Additionally, the system is capableof recreational flat towing by putting thetransfer case into a neutral position. SeeRecreationally Towing Your Vehicle(page 427).
There is further information available ondriving in unique driving conditions. SeeOff-Road Driving (page 412).
Your vehicle has manual hub locks on thedriver side and passenger side of yourvehicle. For proper operation, make surethat each hub is fully engaged and thatboth hub locks are set to the same position(both set to lock or both set to auto). Toengage lock, turn the hub locks completelyclockwise. To engage auto, turn the hublocks completely counterclockwise.
The ESOF four-wheel drive system:
•Provides 4x4 High engagement anddisengagement while the vehicle ismoving.
•Operates by a push button controllocated on the instrument panel thatallows you select 4x2, 4x4 High or 4x4Low operation.
•Uses auto-manual hub locks. When setto auto, the hubs engage anddisengage automatically based on the4x4 mode you select. When set to lock,the hubs remain engaged at all times.
•Increases fuel economy when used inthe hub lock's recommended automode.
Note:Auto-manual hub locks manuallylock by rotating the hub lock control fromauto to lock.
Note:Hub locks should be in auto modewhen in 4x2 mode. If hub locks are in lockmode in 4x2 mode, there will be additionalnoise from the front axle.
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2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMFour-Wheel Drive (If Equipped)LOCKOTUAE339076

WHAT IS THE ELECTRONIC
LOCKING DIFFERENTIAL
The electronic locking differential is adevice housed in the rear axle and whenactivated, allows both wheels on that axleto turn at the same speed. The electroniclocking differential provides additionaltraction should your vehicle become stuck.
HOW DOES THE ELECTRONIC
LOCKING DIFFERENTIAL
WORK
You can activate the differentialelectronically and shift it on the fly withinthe operating speed range. The electronicdifferential disengages when the vehiclespeed exceeds a set value and it reengageswhen the vehicle speed drops below a setvalue. See Switching the ElectronicLocking Differential On and Off (page245). The electronic locking differentialcould engage based on certain selecteddrive modes. See Selecting a Drive Mode(page 311). The electronic lockingdifferential is for use in mud, rocks, sand,or any off-road condition where you needmaximum traction.
Note:The electronic locking differential isfor off-road use only and is not for use ondry pavement. Using the electronic lockingdifferential on dry pavement results inincreased tire wear, noise and vibration.
Note:The electronic locking differentialactivates or deactivates automaticallybased on speed, four-wheel drive mode, anddrive mode selection. See Switching theElectronic Locking Differential On andOff (page 245).
ELECTRONIC LOCKING
DIFFERENTIAL PRECAUTIONS
Operating the Electronic LockingDifferential with a Spare orMismatched Tires
On vehicles with an electronic lockingdifferential, the size of the spare tire canaffect performance of the system. If thereis a significant difference between the tworear tires, you may have limited electroniclocking differential functionality. If thesystem has difficulty disengaging, releasethe accelerator pedal and turn the steeringwheel in the opposite direction whenrolling. We recommend engaging anddisengaging the electronic lockingdifferential at a stop when you mount aspare on the rear axle.
SWITCHING THE ELECTRONIC
LOCKING DIFFERENTIAL ON
AND OFF - 4X4
Press the electronic lock differential switchto engage and disengage the lockingdifferential.
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2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMElectronic Locking Differential (If Equipped)E373433

