2023 FORD SUPER DUTY steering

damage drive components. Whentransitioning from consistently loose orslippery surfaces, be sure the four-wheeldrive system is not mechanically blockedonce on dry, hard surface roads intwo-wheel drive high.
Operating Four-Wheel Drive witha Spare or Worn Tires
Your four-wheel drive system is notintended to provide full function with tiresthat have different levels of wear or witha dissimilar spare tire. Incorrect use offour-wheel drive with such tires can causesystem damage.
If there is a difference in the level of wearamong tires on the vehicle or if you installa dissimilar spare tire on the vehicle, do notuse 4WD High or 4WD Low (if equipped)other than to get your vehicle unstuck.After getting your vehicle unstuck, shift to2H by performing the following steps:
1.Come to a stop on a flat, horizontalsurface
2.Shift the transmission to park (P) forautomatic transmissions and neutral(N) for manual transmissions.
3.Switch to two-wheel drive mode.
4.Shift the transmission to reverse (R).
5.Shift the transmission to drive (D) forautomatic transmissions and to firstgear for manual transmissions. Thisensures the transfer case system is nottrapped in place.
Mechanical Shift Blocking
On four-wheel drive vehicles with amechanically locked four-wheel drive highmode, the transfer case distributes torqueto the front wheels by mechanicallyinterlocking the front and rear driveshaftstogether. Various external factors affectshifting performance of this type of systemincluding, but not limited to:
•Vehicle acceleration.
•Dissimilar tire sizes.
•Steering input.
If the system detects a mechanical shiftblockage at speed after you selecttwo-wheel drive high, the message "4x4Unable to Disengage See Manual", coulddisplay momentarily. If this messagedisplays, one or more of the followingactions can relieve the mechanical shiftblock:
•Momentary acceleration.
•Momentary braking.
•Bringing the vehicle to a stop.
•Shifting the transmission to neutral andback to drive.
•Shifting the transmission to reverseand back to drive.
•Driving the vehicle around a tight turnat a slow speed.
SWITCHING FOUR-WHEEL
DRIVE ON AND OFF
A vehicle that comes with four-wheel drive,when selected, has the ability to use allfour wheels to power itself. This increasestraction, which may enable you to safelydrive over terrain and road conditions thata conventional two-wheel drive vehiclecannot.
On some four-wheel drive models, theinitial shift from two-wheel drive tofour-wheel drive while the vehicle ismoving can cause a momentary clunk andratcheting sound. These sounds are normalas the front drivetrain comes up to speedand are not cause for concern.
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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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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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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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Note:This feature offers smoother, lessaggressive engine braking during downhilldescents. It may not apply braking if thevehicle speed is not increasing, although itapplies full engine braking force whenneeded to prevent acceleration. The systemautomatically activates the engine brakeand, if necessary, downshifts thetransmission to lower gears to not exceedyour vehicle's set speed when the brake oraccelerator were last released.
DIESEL ENGINE EXHAUST
BRAKE INDICATORS
DIESEL ENGINE EXHAUST
BRAKE GAUGE
Displays the diesel engine exhaust brakepower in the form of a percentage. A fullfill or 100% represents the total dieselengine exhaust brake power available.
The gauge displays zero to 100%depending on the engine brake powerprovided by the system.
Note:When the diesel engine exhaust brakeis switched off, the gauge displays zero.
Accessing the Diesel EngineExhaust Brake Gauge
You can access the diesel engine exhaustbrake gauge in the instrument cluster usingthe instrument cluster display control onthe steering wheel:
•Press the menu button.
•Select Gauges.
•Select Diesel Gauges.
DIESEL ENGINE EXHAUST
BRAKE – TROUBLESHOOTING
DIESEL ENGINE EXHAUST BRAKE– WARNING LAMPS
•Illuminates when this feature isswitched on and the system isoperating properly.
•Flashes when the engine brake isdisabled due to a fault.
•Does not illuminate when the switchor indicator is faulty.
You can switch the system on at any time.The braking system becomes active oncethe braking conditions are met.
DIESEL ENGINE EXHAUST
BRAKE VIDEOS
Diesel Engine Exhaust Braking Video Link
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Note:The system does not react to smallor moving objects, particularly those closeto the ground.
Note:The system does not operate duringhard acceleration or steering.
Note:If your vehicle sustains damage tothe bumper or fascia leaving it misalignedor bent, it could alter the sensing zonecausing inaccurate measurement ofobstacles or false alerts.
Note:Vehicle loading and suspensionchanges can impact the angle of the sensorsand may change the normal detection zoneof the system resulting in inaccuratemeasurement of obstacles or false alerts.
Note:When you connect a trailer, thesystem may detect the trailer and providean alert, or the system turns off. If thesystem does not turn off, manually switchthe system off after you connect the trailer.
