2019 LINCOLN MKZ sensor

EMISSION LAW
WARNING: Do not remove or alter theoriginal equipment floor covering orinsulation between it and the metal floor ofthe vehicle. The floor covering and insulationprotect occupants of the vehicle from theengine and exhaust system heat and noise.On vehicles with no original equipment floorcovering insulation, do not carry passengersin a manner that permits prolonged skincontact with the metal floor. Failure to followthese instructions may result in fire orpersonal injury.
U.S. federal laws and certain state lawsprohibit removing or rendering inoperativeemission control system components. Similarfederal or provincial laws may apply inCanada. We do not approve of any vehiclemodification without first determiningapplicable laws.
Tampering with emissions controlsystems including related sensorsor the Diesel Exhaust Fluid systemcan result in reduced engine power and theillumination of the service engine soon light.
Tampering With a Noise ControlSystem
Federal laws prohibit the following acts:
•Removal or rendering inoperative by anyperson other than for purposes ofmaintenance.
•Repair or replacement of any device orelement of the design incorporated intoa new vehicle for the purpose of noisecontrol prior to its sale or delivery to theultimate purchaser or while it is in use.
•The use of the vehicle after any personremoves or renders inoperative anydevice or element of the design.
The U.S. Environmental Protection Agencymay presume to constitute tampering asfollows:
•Removal of hood blanket, fender apronabsorbers, fender apron barriers,underbody noise shields or acousticallyabsorptive material.
•Tampering or rendering inoperative theengine speed governor, to allow enginespeed to exceed manufacturerspecifications.
If the engine does not start, runs rough,experiences a decrease in engineperformance, experiences excess fuelconsumption or produces excessive exhaustsmoke, check for the following:
•A plugged or disconnected air inletsystem hose.
•A plugged engine air filter element.
•Water in the fuel filter and waterseparator.
•A clogged fuel filter.
•Contaminated fuel.
•Air in the fuel system, due to looseconnections.
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•An open or pinched sensor hose.
•Incorrect engine oil level.
•Incorrect fuel for climatic conditions.
•Incorrect engine oil viscosity for climacticconditions.
Note:Some vehicles have a lifetime fuel filterthat is integrated with the fuel tank. Regularmaintenance or replacement is not needed.
Note:If these checks do not help you correctthe concern, have your vehicle checked assoon as possible.
Noise Emissions Warranty, ProhibitedTampering Acts and Maintenance
On January 1, 1978, Federal regulationbecame effective governing the noiseemission on trucks over 10,000 lb (4,536 kg)Gross Vehicle Weight Rating (GVWR). Thepreceding statements concerning prohibitedtampering acts and maintenance, and thenoise warranty found in the Warranty Guide,are applicable to complete chassis cabs over10,000 lb (4,536 kg) GVWR.
CATALYTIC CONVERTER
WARNING: Do not park, idle or driveyour vehicle on dry grass or other dry groundcover. The emission system heats up theengine compartment and exhaust system,creating the risk of fire.
WARNING: The normal operatingtemperature of the exhaust system is veryhigh. Never work around or attempt to repairany part of the exhaust system until it hascooled. Use special care when workingaround the catalytic converter. The catalyticconverter heats up to a very hightemperature after only a short period ofengine operation and stays hot after theengine is switched off.
WARNING: Exhaust leaks may resultin entry of harmful and potentially lethalfumes into the passenger compartment. Ifyou smell exhaust fumes inside your vehicle,have your vehicle inspected immediately. Donot drive if you smell exhaust fumes.
Your vehicle has various emission controlcomponents and a catalytic converter thatenables it to comply with applicable exhaustemission standards.
To make sure that the catalytic converter andother emission control components continueto work properly:
•Do not crank the engine for more than10 seconds at a time.
•Do not run the engine with a spark pluglead disconnected.
•Do not push-start or tow-start yourvehicle. Use booster cables. See JumpStarting the Vehicle (page 264).