4X4 Rear Electronic Locking Differential Engagement Speed and Availability
Automatic Re-Engagement SpeedAutomatic Disen-gagement SpeedMaximum Engage-ment SpeedDrive Modes
20 mph (30 km/h)25 mph (41 km/h)20 mph (30 km/h)Eco (2H, 4H)
20 mph (30 km/h)25 mph (41 km/h)20 mph (30 km/h)Tow/Haul Mode(2H,4H)
20 mph (30 km/h)25 mph (41 km/h)20 mph (30 km/h)Normal (2H, 4H)
20 mph (30 km/h)25 mph (41 km/h)20 mph (30 km/h)Slippery (2H, 4H)
No Speed LimitNo Speed LimitNo Speed LimitOff-Road (4H, 4L)1
No Speed LimitNo Speed LimitNo Speed LimitRock Crawl (4L)2
1 Engages when you select these drive modes. You have the ability to manually overridethe automatic engagement by pressing the electronic locking differential.2 Engages when you select these drive modes. You have the ability to manually overridethe automatic engagement by pressing the electronic locking differential. Only availablewith Tremor Package.
Automatic Re-Engagement SpeedAutomatic Disen-gagement SpeedMaximum Engage-ment Speed4WD Mode
No Speed LimitNo Speed LimitNo Speed LimitFour-Wheel DriveLow (4L)
Note:The electronic locking differentialmay not engage if you press the acceleratorpedal during an engagement attempt. Amessage could display in the instrumentcluster display guiding you to release theaccelerator pedal.
Note:Switching the electronic lockingdifferential off while turning results indisengagement difficulties. If the electroniclocking differential has difficultydisengaging, release the accelerator pedaland turn the steering wheel back and forthin small increments while maintainingcontrol and following a straight line.
Note:The electronic locking differential isfor off-road use only and is not for use ondry pavement. Using the electronic lockingdifferential on dry pavement results inincreased tire wear, noise and vibration.
Note:Do not perform this operation whencruise control or trail control is selected andactive. The system may not engage ordisengage as expected.
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2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMElectronic Locking Differential (If Equipped)

SWITCHING THE ELECTRONIC
LOCKING DIFFERENTIAL ON
AND OFF - 4X2
Press the electronic locking differentialswitch to engage and disengage theelectronic locking differential.
4X2 Rear Electronic LockingDifferential Engagement Speed andAvailability
AutomaticRe-Engage-ment Speed
AutomaticDisengage-ment Speed
MaximumEngagementSpeed
20 mph(30 km/h)25 mph(41 km/h)20 mph(30 km/h)
Note:The electronic locking differential canactivate or deactivate automatically basedon speed, four-wheel drive mode, and drivemode selection. See Selecting a DriveMode (page 311).
Note:The electronic locking differentialmay not engage if you press the acceleratorpedal during an engagement attempt. Amessage could display in the instrumentcluster display guiding you to release theaccelerator pedal.
Note:Switching the electronic lockingdifferential off while turning results indisengagement difficulties. If the electroniclocking differential has difficultydisengaging, release the accelerator pedaland turn the steering wheel back and forthin small increments while maintainingcontrol and following a straight line.
Note:The electronic locking differential isfor off-road use only and is not for use ondry pavement. Using the electronic lockingdifferential on dry pavement results inincreased tire wear, noise and vibration.
Note: Do not perform this operation whencruise control or trail control is selected andactive. The system may not engage ordisengage as expected.
ELECTRONIC LOCKING
DIFFERENTIAL INDICATORS
If both rear wheel axle shaftslock together, the indicator in thecluster is amber, providingadditional traction.
If you select the electronic lockingdifferential and the indicator in the clusteris gray or turns from amber to gray whiledriving, one of the following has occurred:
•The vehicle speed is too high.
•The accelerator pedal is too high duringan engagement attempt.
•The vehicle is experiencing an anti-lockbrake activation.
•The left and right wheel speeddifference is too high during anengagement attempt.
If you select the electronic lockingdifferential and the indicator in the clusterdoes not turn on, the following hasoccurred:
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2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMElectronic Locking Differential (If Equipped)E373432 E325779

