sensor LINCOLN NAVIGATOR 2019 Service Manual

The radar sensor has a limited field of view.It may not detect vehicles at all or detect avehicle later than expected in somesituations. The lead vehicle graphic does notilluminate if the system does not detect avehicle in front of you.
Detection issues can occur:
When driving on a different linethan the vehicle in front.A
With vehicles that edge into yourlane. The system can only detectthese vehicles once they movefully into your lane.
B
There may be issues with thedetection of vehicles in front whendriving into and coming out of abend or curve in the road.
C
In these cases, the system may brake late orunexpectedly. You should stay alert and takeaction when necessary.
If something hits the front end of your vehicleor damage occurs, the radar-sensing zonemay change. This could cause missed orfalse vehicle detection.
Optimal system performance requires a clearview of the road by the windshield-mountedcamera.
Optimal performance may not occur if:
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•The camera is blocked.
•There is poor visibility or lightingconditions.
•There are bad weather conditions.
System Not Available
Conditions that can cause the system todeactivate or prevent the system fromactivating when requested include:
•A blocked sensor.
•High brake temperature.
•A failure in the system or a relatedsystem.
Blocked SensorA message displays if something obstructsthe radar signals from the sensor. Thesensor is in the lower grille. The systemcannot detect a vehicle ahead and does notfunction when something blocks the sensor.
Note:You cannot see the sensor. It is behinda fascia panel.
Keep the front of your vehicle free of dirt,metal badges or objects. Vehicle frontprotectors and aftermarket lights may alsoblock the sensor.
Possible Causes and Actions for This Message Displaying:
ActionCause
Clean the grille surface in front of the radar or remove the objectcausing the obstruction.The surface of the radar is dirty or obstructed.
Wait a short time. It may take several minutes for the radar to detectthat it is free from obstruction.The surface of the radar is clean but the message remains in thedisplay.
Do not use the system in these conditions because it may not detectany vehicles ahead.Heavy rain or snow is interfering with the radar signals.
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DRIVER ALERT (IF EQUIPPED)
WARNING: The system is designedto aid the driver. It is not intended toreplace your attention and judgment. Youare still responsible to drive with due careand attention.
WARNING: At all times, you areresponsible for controlling your vehicle,supervising the system and intervening, ifrequired. Failure to take care may result inthe loss of control of your vehicle, seriouspersonal injury or death.
WARNING: The system may notfunction if the sensor is blocked.
WARNING: Take regular rest breaksif you feel tired. Do not wait for the systemto warn you.
WARNING: Certain driving styles mayresult in the system warning you even ifyou are not feeling tired.
WARNING: In cold and severeweather conditions the system may notfunction. Rain, snow and spray can all limitsensor performance.
WARNING: The system will notoperate if the sensor cannot track the roadlane markings.
WARNING: If damage occurs in theimmediate area surrounding the sensor,have your vehicle checked as soon aspossible.
WARNING: The system may notcorrectly operate if your vehicle is fittedwith a suspension kit not approved by us.
Note:Keep the windshield free fromobstructions. For example, bird droppings,insects and snow or ice.
Note:If the camera is blocked or if thewindshield is damaged, the system may notfunction.
Note:If enabled in the menu, the systemactivates at speeds above 40 mph (64 km/h).
The system automatically monitors yourdriving behavior using various inputsincluding the front camera sensor.
If the system detects that your drivingalertness is reduced below a certainthreshold, the system will alert you using achime and a message in the informationdisplay.
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Using Driver Alert
Switching the system on and off
You may switch the system on or off throughthe information display. See GeneralInformation (page 120). When activated, thesystem monitors your alertness level basedupon your driving behavior in relation to thelane markings, and other factors.
System Warnings
Note: The system does not issue warningsbelow approximately 40 mph (64 km/h).
The warning system is in two stages. At firstthe system issues a temporary warning thatyou need to take a rest. This message willonly appear for a short time. If the systemdetects further reduction in driving alertness,another warning may be issued which willremain in the information display for a longertime. Press OK on the steering wheel controlto clear the warning. When active the systemwill run automatically in the background andonly issue a warning if required.
Resetting the System
You can reset the system by either:
•Switching the ignition off and on.
•Stopping your vehicle and then openingand closing the driver’s door.
LANE KEEPING SYSTEM (IF EQUIPPED)
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.
WARNING: Always drive with duecare and attention when using andoperating the controls and features on yourvehicle.
WARNING: In cold and severeweather conditions the system may notfunction. Rain, snow and spray can all limitsensor performance.
WARNING: The system will notoperate if the sensor cannot track the roadlane markings.
WARNING: The sensor mayincorrectly track lane markings as otherstructures or objects. This can result in afalse or missed warning.
WARNING: Large contrasts in outsidelighting can limit sensor performance.
WARNING: The system may notoperate properly if the sensor is blocked.Keep the windshield free from obstruction.
WARNING: If damage occurs in theimmediate area surrounding the sensor,have your vehicle checked as soon aspossible.
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Note:The system does not operate in park(P) or reverse (R).
Vehicles with Manual Transmission
The system turns on when all of the followingoccur:
•You start your vehicle.
•The vehicle speed is greater than 6 mph(10 km/h).
Note:The system does not operate inreverse (R).
System Lights and Messages
When the system detects a vehicle, an alertindicator illuminates in the exterior mirror onthe side the approaching vehicle is comingfrom. If you turn the direction indicator on forthat side of your vehicle, the alert indicatorflashes.
