2023 FORD EXPEDITION sensor

HOW DOES FOUR-WHEEL
DRIVE WORK
Using the 1-Speed Automatic Four-Wheel Drive System
The 1-speed automatic four-wheel drivesystem utilizes an electronically controlledon-demand 1-speed transfer case. Thissystem monitors various vehicle sensoryinputs to provide an increased level ofperformance. This system offers the drivertwo-wheel drive high, four-wheel driveauto and four-wheel drive high as availablemodes of operation via the selectable drivemode switch. When you select four-wheeldrive auto the system continuously variespower to the front wheels for optimumperformance for all on-road conditions.When you select four-wheel drive high thesystem provides power to the front andrear wheels for use in off-road or slipperyconditions such as deep snow, sand ormud. There is further information on drivingin unique driving conditions. See DrivingHints (page 389).
Using the 2-Speed AutomaticFour-Wheel Drive System (If Equipped)
The 2-speed automatic four-wheel drivesystem utilizes an electronically controlledon-demand 2-speed transfer case. Thissystem monitors various vehicle sensoryinputs to provide an increased level ofperformance. This system offers the drivertwo-wheel drive high, four-wheel driveauto, four-wheel drive high, and four-wheeldrive low as available modes of operation.When you select four-wheel drive auto thesystem continuously varies power to thefront wheels for optimum performance forall on-road conditions. When you selecteither four-wheel drive high or four-wheeldrive low with the appropriate drive modes,the four-wheel drive system provideselectronically locked power to the frontand rear wheels for use in off-road or
slippery conditions such as deep snow,sand or mud. Selecting four-wheel drivelow also provides additional gearing forincreased torque multiplication forconditions like deep sand, snow, steepslopes, or pulling heavy objects. SeeSelecting a Four-Wheel Drive Mode(page 220).Additionally, the system iscapable of recreational flat towing byputting the transfer case into neutral (N).See Recreationally Towing YourVehicle (page 400).
There is further information on driving inunique driving conditions. See DrivingHints (page 389).
FOUR-WHEEL DRIVE
PRECAUTIONS
WARNING: Vehicles with a highercenter of gravity (utility and four-wheeldrive vehicles) handle differently thanvehicles with a lower center of gravity(passenger cars). Avoid sharp turns,excessive speed and abrupt steering inthese vehicles. Failure to drive cautiouslyincreases the risk of losing control of yourvehicle, vehicle rollover, personal injuryand death.
WARNING: Do not becomeoverconfident in the ability of four-wheeldrive vehicles. Although a four-wheeldrive vehicle may accelerate better thana two-wheel drive vehicle in low tractionsituations, it won't stop any faster thantwo-wheel drive vehicles. Always driveat a safe speed.
Truck and utility vehicles can differ fromsome other vehicles. Your vehicle could behigher to allow it to travel over roughterrain without getting stuck or damagingunderbody components. The differencesthat make your vehicle so versatile also
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WHAT IS REVERSE BRAKING
ASSIST
Reverse braking assist is designed toreduce impact damage or assist in avoidinga collision while in reverse (R). Usingsensors on the rear of the vehicle, it candetect a possible collision and apply thebrakes. If full braking occurs, the systemattempts to stop the vehicle a safedistance from the obstacle.
HOW DOES REVERSE
BRAKING ASSIST WORK
Reverse braking assist functions when inreverse (R) and traveling at a speed of1–7 mph (2–12 km/h).
If the system detects an obstacle behindyour vehicle, it provides a warning throughthe rear parking aid or cross traffic alertsystem.
REVERSE BRAKING ASSIST
PRECAUTIONS
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: To help avoid personalinjury, always use caution when inreverse (R) and when using the sensingsystem.
WARNING: The system may notoperate properly during severe weatherconditions, for example snow, ice, heavyrain and spray. Always drive with duecare and attention. Failure to take caremay result in a crash.
WARNING: Traffic control systems,fluorescent lamps, inclement weather,air brakes, external motors and fans mayaffect the correct operation of thesensing system. This may cause reducedperformance or false alerts.
WARNING: Some situations andobjects prevent hazard detection. Forexample low or direct sunlight, inclementweather, unconventional vehicle types,and pedestrians. Apply the brakes whennecessary. Failure to follow thisinstruction could result in the loss ofcontrol of your vehicle, personal injury ordeath.
WARNING: Do not use the systemwith accessories that extend beyond thefront or rear of your vehicle, for examplea trailer hitch or bike rack. The system isnot able to make corrections for theadditional length of the accessories.