•The system has malfunctioned andaccompanies a check lockingdifferential message in the informationdisplay. See your dealer as soon aspossible.
Note:If the vehicle is experiencing ananti-lock braking event, the electroniclocking differential may momentarilydisengage.
ELECTRONIC LOCKING DIFFERENTIAL – TROUBLESHOOTING
ELECTRONIC LOCKING DIFFERENTIAL – INFORMATION MESSAGES
Description and ActionMessage
An electronic locking differential system fault is present.Contact an authorized dealer as soon as possible.Check Locking Differen-tial
Release the accelerator pedal to engage.To Engage LockingDifferential ReleaseAccelerator Pedal
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2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMElectronic Locking Differential (If Equipped)

DRIVE MODES
ECO - 4X4
For efficient driving. This modehelps deliver maximum fuelefficiency and helps to increasedriving range.
Two-wheel drive high is the defaultfour-wheel drive mode. Four-wheel drivelow is not available in eco mode.
The electronic locking differential isavailable below 25 mph (40 km/h). SeeSwitching the Electronic LockingDifferential On and Off (page 245).
ECO - 4X2
For efficient driving. This modehelps deliver maximum fuelefficiency and helps to increasedriving range.
The electronic locking differential isavailable below 25 mph (40 km/h). SeeSwitching the Electronic LockingDifferential On and Off (page 247).
NORMAL - 4X4
For everyday driving. This modeis the perfect balance ofexcitement, comfort andconvenience. This is the default mode aftereach ignition cycle.
Two-wheel drive high is the defaultfour-wheel drive mode. All four-wheel drivemodes are selectable when in normalmode.
The electronic locking differential isavailable below 25 mph (40 km/h). SeeSwitching the Electronic LockingDifferential On and Off (page 245).
NORMAL - 4X2
For everyday driving. This modeis the perfect balance ofexcitement, comfort andconvenience. This is the default mode aftereach ignition cycle.
The electronic locking differential isavailable below 25 mph (40 km/h). SeeSwitching the Electronic LockingDifferential On and Off (page 247).
OFF-ROAD - 4X4
For driving on rough uneventerrain. This mode optimizesaccelerator pedal response togive you more control over your vehiclewhen traversing off-road obstacles.Traction control and stability controlsettings are optimized, and the rearelectronic differential is automaticallyengaged to enhance vehicle performancein off-road environments. Use this modewhen driving through sand, loose gravel,mud, or mixed off-road terrain.
ROCK CRAWL
For off-road driving andoptimum rock-climbing. Rockcrawl mode engages theelectronic locking differential, optimizesthrottle response and adjusts transmissionshift points to provide additional controlof your vehicle.
Four-wheel drive low is the only four-wheeldrive mode available in rock crawl mode.
The electronic locking differential engageswhen you select this mode at any speed,and you can disengage it at any time usingthe button. See Switching the ElectronicLocking Differential On and Off (page245).
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2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMDrive Mode ControlE295413 E295413 E225310 E225310 E372640 E367349

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
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2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMDrive Mode ControlE295419 E130458

INSTALLING AND REMOVING THEPICKUP BED TIE-DOWN CLEATS
Installing the Cleats
1.Insert the key into the lock and turnclockwise to unlock.
2.Insert the cleat into the pickup bedanchor point and slide upward.
3.Turn the key counterclockwise to lock.
Note:Leave the key in the lock whenremoving or installing the cleats. The keycannot be removed unless it is in the lockedposition.
Removing the Cleats
To remove, reverse the installationprocedure.
PICKUP BED ANCHOR POINTLOAD CAPACITIES
BA
Maximum forcebetween diagonallyopposed cleats600 lb (272 kg).
Maximum forcebetween directlyopposed cleats276 lb (125 kg).
Note:You could damage the pickup bedwalls if you overload the tie downs.
Note:Make sure that you properly balanceand secure the cargo load. Failure to do thiscan cause cargo instability and damage tothe box.
Note:Do not secure cargo with tie downsconnected from the tie down brackets tothe cargo box tie downs. This could causethe tailgate to detach.
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2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMPickup BedE327575 E327576