light LINCOLN MKZ 2019 Workshop Manual

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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Engine Emission Control

The scheduled maintenance items listed inscheduled maintenance information areessential to the life and performance of yourvehicle and to its emissions system.
If you use anything other than Lincoln,Motorcraft or Lincoln-authorized parts formaintenance replacements or for service ofcomponents affecting emission control, suchnon-Lincoln parts should be equivalent togenuine Lincoln Motor Company parts inperformance and durability.
Illumination of the service engine soonindicator, charging system warning light orthe temperature warning light, fluid leaks,strange odors, smoke or loss of enginepower could indicate that the emissioncontrol system is not working properly.
An improperly operating or damaged exhaustsystem may allow exhaust to enter thevehicle. Have a damaged or improperlyoperating exhaust system inspected andrepaired immediately.
Do not make any unauthorized changes toyour vehicle or engine. By law, vehicleowners and anyone who manufactures,repairs, services, sells, leases, tradesvehicles, or supervises a fleet of vehicles arenot permitted to intentionally remove anemission control device or prevent it fromworking. Information about your vehicle’semission system is on the Vehicle EmissionControl Information Decal located on or nearthe engine. This decal also lists enginedisplacement.
Please consult your warranty information forcomplete details.
On-Board Diagnostics (OBD-II)
Your vehicle has a computer known as theon-board diagnostics system (OBD-II) thatmonitors the engine’s emission controlsystem. The system protects the environmentby making sure that your vehicle continuesto meet government emission standards. TheOBD-II system also assists a servicetechnician in properly servicing your vehicle.
When the service engine soonindicator illuminates, the OBD-IIsystem has detected a malfunction.Temporary malfunctions may cause theservice engine soon indicator to illuminate.Examples are:
1. Your vehicle has run out of fuel—theengine may misfire or run poorly.
2.Poor fuel quality or water in the fuel—theengine may misfire or run poorly.
3. The fuel fill inlet may not have closedproperly. See Refueling (page 169).
4. Driving through deep water—theelectrical system may be wet.
You can correct these temporarymalfunctions by filling the fuel tank with goodquality fuel, properly closing the fuel fill inletor letting the electrical system dry out. Afterthree driving cycles without these or anyother temporary malfunctions present, theservice engine soon indicator should stay offthe next time you start the engine. A drivingcycle consists of a cold engine startupfollowed by mixed city and highway driving.No additional vehicle service is required.
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Engine Emission Control

AUTOMATIC TRANSMISSION
WARNING: Always fully apply theparking brake and make sure you shift intopark (P). Failure to follow this instructioncould result in personal injury or death.
WARNING: Do not apply the brakepedal and accelerator pedal simultaneously.Applying both pedals simultaneously formore than a few seconds will limit engineperformance, which may result in difficultymaintaining speed in traffic and could leadto serious injury.
Note:You may not be able to shift out ofpark (P) unless the intelligent access key isinside your vehicle.
Push Button Shift Transmission
Your vehicle is equipped with an electronictransmission. The shift buttons are locatednear the middle of the instrument panel. Thegears are selected by pressing and releasingthe PRNDS buttons.
Every time a gear is selected, the selectedbutton will light up.
Understanding the Positions of yourElectronic Transmission
Note:Always come to a complete stopbefore putting your vehicle into and out ofpark (P).
Putting your vehicle in gear:
1. Fully press down the brake pedal.
2. Press and release the button on theinstrument panel of the gear you want toselect.
3. The gearshift button you select willilluminate and the selected gear willappear in the instrument cluster.
4. Release the brake pedal and yourtransmission will remain in the selectedgear.
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Automatic Transmission AdaptiveLearning
This feature increases durability and providesconsistent shift feel over the life of yourvehicle. A new vehicle or transmission mayhave firm or soft shifts. This operation willnot affect function or durability of yourtransmission and is normal. Over time, theadaptive learning process will fully updatetransmission operation. Additionally, thestrategy must be relearned whenever thebattery is disconnected or a new battery isinstalled.
If Your Vehicle Gets Stuck In Mud orSnow
Note:Do not rock your vehicle if your engineis not at normal operating temperature ordamage to your transmission may occur.
Note:Do not rock your vehicle for more thana minute or damage to your transmissionand tires may occur, or your engine mayoverheat.
Note:If your vehicle is equipped withAdvanceTrac with Roll Stability Control, itmay be beneficial to disengage theAdvanceTrac with Roll Stability Controlsystem while attempting to rock the vehicle.
If your vehicle gets stuck in mud or snow,you can help rock your vehicle out by shiftingbetween forward and reverse gears,stopping between shifts in a steady pattern.Press lightly on the accelerator in each gear.
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Transmission

