2018 LINCOLN NAVIGATOR parking sensors

When the system is active, your vehicle willremain stationary on the slope for two tothree seconds after you release the brakepedal. This allows you time to move yourfoot from the brake to the accelerator pedal. The brakes release automatically when theengine has sufficient torque to prevent yourvehicle from rolling down the grade. This isan advantage when pulling away on a slope,for example from a car park ramp, trafficlights or when reversing uphill into a parkingspace.
The system will activate automatically on anyslope that will cause significant vehiclerollback. For vehicles with a manualtransmission, you can switch this feature offusing the information display. SeeInformation Displays (page 119). The systemwill remain on or off depending on how itwas last set.
Note:There is no warning lamp to indicatethe system is either on or off.
Note:If your vehicle is equipped with AutoHold, Hill Start Assist will not be availablewhile Auto Hold is active.
Using Hill Start Assist
1. Bring your vehicle to a completestandstill. Keep the brake pedal pressedand select an uphill gear (for example,drive (D) or first (1) when facing uphill orreverse (R) when facing downhill).
2. If the sensors detect that your vehicle ison a slope, the system will activateautomatically.
3. When you remove your foot from thebrake pedal, your vehicle will remain onthe slope without rolling away for abouttwo or three seconds. This hold time willautomatically be extended if you are inthe process of driving off.
4. Drive off in the normal manner. Thebrakes will release automatically.
Switching the System On and Off
You can switch this feature on or off if yourvehicle is equipped with a manualtransmission and an information display. SeeGeneral Information (page 119). The systemremembers the last setting when you startyour vehicle.
If your vehicle is not equipped with a manualtransmission and an information display, youcannot turn the system on or off. When youswitch the ignition on, the systemautomatically turns on.
AUTO HOLD
WARNING: The system does notreplace the parking brake. When you leaveyour vehicle, always apply the parkingbrake.
WARNING: You must remain in yourvehicle when the system turns on. At alltimes, you are responsible for controllingyour vehicle, supervising the system andintervening, if required. Failure to take caremay result in the loss of control of yourvehicle, serious personal injury or death.
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Brakes

PRINCIPLE OF OPERATION
WARNING: To help avoid personalinjury, always use caution when in reverse(R) and when using the sensing system.
WARNING: The system may notdetect objects with surfaces that absorbreflection. Always drive with due care andattention. Failure to take care may resultin a crash.
WARNING: Traffic control systems,inclement weather, air brakes, externalmotors and fans may affect the correctoperation of the sensing system.This maycause reduced performance or false alerts.
WARNING: The system may notdetect small or moving objects, particularlythose close to the ground.
Note:Certain add-on devices installedaround the bumper or fascia may createfalse beeps. For example, large trailerhitches, bike or surfboard racks, license platebrackets, bumper covers or any other devicethat may block the normal detection zoneof the system.
Note:Keep the sensors, located on thebumper or fascia, free from snow, ice andlarge accumulations of dirt. If the sensorsare covered, the system’s accuracy can beaffected. Do not clean the sensors with sharpobjects.
Note:If your vehicle sustains damage to thebumper or fascia, leaving it misaligned orbent, the sensing zone may be alteredcausing inaccurate measurement ofobstacles or false alarms. See yourauthorized technician.
Note:When a trailer is connected to yourvehicle, the rear parking aid may detect thetrailer and therefore provide warnings.Disable the rear parking aid when a traileris connected to prevent these warnings.
Note:The sensing system cannot be turnedoff when a MyKey is present. See Principleof Operation (page 68).
We recommend that you take some time toget to know the system and its limitations byreading this section.
The sensing system warns the driver ofobstacles within a certain range of yourvehicle. The system automatically turns oneach time you switch the ignition on.
When receiving a detection warning, theradio volume reduces to a predeterminedlevel. After the warning goes away, the radiovolume returns to the previous level.
You can turn the system on or offby pressing the parking aid button.If your vehicle does not have aparking aid button, the system can beswitched off through the information displaymenu or from the pop-up message thatappears once you shift the transmission intoreverse (R). See General Information (page119).
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If a fault is present in the system, a warningmessage appears in the information displayand does not allow you to switch the systemon. See Information Messages (page 124).
If a sensor is blocked and cannot function,the system becomes disabled and a warningmessage appears in the information display.The system returns to a normal state oncethe blockage is cleared.
REAR PARKING AID
The rear sensors are only active when thetransmission is in reverse (R). As your vehiclemoves closer to the obstacle, the rate of theaudible warning increases. When theobstacle is less than 12 in (30 cm) away, thewarning sounds continuously. If the systemdetects a stationary or receding objectfarther than 12 in (30 cm) from the corners ofthe bumper, the tone sounds for only threeseconds. Once the system detects an objectapproaching, the warning sounds again.