Note:You may experience reduced systemperformance on road surfaces that limitdeceleration. For example, roads with ice,loose gravel, mud or sand.
SWITCHING REVERSE BRAKE
ASSIST ON AND OFF
1.Press Features on the touchscreen.
2.Press Driver Assistance.
3.Switch Reverse Brake Assist on or off.
Note:The system is unavailable when therear parking aid or cross traffic alert is off.
Note:If your vehicle is not equipped withcross traffic alert the reverse braking assistrelies on input from the rear parking aid andrear camera sensors.
OVERRIDING REVERSE BRAKE
ASSIST
There could be instances whenunexpected or unwanted braking occurs.Firmly pressing the accelerator pedal orswitching the feature off overrides thesystem.
REVERSE BRAKE ASSIST
INDICATORS
If the system determines that a collisionwith an obstacle may occur, full brakingmay apply.
A message and warningindicator appear when thesystem applies the brakes.
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WHAT IS TRACTION CONTROL
The traction control system helps to avoiddrive wheel spin and loss of traction.
HOW DOES TRACTION
CONTROL WORK
If your wheels begin to spin, the loss oftraction can compromise steering controland stability of the vehicle. The tractioncontrol system applies the brakes toindividual wheels and when needed,reduces engine power at the same time toincrease traction.
SWITCHING TRACTION
CONTROL ON AND OFF
WARNING: Operating your vehiclewith the traction control disabled couldlead to an increased risk of loss of vehiclecontrol, vehicle rollover, personal injuryand death.
The traction control system turns on eachtime you switch the ignition on.
The button for the stability and tractioncontrol system is on the instrument panel.
Press and release the button to switchtraction control off. The stability controlsystem remains fully active, to switch it off,press and hold the button for a fewseconds, then release.
When you switch traction control off, amessage and an illuminated icon appearon the instrument cluster.
Press the switch again to turn the tractioncontrol system back on to normaloperation.
If your vehicle is stuck in mud or snow,switching traction control off may bebeneficial as this allows the wheels to spin.
TRACTION CONTROL
INDICATOR
Stability and Traction ControlIndicator
If the indicator does notilluminate when you switch theignition on, or remains on whenthe engine is running, this indicates amalfunction. Have your vehicle checkedby an authorized dealer as soon aspossible.
The traction control off indicatorilluminates when you switch thetraction control system off, orwhen an alternative stability control modeis selected that requires the tractioncontrol off depending on the drive modeselected.
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HOW DOES STABILITY
CONTROL WORK
WARNING: Vehicle modificationsinvolving braking system, aftermarketroof racks, suspension, steering system,tire construction and wheel and tire sizemay change the handling characteristicsof your vehicle and may adversely affectthe performance of the electronicstability control system. In addition,installing any stereo speakers mayinterfere with and adversely affect theelectronic stability control system.Reducing the effectiveness of theelectronic stability control system couldlead to an increased risk of loss of vehiclecontrol, vehicle rollover, personal injuryand death.
WARNING: Remember that evenadvanced technology cannot defy thelaws of physics. It's always possible tolose control of a vehicle due toinappropriate driver input for theconditions. Aggressive driving on anyroad condition can cause you to losecontrol of your vehicle increasing the riskof personal injury or property damage.Activation of the electronic stabilitycontrol system is an indication that atleast some of the tires have exceededtheir ability to grip the road; this couldreduce the operator's ability to controlthe vehicle potentially resulting in a lossof vehicle control, vehicle rollover,personal injury and death.
If a driving condition activates either thestability control or traction control you mayexperience the following conditions:
•The stability and traction control lightflashes.
•Your vehicle slows down.
•Reduced engine power.
The stability control system has severalfeatures built into it to help you maintaincontrol of your vehicle:
Electronic Stability Control
Electronic stability control enhances yourvehicle’s ability to prevent skids or lateralslides by applying brakes to one or moreof the wheels individually and, if necessary,reducing engine power.
Roll Stability Control
Roll stability control enhances yourvehicle’s ability to prevent rollovers bydetecting your vehicle’s roll motion andthe rate at which it changes by applyingthe brakes to one or more wheelsindividually.
Curve Control
Curve control enhances your vehicle’sability to follow the road when corneringseverely or avoiding objects in the roadway.Curve control operates by reducing enginepower and, if necessary, applying brakesto one or more of the wheels individually.
Side Wind Stabilization
Side wind stabilization is an advancedfeature that works by carefully applyingthe brakes on one side of the vehicle toreduce the effect of a side wind gust onthe vehicle's path.
Traction Control
Traction control enhances your vehicle’sability to maintain traction of the wheelsby detecting and controlling wheel spin.See What Is Traction Control (page 268).
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