All-Wheel Drive Messages
Action / DescriptionAWD Messages
Displays when the system automatically disables to protect itself. Thismay be caused by operating the vehicle with the compact tire installed,if the system is overheating or if there is an issue with another vehiclesystem preventing AWD operation. The system resumes normaloperation and clears this message after cycling the ignition on andoff and driving a short distance with the road tire re-installed, afterthe system is allowed to cool or after the other vehicle system issuesare resolved.
AWD OFF
Displays in conjunction with the powertrain malfunction or reducedpower light when the system is not operating properly. If the messagestays on or continues to come on, contact your authorized dealer assoon as possible.
AWD Malfunction Service Required
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All-Wheel Drive (If Equipped)

If Your Vehicle Goes Off the Edge of thePavement
•If your vehicle goes off the edge of thepavement, slow down, but avoid severebrake application, ease the vehicle backonto the pavement only after reducingyour speed. Do not turn the steeringwheel too sharply while returning to theroad surface.
•It may be safer to stay on the apron orshoulder of the road and slow downgradually before returning to thepavement. You may lose control if youdo not slow down or if you turn thesteering wheel too sharply or abruptly.
•It often may be less risky to strike smallobjects, such as highway reflectors, withminor damage to your vehicle rather thanattempt a sudden return to the pavementwhich could cause the vehicle to slidesideways out of control or rollover.Remember, your safety and the safety ofothers should be your primary concern.
If Your Vehicle Gets Stuck
WARNING: Always set the parkingbrake fully and make sure you shift thegearshift lever to park (P). Switch the ignitionoff and remove the key whenever you leaveyour vehicle.
WARNING: If the parking brake is fullyreleased, but the brake warning lampremains illuminated, the brakes may not beworking properly. Have your vehicle checkedas soon as possible.
WARNING: Do not spin the wheels atover 34 mph (55 km/h). The tires may fail andinjure a passenger or bystander.
Note:Do not rock the vehicle if the engineis not at normal operating temperature ordamage to the transmission may occur.
Note:Do not rock the vehicle for more thana few minutes or damage to the transmissionand tires may occur or the engine mayoverheat.
If your vehicle gets stuck in mud or snow itmay be rocked out by shifting betweenforward and reverse gears, stoppingbetween shifts, in a steady pattern. Presslightly on the accelerator in each gear.
If your vehicle is equipped withAdvanceTrac® with Roll Stability Control™, itmay be beneficial to disengage theAdvanceTrac® with Roll Stability Control™system while attempting to rock the vehicle.
Emergency Maneuvers
•In an unavoidable emergency situationwhere a sudden sharp turn must bemade, remember to avoid "over-driving"your vehicle (that is, turn the steeringwheel only as rapidly and as far asrequired to avoid the emergency).Excessive steering will result in lessvehicle control, not more. Additionally,smooth variations of the acceleratorand/or brake pedal pressure should beutilized if changes in vehicle speed arecalled for. Avoid abrupt steering,
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All-Wheel Drive (If Equipped)