•Use only the specified fuel listed.
•Do not switch the ignition off when yourvehicle is moving.
•Avoid running out of fuel.
•Have the items listed in scheduledmaintenance information performedaccording to the specified schedule.
Note:Resulting component damage maynot be covered by the vehicle Warranty.
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PRINCIPLE OF OPERATION
WARNING: Vehicle modificationsinvolving braking system, aftermarket roofracks, suspension, steering system, tireconstruction and wheel and tire size maychange the handling characteristics of yourvehicle and may adversely affect theperformance of the electronic stability controlsystem. In addition, installing any stereoloudspeakers may interfere with andadversely affect the electronic stabilitycontrol system. Install any aftermarket stereoloudspeaker as far as possible from the frontcenter console, the tunnel, and the frontseats in order to minimize the risk ofinterfering with the electronic stability controlsensors. Reducing the effectiveness of theelectronic stability control system could leadto an increased risk of loss of vehicle control,vehicle rollover, personal injury and death.
WARNING: Remember that evenadvanced technology cannot defy the lawsof physics. It’s always possible to lose controlof a vehicle due to inappropriate driver inputfor the conditions. Aggressive driving on anyroad condition can cause you to lose controlof your vehicle increasing the risk of personalinjury or property damage. Activation of theelectronic stability control system is anindication that at least some of the tires haveexceeded their ability to grip the road; thiscould reduce the operator’s ability to controlthe vehicle potentially resulting in a loss ofvehicle control, vehicle rollover, personalinjury and death. If your electronic stabilitycontrol system activates, SLOW DOWN.
The system automatically turns on each timeyou switch the ignition on.
If a fault occurs in either the stability controlor the traction control system, you mayexperience the following conditions:
•The stability and traction control lightilluminates steadily.
•The stability control and traction controlsystems do not enhance your vehicle'sability to maintain traction of the wheels.
If a driving condition activates either thestability control or the traction control systemyou may experience the following conditions:
•The stability and traction control lightflashes.
•Your vehicle slows down.
•Reduced engine power.
•A vibration in the brake pedal.
•The brake pedal is stiffer than usual.
•If the driving condition is severe and yourfoot is not on the brake, the brake pedalmay move as the system applies higherbrake force.
The stability control system has severalfeatures built into it to help you maintaincontrol of your vehicle:
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Stability Control

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 not detectobjects with surfaces that absorb reflection.Always drive with due care and attention.Failure to take care may result in 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 not detectsmall or moving objects, particularly thoseclose to the ground.
Note:If your vehicle is equipped withMyKey™, the sensing system cannot beturned off when a MyKey™ is present. SeePrinciple of Operation (page 62).
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 alerts.
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 may block the normal detection zoneof the system. Remove the add-on device toprevent false alerts.
Note:When a trailer is connected to yourvehicle, the rear parking aid may detect thetrailer and therefore provide an alert. Disablethe rear parking aid when a trailer isconnected to prevent the alert.
The sensing system warns the driver ofobstacles within a certain range of yourvehicle. The system turns on automaticallywhenever you switch the ignition on.
The system can be switched off through theinformation display menu or from the pop-upmessage that appears once you shift thetransmission into reverse (R). See GeneralInformation (page 110).
If a fault is present in the system, a warningmessage appears in the information display.See Information Messages (page 116).
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.
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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).
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 (If Equipped)
The front sensors are active when thetransmission is in any position other thanpark (P) and your vehicle is traveling at lowspeed.
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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 110). 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
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
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).
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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.
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.
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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 not detectobjects in heavy rain or other conditions thatcause interference.
WARNING: Active park assist does notapply the brakes under any circumstances.
WARNING: You are responsible forcontrolling your vehicle at all times. Thesystem is designed to be an aid and doesnot relieve you of your responsibility to drivewith due care and attention. Failure to followthis instruction could result in the loss ofcontrol of your vehicle, personal injury ordeath.
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.
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