Coverage area of up to 6 ft (1.8 m) from therear bumper. There may be decreasedcoverage area at the outer corners of thebumper.
The system detects certain objects while thetransmission is in reverse (R) :
•Your vehicle is moving toward astationary object at a speed of 3 mph(5 km/h) or less.
•Your vehicle is not moving, but a movingobject is approaching the rear of yourvehicle at a speed of 3 mph (5 km/h) orless.
•Your vehicle is moving at a speed of lessthan 3 mph (5 km/h) and a moving objectis approaching the rear of your vehicleat a speed of less than 3 mph (5 km/h).
The system provides audio warnings onlywhen your vehicle is moving or when yourvehicle is stationary and the detectedobstacle is less than 12 in (30 cm) away fromthe bumper.
Obstacle Distance Indicator (If Equipped)
The system provides obstacle distanceindication through the information display.The distance indicator displays when thetransmission is in reverse (R).
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The indicator displays:
•As the distance to the obstacledecreases the indicator blocks illuminateand move towards the vehicle icon.
•If there is no obstacle detected, thedistance indicator blocks are grayed out.
FRONT PARKING AID
The front sensors are active when thetransmission is in any position other thanpark (P) and your vehicle is traveling at lowspeed.
Coverage area of up to 28 in (70 cm) fromthe front bumper. The coverage areadecreases at the outer corners.
When your vehicle approaches an object, awarning tone sounds. When your vehiclemoves closer to an object, the warning tonerepeat rate increases. The warning tonesounds continuously when an object is 12 in(30 cm) or less from the front bumper.
You can switch the system off through theinformation display menu or from the pop-upmessage that appears once you shift thetransmission into reverse (R). See GeneralInformation (page 119). If your vehicle has aparking aid button, you can switch thesystem off by pressing the button.
Obstacle Distance Indicator (If Equipped)
The system provides obstacle distanceindication through the information display.
The indicator displays:
•As the distance to the obstacledecreases the indicator blocks illuminateand move towards the vehicle icon.
•If there is no obstacle detected, thedistance indicator blocks are grayed out.
If the transmission is in reverse (R), the frontsensing system provides audio warningswhen your vehicle is moving and thedetected obstacle is moving towards yourvehicle. Once the vehicle is stationary, theaudio warning will be stopped after 2seconds. Visual indication is always presentin reverse (R).
If the transmission is in drive (D) or any otherforward gear (for example, low (L), sport (S)or any forward gear in a manualtransmission), the front sensing systemprovides audio and visual warnings whenyour vehicle is moving below a speed of5 mph (8 km/h) and an obstacle is located
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inside the detection area. Once the vehicleis stationary, the audio warning will bestopped after 2 seconds and the visualindication stops after 4 seconds. If theobstacles detected are within 12 in (30 cm),the visual indication remains on.
If the transmission is in neutral (N), thesystem provides visual indication only whenyour vehicle is moving at 5 mph (8 km/h) orbelow and an obstacle is located inside thedetection area. Once your vehicle isstationary, the visual indication will stop after4 seconds.
SIDE SENSING SYSTEM (IF EQUIPPED)
The side sensing system uses the front andrear side sensors to detect and mapobstacles within the vehicle's driving path,located near the sides of your vehicle. Theside sensors are active when thetransmission is in any position other thanpark (P).
Note:Obstacles that enter the side detectionarea without being detected and mappedby the front or rear side sensors will not bedetected.
Coverage area is up to 24 in (60 cm) fromthe sides of your vehicle.
When the system detects an object close tothe side of your vehicle, an audible warningsounds. As your vehicle moves closer toobstacles within the driving path of yourvehicle, the rate of the audible warningincreases.
Obstacle Distance Indicator (If Equipped)
The system provides obstacle distanceindication through the information display.
As the distance to the obstacle decreases,the indicator blocks illuminate and movetoward the vehicle icon. If there is noobstacle detected, the distance indicatorblocks show greyed out.
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When you shift to reverse (R), the sidesensing system provides audible warningswhen your vehicle is moving and obstaclesare detected within 24 in (60 cm) and areinside the driving path of your vehicle. Whenyou stop your vehicle the audible warningstops after two seconds.
Note:Visual distance indication remains onwhen the transmission is in reverse (R).