Once through water, always try the brakes.Wet brakes do not stop the vehicle aseffectively as dry brakes. Drying can beimproved by moving your vehicle slowlywhile applying light pressure on the brakepedal.
Be cautious of sudden changes in vehiclespeed or direction when you are driving inmud. Even AWD vehicles can lose tractionin slick mud. As when you are driving oversand, apply the accelerator slowly and avoidspinning your wheels. If the vehicle doesslide, steer in the direction of the slide untilyou regain control of the vehicle.
After driving through mud, clean off residuestuck to rotating driveshafts and tires. Excessmud stuck on tires and rotating driveshaftscauses an imbalance that could damagedrive components.
Note:Driving through deep water maydamage the transmission.
If the front or rear axle is submerged in water,have the power transfer unit (PTU) or rearaxle serviced by an authorized dealer.
Driving on Hilly or Sloping Terrain
Note:Avoid driving crosswise or turning onsteep slopes or hills. A danger lies in losingtraction, slipping sideways and possiblyrolling over. Whenever driving on a hill,determine beforehand the route you will use.Do not drive over the crest of a hill withoutseeing what conditions are on the other side.Do not drive in reverse over a hill withoutthe aid of an observer.
Although natural obstacles may make itnecessary to travel diagonally up or down ahill or steep incline, you should always try todrive straight up or straight down.
When climbing a steep slope or hill, start ina lower gear rather than downshifting to alower gear from a higher gear once theascent has started. This reduces strain onthe engine and the possibility of stalling.
If you do stall out, do not try to turnaroundbecause you might roll over. It is better toback down to a safe location.
Apply just enough power to the wheels toclimb the hill. Too much power will cause thetires to slip, spin or lose traction, resulting inloss of vehicle control.
Descend a hill in the same gear you woulduse to climb up the hill to avoid excessivebrake application and brake overheating. Donot descend in neutral; instead, disengageoverdrive or manually shift to a lower gear.When descending a steep hill, avoid suddenhard braking as you could lose control. Thefront wheels have to be turning in order tosteer the vehicle.
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GENERAL INFORMATION
Note: Occasional brake noise is normal. Ifa metal-to-metal, continuous grinding orcontinuous squeal sound is present, thebrake linings may be worn-out. Have thesystem checked by an authorized dealer. Ifyour vehicle has continuous vibration orshudder in the steering wheel while braking,have it checked by an authorized dealer.
Note:Brake dust may accumulate on thewheels, even under normal drivingconditions. Some dust is inevitable as thebrakes wear and does not contribute tobrake noise. See Cleaning the Wheels(page 326).
Note:Depending on applicable laws andregulations in the country for which yourvehicle was originally built, your brake lampsmay flash during heavy braking. Followingthis, your hazard lights may also flash whenyour vehicle comes to a stop.
See Warning Lamps andIndicators (page 105).
Wet brakes result in reduced brakingefficiency. Gently press the brake pedal afew times when driving from a car wash orstanding water to dry the brakes.
Brake Over Accelerator
In the event the accelerator pedal becomesstuck or entrapped, apply steady and firmpressure to the brake pedal to slow thevehicle and reduce engine power. If youexperience this condition, apply the brakesand bring your vehicle to a safe stop. Movethe transmission to park (P), switch theengine off and apply the parking brake. Inspect the accelerator pedal for anyinterference. If none are found and thecondition persists, have your vehicle towedto the nearest authorized dealer.
Brake Assist
Brake assist detects when you brake rapidlyby measuring the rate at which you press thebrake pedal. It provides maximum brakingefficiency as long as you press the pedal,and can reduce stopping distances in criticalsituations.
Anti-lock Brake System
This system helps you maintain steeringcontrol during emergency stops by keepingthe brakes from locking.
This lamp momentarily illuminateswhen you switch the ignition on. Ifthe light does not illuminate duringstart up, remains on or flashes, the systemmay be disabled. Have the system checkedby an authorized dealer. If the anti-lock brakesystem is disabled, normal braking is stilleffective.
If the brake warning lampilluminates when you release theparking brake, have the systemchecked by an authorized dealer. It alsoilluminates momentarily when you switch theignition on to confirm the lamp is functional.If it does not illuminate when you switch theignition on or begins to flash at any time,have the system checked by an authorizeddealer.
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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 system will turn off ifa malfunction is apparent. Failure to takecare may result in the loss of control of yourvehicle, serious personal injury or death.
Auto Hold uses your vehicle's brakes to holdyour vehicle at a stop once your vehicle hasreached a standstill condition. For example,Auto Hold can assist you while stopping attraffic lights or while in traffic jams by holdingthe brake pressure for you once you bringyour vehicle to a stop.
Switch Auto Hold off during vehicle or trailertowing.
Note:In case of a malfunction in the systemwhile Auto Hold actively holds the vehicle(for example, low power supply), a messageappears in the information display askingyou to press the brake pedal. If you see thismessage, press the brake pedalimmediately.
Note:Auto Hold only activates if the systemrecognizes it is applying enough brakepressure. On a steep hill or incline, you mayneed to make sure the brake pedal ispressed sufficiently to activate the Auto Holdsystem.
Note:In some cases, Auto Hold might handover to the parking brake. When the parkingbrake automatically applies, the red brakelamp appears. This is normal. When youpress the accelerator pedal, the drive awayrelease feature automatically releases theparking brake.
Note:Auto Hold works on all road grades.Press the Auto Hold button to switch thesystem on and off. The Auto Hold indicatorlight illuminates in the Auto Hold buttonwhen the system is on.
Note:You can only switch Auto Hold on ifyou close the door and fasten your seatbelt.
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Note:Auto Hold is last remembered afterignition. Auto Hold also suppresses while inReverse (R).
When Auto Hold is off, your vehicle behavesthe same as a vehicle without Auto Hold.
There is an Auto Hold indicator lamp in theinstrument cluster that has two modes, activeand unavailable:
The Auto Hold (ACTIVE) indicatorlight illuminates in the informationdisplay when the system holdsyour vehicle stationary. When in active mode,press the brake pedal and the Auto Holdbutton to switch Auto Hold off.
The Auto Hold (UNAVAILABLE)indicator light illuminates in theinformation display when thesystem is on but unavailable to hold yourvehicle (for example, during Active ParkAssist, Stay in Neutral Mode, or when youdo not fasten your seatbelt or close thedoor).
Note:Make sure you switch off Auto Holdor use the Stay in Neutral mode before youenter a car wash. See AutomaticTransmission (page 177).
Using Auto Hold
1. Bring your vehicle to a stop by pressingthe brake pedal. After coming to a stop,the green Auto Hold (ACTIVE) indicatorlamp illuminates in the informationdisplay.
2.Release the brake pedal. The Auto Hold(ACTIVE) indicator light remainsilluminated in the information display andAuto Hold will hold your vehicle at a stop.
3. When you press the accelerator pedal,Auto Hold releases the brakes and youwill be able to drive off. Once you driveoff, the green Auto Hold (ACTIVE)indicator no longer illuminates in theinformation display.
Note:The Stop/Start system (if equipped)may stop the engine when you press thebrake pedal. If this occurs, it will restart onceyou press the accelerator pedal. Auto Holdstill holds your vehicle at a standstill with theengine off.
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