ECO mode FORD SUPER DUTY 2023 Service Manual

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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DIESEL ENGINE EXHAUST
BRAKE – PRECAUTIONS
WARNING: Do not use tow/haulwhen the road surface is slippery. Failureto follow this instruction could result inthe loss of control of your vehicle.
WARNING: Do not use dieselengine exhaust braking when the roadsurface is slippery. Failure to follow thisinstruction could result in the loss ofcontrol of your vehicle.
USING THE DIESEL ENGINE
EXHAUST BRAKE
This feature increases engine braking athigher engine speeds to provide bettergrade descent control with less brake andtransmission wear and tear.
Note:Use this when driving downhill andcarrying heavy loads or trailering.
Benefits of engine braking are:
•Lower brake temperature.
•Reduced brake fade.
•Longer brake life.
•Improved driving and trailering control.
Press the button on the switchbank next to the audio unit toswitch the system on or off.
There are two engine brake modes, manualand automatic.
The following conditions must be met touse exhaust brake:
•Your vehicle is in a forward gear.
•The engine speed is above 1300 RPM.
•Your foot is off the accelerator.
You can use this feature with tow/haul orprogressive range selection to providefurther increased engine braking. Thetransmission upshifts to prevent the enginefrom entering the red zone on thetachometer.
Manual Engine Braking
1.Press the button to switch on manualengine braking.
2.Release the accelerator pedal tomaximize engine braking.
3.Apply the brakes. The transmissiondownshifts to lower gears.
Note:The engine braking feature onlyfunctions when you release the accelerator.
Note:You can shift the transmission tolower gears with progressive range selectionor manual shifting independent of pressingthe brakes.
Note:You can also use manual enginebraking with cruise control to improve gradedescent control.
Note:If your vehicle has adaptive cruisecontrol, the speed control system uses theselected engine brake mode, transmissiongears, and brakes to maintain the set speedand distance to the vehicle being followed.
Automatic Engine Braking
1.Press the button twice to switch onautomatic engine braking.
2.Release the accelerator or brake pedal.The system remembers your vehiclespeed.
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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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Stability Control and Traction Control with Roll Stability Control
Traction ControlSystemElectronicStability ControlRoll StabilityControlStability ControlOFF Light
Enabled3Enabled3EnabledIlluminatedduring bulbcheck
Default at start-up
Disabled1Enabled3EnabledIlluminatedButton pressedmomentarily
Disabled1Disabled2EnabledIlluminatedButton pressedand held for 5 -15 seconds
Disabled1DisabledDisabledIlluminatedTransfer case isswitched to 4x4Low or put intoRock CrawlMode
1 The Traction Control system can still be enabled but with tighter or looser thresholds.2 When you press and hold the button, a progress bar will display to show the button holdtime progress.3 Functions can vary depending on what Selectable Drive Mode the vehicle is currentlyin.
STABILITY CONTROL
INDICATOR
If it does not illuminate when youswitch the power on, or remainson, this indicates a malfunction.Have your vehicle checked by anauthorized dealer as soon as possible.
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HILL DESCENT CONTROL – TROUBLESHOOTING
HILL DESCENT CONTROL – INFORMATION MESSAGES
ActionMessage
Your vehicle speed requirement for off-road modeentry has not been met.For Hill Descent Reduce SpeedXX MPH/km/h or Less
You need to select a transmission gear for hill descentmode.For Hill Descent Select Gear
Hill descent control mode is deactivated and you mustresume control.Hill Descent Driver ResumeControl
A hill descent system fault is present.Hill Descent Control Fault
The hill descent system is cooling due to overuse.Hill Descent Control Off SystemCooling
The hill descent system cannot activate while CruiseControl is actively controlling speed.Hill Descent Control not avail-able with Cruise Control Active
HILL DESCENT CONTROL
VIDEOS
Hill Descent Control
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WHAT IS CRUISE CONTROL
Cruise control lets you maintain a setspeed without keeping your foot on theaccelerator pedal.
Requirements
Use cruise control when the vehicle speedis greater than 20 km/h in metric units or15 mph in imperial units.
SWITCHING CRUISE CONTROL
ON AND OFF
WARNING: Do not use cruisecontrol on winding roads, in heavy trafficor when the road surface is slippery. Thiscould result in loss of vehicle control,serious injury or death.
The cruise controls are on the steeringwheel.
Switching Cruise Control On
Press the button to activate thesystem. When the systemactivates, the set speed is equalto the current vehicle speed or 20 km/h (15mph), whichever is greater. If the speed istoo low, or other conditions are not correctfor cruise control activation, the systementers standby mode.