The system only applies the brakes for ashort period of time when an event occurs.Act as soon as you notice the brakes applyto remain in control of the vehicle. If youdo not intervene the vehicle may start tomove again.
Note:Certain add-on devices around thebumper or fascia may create false alerts.For example, large trailer hitches, bicycle orsurfboard racks, license plate brackets,bumper covers or any other device that mayblock the normal detection zone of thesystem. Remove the add-on device toprevent false alerts.
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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
BRAKING ASSIST ON AND OFF
- VEHICLES WITH: 12 INCH
SCREEN
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, cross traffic alert or tractioncontrol 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.
Note:The default setting is on in someregions.
SWITCHING REVERSE
BRAKING ASSIST ON AND OFF
- VEHICLES WITH: 15 INCH
SCREEN
1.Access the vehicle drawer on thetouchscreen.
2.Press SETTINGS.
3.Press Driver Assistance.
4.Switch Reverse Brake Assist on or off.
Note:The system is unavailable when therear parking aid, cross traffic alert or tractioncontrol 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.
Note:The default setting is on in someregions.
OVERRIDING REVERSE
BRAKING ASSIST
There could be instances whenunexpected or unwanted braking occurs.Firmly pressing the accelerator pedal orswitching the feature off overrides thesystem.
REVERSE BRAKING 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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REVERSE BRAKING ASSIST –FREQUENTLY ASKED QUESTIONS
Why is reverse braking assist unavailable?
•Make sure the reverse braking assist ison. See Switching Reverse BrakingAssist On and Off (page 236).
•Make sure that all doors, liftgate ortailgate and hood are closed. Drive thevehicle on a straight road for a shortperiod. If the message remains, havethe system checked.
•If your vehicle has the cross traffic alertsystem, make sure it is on. SeeSwitching Cross Traffic Alert Onand Off (page 326).
•Make sure the rear parking aid systemis on. See Parking Aids (page 261).
•Make sure the traction control is on.See Switching Traction Control Onand Off (page 245).
Note:The traction control automaticallyturns off if four-wheel drive low and certaindrive modes such as mud/ruts andsnow/sand is activated.
•Your vehicle may have sustained a rearend impact. Have the sensors checkedfor proper coverage and operation.
•An anti-lock brake, traction control orstability control event may haveoccurred. Reverse braking assistresumes operation when the event iscomplete.
•Make sure the rear view camera and360 degree camera are not dirty orobstructed. If dirty, clean the camera.If the message still appears aftercleaning the camera, wait a short timefor the message to clear. If themessage does not clear, have thesystem checked.
•Make sure the cross traffic alert, rearparking aid and side parking aid sensorsare not blocked or faulty. See Locatingthe Cross Traffic Alert Sensors(page 326). See Locating the RearParking Aid Sensors (page 262). SeeLocating the Side Parking AidSensors (page 264).
•You recently had your vehicle serviced,or the battery disconnected. Drive yourvehicle a short distance to resumesystem operation.
•Reverse braking assist does notfunction when you connect a trailer.Operation resumes when youdisconnect the trailer.
Note:If the answers to why the system isunavailable do not assist in returning reversebraking assist to available, have the systemchecked as soon as possible.
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WHAT IS CROSS TRAFFIC
BRAKING
The system is designed to reduce impactdamage or assist in avoiding a collision byusing the sensors on the rear of yourvehicle to detect a possible collision andapplying the brakes.
HOW DOES CROSS TRAFFIC
BRAKING WORK
The system only reacts for vehiclesapproaching from the sides when you shiftinto reverse (R).
If the system detects a vehicle approachingyour vehicle, it provides a warning throughthe cross traffic alert system. See What IsCross Traffic Alert (page 325).
The system only applies the brakes for ashort period of time when an event occurs.Take action as soon as you notice thesystem applying the brakes in order toremain in control of your vehicle, thesystem does not do this for you.
Note:You need to enable cross traffic alertfor the system to function.
CROSS TRAFFIC BRAKING
PRECAUTIONS
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: To help avoid personalinjury, always use caution when inreverse (R) and when using the sensingsystem.
WARNING: The system may notoperate properly during severe weatherconditions, for example snow, ice, heavyrain and spray. Always drive with duecare and attention. Failure to take caremay result in a crash.
WARNING: Do not use the systemwith accessories that extend beyond thefront or rear of your vehicle, for examplea trailer hitch or bike rack. The system isnot able to make corrections for theadditional length of the accessories.
WARNING: Some situations andobjects prevent hazard detection, forexample, inclement weather,unconventional vehicle types andpedestrians. Apply the brakes whennecessary. Failure to follow thisinstruction could result in the loss ofcontrol of your vehicle, personal injury ordeath.