Note:The system may not alert you if avehicle quickly passes through the detectionzone.
Blocked Sensors
The sensors are behind the rear bumper onboth sides of your vehicle.
Note:Keep the sensors free from snow, iceand large accumulations of dirt.
Note:Do not cover the sensors with bumperstickers, repair compound or other objects.
Note:Blocked sensors could affect systemperformance.
If the sensors become blocked, a messagemay appear in the information display. SeeInformation Messages (page 125). The alertindicators remain illuminated but the systemdoes not alert you.
Blind Spot Information System withTrailer Tow (If Equipped)
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•Box trailers that have a width greater than8.5 ft (2.6 m) at the front may cause earlyalerts when you pass a vehicle.
•Clam shell or V-Nose box trailers with awidth greater than 8.5 ft (2.6 m) at thefront may cause delayed alerts when avehicle traveling the same speed as yourvehicle merges lanes.
System Errors
If the system detects a fault, a warning lampilluminates and a message displays. SeeInformation Messages (page 125).
Switching the System On and Off
You can switch the system off using theinformation display. See General Information(page 120). When you switch the system off,a warning lamp illuminates and a messagedisplays. When you switch the system on oroff, the alert indicators flash twice.
Note:The system remembers the last settingwhen you start your vehicle.
Note:The system may not correctly operatewhen towing a trailer. For vehicles with atrailer tow module and tow bar approved byus, the system turns off when you attach atrailer. For vehicles with an aftermarkettrailer tow module or tow bar, werecommend that you switch the system offwhen you attach a trailer.
To permanently switch the system off,contact an authorized dealer.
CROSS TRAFFIC ALERT
WARNING: Do not use the crosstraffic alert system as a replacement forusing the interior and exterior mirrors orlooking over your shoulder beforereversing out of a parking space. The crosstraffic alert system is not a replacement forcareful driving.
WARNING: The system may notoperate properly during severe weatherconditions, for example snow, ice, heavyrain and spray. Always drive with due careand attention. Failure to take care mayresult in a crash.
The system is designed to alert you ofvehicles approaching from the sides whenyou shift into reverse (R).
Using the Cross Traffic Alert System
The system is designed to detect vehiclesthat approach with a speed up to 37 mph(60 km/h). Coverage decreases when thesensors are partially, mostly or fullyobstructed. Slowly reversing helps increasethe coverage area and effectiveness.
The system turns on when you start theengine and you shift into reverse (R). Thesystem turns off when you shift out of reverse(R).
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The sensor on the left-hand side is onlypartially obstructed and zone coverage onthe right-hand side is maximized.
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Zone coverage also decreases when parkingat narrow angles. The sensor on the left-handside is mostly obstructed and zone coverageon that side is severely reduced.
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System Lights, Messages and AudibleAlerts
When the system detects a vehicle, anindicator illuminates in the exterior mirror onthe side the approaching vehicle is comingfrom. A tone sounds and a message appearsin the information display.
Note:In exceptional conditions, the systemcould alert you even when there is nothingin the detection zone, for example a vehiclepassing in the distance.
Blocked Sensors
The sensors are behind the rear bumper onboth sides of your vehicle.
Note:Keep the sensors free from snow, iceand large accumulations of dirt.
Note:Do not cover the sensors with bumperstickers, repair compound or other objects.
Note:Blocked sensors could affect systemperformance.
If the sensors are blocked, a message mayappear in the information display when youshift into reverse (R). See InformationMessages (page 125).
System Limitations
The system may not correctly operate whenany of the following occur:
•The sensors are blocked.
•Adjacently parked vehicles or objects areobstructing the sensors.
•Vehicles approach at speeds greaterthan 37 mph (60 km/h).
•The vehicle speed is greater than 7 mph(12 km/h).
•You reverse out of an angled parkingspace.
System Errors
If the system detects a fault a messagedisplays. See General Information (page120).
Switching the System Off and On
You can temporarily switch the system offusing the information display. See GeneralInformation (page 120). When you switchsystem off, a message displays. SeeInformation Messages (page 125).
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Adjusting the Pre-Collision AssistSettings
You can adjust the following settings byusing the information display controls. SeeGeneral Information (page 120).
•You can adjust the Alert and DistanceAlert sensitivity to one of three possiblesettings.
•You can switch the Distance Indicationand Alert function on or off.
•If required, you can switch Active Brakingon or off.
Note:Active braking automatically turns onevery time you switch the ignition on.
Blocked Sensors
If a message regarding a blocked sensor orcamera appears in the information display,the radar signals or camera images areobstructed. The radar sensor is locatedbehind a fascia cover near the passengerside of the lower grille. With an obstructedradar, the Pre-Collision Assist system doesnot function and cannot detect a vehicleahead. With the front camera obstructed, thePre-Collision Assist system does not respondto pedestrians or stationary vehicles and thesystem performance on moving vehiclesreduces. The following table lists possiblecauses and actions for when this messagedisplays.
ActionCause
Clean the grille surface in front of the radar or remove the objectcausing the obstruction.The surface of the radar in the grille is dirty or obstructed in someway.
Wait a short time. It may take several minutes for the radar to detectthat there is no obstruction.The surface of the radar in the grille is clean but the message remainsin the display.
The Pre-Collision Assist system is temporarily disabled. Pre-CollisionAssist should automatically reactivate a short time after the weatherconditions improve.Heavy rain, spray, snow, or fog is interfering with the radar signals.
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