Switching Cruise Control Off
Press the button when thesystem is active or switch theignition off.
Note:When you switch cruise control off,the set speed clears.
SETTING THE CRUISE
CONTROL SPEED
WARNING: When you are goingdownhill, your vehicle speed couldincrease above the set speed. Thesystem does not apply the brakes.
Drive to the speed you prefer.
Press either the SET+ or SET-buttons to set the current speed.
Take your foot off the accelerator pedal.
Note:The indicator changes color in theinformation display.
Changing the Set Speed
Press the SET+ button toincrease the set speed in smallincrements. Press and hold theSET+ button to accelerate. Release thebutton when you have reached yourpreferred speed.
Press the SET- button todecrease the set speed in smallincrements. Press and hold theSET- button to decelerate. Release thebutton when you have reached yourpreferred speed.
Note: If you accelerate by pressing theaccelerator pedal, the set speed does notchange. When you release the acceleratorpedal, your vehicle returns to the speed thatyou previously set.
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Note:An audible alarm sounds and thesystem shuts down if it applies brakes foran extended period of time. This allows thebrakes to cool. The system functionsnormally again after the brakes cool.
Note:When towing with adaptive cruisecontrol, switch on Tow/Haul Mode andDiesel Engine Brake.
Note:Tow/Haul mode increases the timegaps and allows more distance for braking.
ADAPTIVE CRUISE CONTROL
LIMITATIONS
Sensor Limitations
WARNING: On rare occasions,detection issues can occur due to theroad infrastructures, for example bridges,tunnels and safety barriers. In thesecases, the system may brake late orunexpectedly. At all times, you areresponsible for controlling your vehicle,supervising the system and intervening,if required.
WARNING: If the systemmalfunctions, have your vehicle checkedas soon as possible.
WARNING: Large contrasts inoutside lighting can limit sensorperformance.
WARNING: The system only warnsof vehicles detected by the radar sensor.In some cases there may be no warningor a delayed warning. Apply the brakeswhen necessary. Failure to follow thisinstruction could result in personal injuryor death.
WARNING: The system may notdetect stationary or slow movingvehicles below 6 mph (10 km/h).
WARNING: The system does notdetect pedestrians or objects in the road.
WARNING: The system does notdetect oncoming vehicles in the samelane.
WARNING: The system may notoperate properly if the sensor is blocked.Keep the windshield free fromobstruction.
WARNING: The sensor mayincorrectly track lane markings as otherstructures or objects. This can result ina false or missed warning.
Camera.1.
Radar sensor.2.
The camera is on the windshield behindthe interior mirror.
The radar sensor is in the lower grille.
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Optimal system performance requires aclear view of the road by the windshieldcamera.
Optimal performance may not occur if:
•The camera is blocked.
•There is poor visibility or lightingconditions.
•There are bad weather conditions.
SWITCHING ADAPTIVE
CRUISE CONTROL ON AND OFF
The cruise controls are on the steeringwheel.
Switching Adaptive Cruise ControlOn
Press the button to activate thesystem. When the systemactivates, the set speed is equalto whichever is greater, the current vehiclespeed, or 15 mph when in imperial units or20 km/h when in metric units. If the speedis too low, or other conditions are notcorrect for adaptive cruise controlactivation, the system enters standbymode. When you are below 15 mph whenin imperial units or 20 km/h when in metricunits, adaptive cruise control does notactivate unless you are following anothervehicle.
The indicator, current gap setting and setspeed appear in the instrument clusterdisplay.
Switching Adaptive Cruise ControlOff
Press the button when thesystem is in standby mode orswitch the ignition off.
Note:When you switch the system off, theset speed clears.
ADAPTIVE CRUISE CONTROL
AUTOMATIC CANCELLATION
The system may cancel if:
•The tires lose traction.
•You apply the parking brake.
The system may cancel and set the parkingbrake if:
•You unbuckle the seatbelt and openthe driver door after adaptive cruisecontrol stops your vehicle.
•Adaptive cruise control holds yourvehicle at a stop continuously for morethan three minutes.
The system may deactivate or preventactivating when requested if:
•The vehicle has a blocked sensor.
•The brake temperature is too high.
•There is a failure in the system or arelated system.
SETTING THE ADAPTIVE
CRUISE CONTROL SPEED
Drive to the speed you prefer.
Press the SET+ or SET- buttonsto set the current speed.
Take your foot off the accelerator pedal.