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, switch the systemoff manually after you connect the trailer.
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CROSS TRAFFIC BRAKING –FREQUENTLY ASKED QUESTIONS
Why is cross traffic braking unavailable?
•Make sure the cross traffic alert systemis on. See Cross Traffic Alert (page325).
•The vehicle has sustained a rear endimpact. Contact an authorized dealerto have the sensors checked for propercoverage and operation.
•An ABS, traction control or stabilitycontrol event may have occurred. Crosstraffic braking resumes operation whenthe event is complete.
•Make sure there are no blocked orfaulted sensors. See Cross TrafficAlert (page 325).
•You recently had your vehicle serviced,or the battery disconnected. Drive yourvehicle a short distance to resumesystem operation.
Note:If the answers to why the system isunavailable do not assist in returning crosstraffic braking to available, have the systemchecked as soon as possible.
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PARKING AID PRECAUTIONS
WARNING: To help avoid personalinjury, always use caution when inreverse (R) and when using the sensingsystem.
WARNING: The system may notdetect objects with surfaces that absorbreflection. Always drive with due careand attention. Failure to take care mayresult in a crash.
WARNING: Traffic control systems,fluorescent lamps, inclement weather,air brakes, external motors and fans mayaffect the correct operation of thesensing system. This may cause reducedperformance or false alerts.
WARNING: The system may notdetect small or moving objects,particularly those close to the ground.
WARNING: The parking aid systemcan only assist you to detect objectswhen your vehicle is moving at parkingspeeds. To help avoid personal injury youmust take care when using the parkingaid system.
WARNING: The system may notfunction if the sensor is blocked.
WARNING: In cold and severeweather conditions the system may notfunction. Rain, snow and spray can alllimit sensor performance.
WARNING: If damage occurs in theimmediate area surrounding the sensor,have your vehicle checked as soon aspossible.
Note:If your vehicle sustains damageleaving the sensors misaligned, this willcause inaccurate measurements or falsealerts.
When you connect a trailer to your vehicle,the rear parking aid detects the trailer andprovides an alert. Disable the parking aidwhen you connect a trailer to prevent thealert.
Note:Connected trailers might be detectedby the vehicle and parking aid turns offautomatically in those instances.
Note:Certain add-on devices installedaround the bumper or fascia may createfalse alerts, for example, large trailerhitches, bike or surfboard racks, license platebrackets, bumper covers or any other devicethat could block the normal detection zoneof the parking aid system. Aftermarket sparetires or spare tire covers mounted to the reartailgate could cause false alerts from thepark aid system. Remove the add-on deviceto prevent false alerts.
Note: Keep the sensors free from snow, iceand large accumulations of dirt. If thesensors are covered, the system's accuracycan be affected.
Do not clean the sensors with sharpobjects.
Note: When using a programmed MyKey,you cannot switch the parking aids off. SeeMyKey™ (page 75).
SWITCHING PARKING AID ON
AND OFF
Press the parking aid button anduse the menu to turn the systemon and off.
The system can also be turned off usingthe pop-up message that appears whenyou are in reverse (R).
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REAR PARKING AID
WHAT IS THE REAR PARKING AID
Rear parking sensors detect objects behindyour vehicle when in reverse (R).
REAR PARKING AID LIMITATIONS
There is a decreased coverage area at theouter corners.
When using a programmed MyKey, youcannot switch the rear parking aid off.
The rear parking aid sensors are activewhen your vehicle is in reverse (R) and thevehicle speed is less than 5 mph (8 km/h).
The sensor coverage area is up to 71 in(180 cm) from the rear bumper.
The rear parking aid detects large objectswhen you shift into reverse (R) and any ofthe following occur:
•Your vehicle is moving backward at alow speed.
•Your vehicle is stationary but an objectis approaching the rear of your vehicleat a low speed.
•Your vehicle is moving backward at alow speed and an object is movingtowards your vehicle, for exampleanother vehicle at a low speed.
The system shall provide no audiblewarning for the object behind the vehiclewhen in neutral (N) gear.
LOCATING THE REAR PARKINGAID SENSORS
The rear parking aid sensors are in the rearbumper.
REAR PARKING AID AUDIBLEWARNINGS
A warning tone sounds when your vehicleapproaches an object. As your vehiclemoves closer to an object, the rate of thetone increases. The warning tonecontinuously sounds when an object is 12 in(30 cm) or less from the rear bumper.
If your vehicle remains stationary for a fewseconds, the audible warning turns off. Ifyour vehicle moves backward the tonesounds again.
Note:When the parking aid system soundsa tone, the audio system could reduce theset volume.
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