When you shift to drive (D) or any otherforward gear, for example, low (L), sport (S)or any forward gear in manual transmission,the side sensing system provides audibleand visual distance warnings when yourvehicle is moving below a speed of 5 mph(8 km/h) and obstacles are detected within24 in (60 cm) and are inside the driving pathof your vehicle. Once your vehicle reachesa standstill condition, the audible warningstops after two seconds and visual indicationstops after four seconds.
If the transmission is in neutral (N), the sidesensing system provides visual distanceindication only when your vehicle is movingbelow a speed of 5 mph (8 km/h) and thereis a front or rear parking aid obstacledetected, and the side obstacle is within24 in (60 cm) from the side of your vehicle.When you stop your vehicle the visualdistance indication stops after four seconds.
If the side sensing system is not available,the side distance indicator blocks do notappear.
The side sensing system is not availableunder the following condition:
•If you switch the traction control systemoff.
The side sensing system may not beavailable until you have driven approximatelythe length of your vehicle in order for thesystem to reinitialize if:
•You switch the ignition on, off and backon.
•Your vehicle remains stationary for overtwo minutes.
•The anti-lock brake system is activated.
•The traction control system is activated.
•When the steering wheel angleinformation is not available, the sidesensing system is not available. Thevehicle must be driven at least 492 ft(150 m) above 19 mph (30 km/h) torecover the steering wheel angleinformation.
ACTIVE PARK ASSIST (IF EQUIPPED)
WARNING: You must remain in yourvehicle when the system turns on. At alltimes, you are responsible for controllingyour vehicle, supervising the system andintervening, if required. Failure to take caremay result in the loss of control of yourvehicle, serious personal injury or death.
WARNING: The sensors may notdetect objects in heavy rain or otherconditions that cause interference.
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Parking Aids

WARNING: Active park assist doesnot apply the brakes under anycircumstances.
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 in theloss of control of your vehicle, personalinjury or death.
Active park assist is a multi-step process andmay require you to shift the transmissionmultiple times. Follow the onscreeninstructions until the parking maneuver iscomplete.
If you are uncomfortable with the proximityto any vehicle or object, you may choose tooverride the system by grabbing the steeringwheel, or by taking full control of your vehicleafter pressing the active park assist button.
Keep your hands, hair, clothing and anyloose items clear of the steering wheel whenusing active park assist.
The sensors are on the front and rearbumpers.
Note:Keep the sensors free from snow, iceand large accumulations of dirt.
Note:Do not cover up the sensors.
Note:Do not clean the sensors with sharpobjects.
Note:The sensors may not detect objectswith surfaces that absorb ultrasonic waves.The sensors may falsely detect objects dueto ultrasonic interference caused bymotorcycle exhausts, truck air brakes orhorns, for example.
Note:If you change any tires, the systemmust recalibrate and may not correctlyoperate for a short time.
The system may not correctly operate in anyof the following conditions:
•You use a spare tire or a tire that issignificantly worn more than the othertires.
•One or more tires are incorrectly inflated.
•You try to park on a tight curve.
•Something passes between the frontbumper and the parking space. Forexample, a pedestrian or cyclist.
•The edge of the neighboring parkedvehicle is high off the ground. Forexample, a bus, tow truck or flatbedtruck.
•The weather conditions are poor. Forexample, during heavy rain, snow, fog,high humidity and high temperatures.
Do not use the system if:
•You have attached an add-on accessoryclose to the sensors on the front or rearof your vehicle. For example, a bike rackor trailer.
•You have attached an overhangingobject to the roof. For example, asurfboard.
•The front bumper, rear bumper or theside sensors are damaged.
•The correct tire size is not in use on yourvehicle. For example, a mini-spare tire.
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Parking Aids

Troubleshooting
Possible CauseSymptom
You may have switched the traction control off.The system does not search for a parking space.
The transmission is in reverse (R). Your vehicle must be moving forward to be able todetect a parking space.
The sensors may be blocked. For example, snow, ice or dirt buildup. Blocked sensorscan affect how the system functions.The system does not offer a parking space.
There is not enough room in the parking space for your vehicle to safely park.
There is not enough space for the parking maneuver on the opposite side of the parkingspace.
The parking space is more than 5 ft (1.5 m) or less than 2 ft (0.5 m) away.
The vehicle speed is greater than 22 mph (35 km/h) for parallel parking or greater than19 mph (30 km/h) for perpendicular parking.
You recently disconnected or replaced the battery. After you reconnect the battery youmust drive your vehicle on a straight road for a short period of time.
Your vehicle is rolling in the opposite direction of the current transmission position. Forexample, rolling forward when in reverse (R).The system does not correctly position your vehiclein a parking space.
An irregular curb along the parking space prevents the system from correctly aligningyour vehicle.
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Parking Aids