The indicator, current gap setting and setspeed appear in the instrument clusterdisplay.
A vehicle image illuminates if there is avehicle detected in front of you.
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ADAPTIVE CRUISE CONTROL
INDICATORS
Illuminates when you switchadaptive cruise control on. Thecolor of the indicator changes toindicate the system status.
White indicates the system is on butinactive.
Blue indicates that you set the speed andthe system is active.
SWITCHING FROM ADAPTIVE
CRUISE CONTROL TO CRUISE
CONTROL
WARNING: Normal cruise controlwill not brake when your vehicle isapproaching slower vehicles. Always beaware of which mode you have selectedand apply the brakes when necessary.
1.Press Features on the touchscreen.
2.Press Driver Assistance.
3.Press Cruise Control.
4.Press Normal Cruise Control.
The cruise control indicatorreplaces the adaptive cruisecontrol indicator if you selectnormal cruise control. The gap settingdoes not display, and the system does notrespond to lead vehicles. Automaticbraking remains active to maintain setspeed. The system remembers the lastsetting when you start your vehicle.
LANE CENTERING
HOW DOES LANE CENTERINGWORK
Adaptive cruise control with lane centeringuses the vehicle's front radar sensor andfront windshield camera sensor, togetherwith the steering sensor to operate.
Using these sensors, the system appliescontinuous steering assistance towardsdriving in the middle of the lane you chooseon highway roads.
Note:The gap setting for adaptive cruisecontrol with lane centering, operates in thesame way as normal adaptive cruise control.
LANE CENTERING PRECAUTIONS
WARNING: Do not use the systemwhen towing a trailer or when the vehicleis loaded to near or over maximumpayload. Failure to follow this instructioncould result in the loss of control of yourvehicle, personal injury or death.
WARNING: Do not use the systemif any changes or modifications to thesteering, suspension system or wheelsand tires have been made. Any changesor modifications to the steering,suspension system or wheels and tirescould affect the functionality andperformance of the system. Failure tofollow this instruction could result in theloss of control of your vehicle, personalinjury or death.
Adaptive cruise control precautions applyto lane centering unless stated otherwiseor contradicted by a lane centeringprecaution. See Adaptive Cruise ControlPrecautions (page 296).
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•The brake pedal is pressed.
•Adaptive cruise control button isswitched off on the steering wheel.
The lane centering system is momentarilysuppressed when either of the followingactions are performed:
•Turn signal indicator is latched ortapped with added steering input.
•You steer the vehicle out of lane.
LANE CENTERING INDICATORS
Illuminates when you switchlane centering on. The color ofthe indicator changes to indicatethe system status.
Gray status indicates the system is on butin standby mode.
Blue status indicates the system is enabledand applying steering assistance to keepthe vehicle in the center of the lane.
Amber status with an audible tone, thatthen changes to gray status, indicates asystem automatic cancellation.
PREDICTIVE SPEED ASSIST (IF
EQUIPPED)
HOW DOES PREDICTIVE SPEEDASSIST WORK
Predictive Speed Assist works withadaptive cruise control and adjusts thevehicle speed to the road geometry and tothe speed limit detected by the speed signrecognition system. As the systemidentifies curves and highway exits, thevehicle speed temporarily decreases aheadof and during the changing road geometry.When passing new speed signs, the setspeed updates. See Predictive SpeedAssist Precautions (page 306).
There are limitations that affect theaccuracy of the speed sign recognitionsystem and its ability to determine thecurrent speed limit. Predictive speed assistand its ability to determine the currentspeed limit shares these limitations. SeeSpeed Sign Recognition (page 348).
Note:The adaptive cruise control gapsetting operates normally when the featureis enabled.
PREDICTIVE SPEED ASSISTPRECAUTIONS
WARNING: You are responsible forcontrolling your vehicle at all times. Thesystem is designed to be an aid and doesnot relieve you of your responsibility todrive with due care and attention. Failureto follow this instruction could result inthe loss of control of your vehicle,personal injury or death.
WARNING: Pay close attention tochanging road conditions. You may needto override the system by pressing thebrake or accelerator pedal if the adjustedspeed becomes higher or lower thannecessary.
WARNING: The system onlyprovides limited braking. Your vehiclemay not always decelerate quicklyenough to avoid a crash without driverintervention. Apply the brakes whennecessary.
WARNING: The system does notactivate the turn signal.
Adaptive cruise control precautions applyto predictive speed assist unless statedotherwise or contradicted by a predictivespeed assist precaution. See AdaptiveCruise Control Precautions (page 296).
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