2018 LINCOLN MKZ check engine light

Variations:
Note:The low fuel reminder can appear atdifferent fuel gauge positions depending onfuel economy conditions. This variation isnormal.
Engine Coolant Temperature Gauge
Indicates engine coolant temperature. Atnormal operating temperature, the levelindicator will be in the normal range. If theengine coolant temperature exceeds thenormal range, stop the vehicle as soon assafely possible, switch off the engine and letthe engine cool.
WARNING
Never remove the coolant reservoircap while the engine is running or hot.
WARNING LAMPS AND
INDICATORS
The following warning lamps and indicatorsalert you to a vehicle condition that maybecome serious. Some lamps illuminatewhen you start your vehicle to make surethey work. If any lamps remain on afterstarting your vehicle, refer to the respectivesystem warning lamp for further information.
Note:Some warning indicators appear inthe information display and operate thesame as a warning lamp but do notilluminate when you start your vehicle.
Adaptive Cruise Control Indicator (If
Equipped)
The speed control system indicatorlight changes color to indicatewhat mode the system is in: SeeUsing Adaptive Cruise Control (page 223).
On (white light): Illuminates when theadaptive cruise control system is turned on.Turns off when the speed control system isturned off.
Engaged (green light): Illuminates when theadaptive cruise control system is engaged.Turns off when the speed control system isdisengaged.
Anti-Lock Brake System Warning Lamp
If it illuminates when you aredriving, this indicates amalfunction. You will continue tohave the normal braking system (withoutABS) unless the brake system warning lampis also illuminated. Have the system checkedby your authorized dealer.
Auto Hold Active
It illuminates when the systemholds your vehicle stationary.
Auto Hold Unavailable
It illuminates when the system ison, but unavailable to hold yourvehicle stationary.
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Engine Coolant Temperature WarningLamp
Illuminates when the enginecoolant temperature is high. Stopthe vehicle as soon as possible,switch off the engine and let cool. SeeEngine Coolant Check (page 310).
Engine Oil
It illuminates when you switch theignition on.
If it illuminates when the engine isrunning this indicates a malfunction. Stopyour vehicle as soon as it is safe to do soand switch the engine off. Check the engineoil level. If the oil level is sufficient, thisindicates a system malfunction. Have yourvehicle checked immediately.
See Engine Oil Check (page 308).
Fasten Seatbelt Warning Lamp
It illuminates and a chime soundsuntil you fasten the seatbelts.
Front Airbag
If it fails to illuminate when youstart your vehicle, continues toflash or remains on, it indicates amalfunction. Have the system checked byyour authorized dealer.
Heads Up Display (If Equipped)
A red beam of lights will illuminateon the windshield in certaininstances when using adaptivecruise control and/or the collision warningsystem. It will also illuminate momentarilywhen you start your vehicle to make sure thedisplay works.
Headlamp High Beam Indicator
It will illuminate when you switchthe high beam headlamps on. Itwill flash when you use theheadlamp flasher.
Hood Ajar
Displays when the ignition is onand the hood is not completelyclosed.
Lane Keeping Aid Warning Lamp (If
Equipped)
It illuminates when the systemactivates.
Low Fuel Level Warning Lamp
It will illuminate when the fuel levelis low or the fuel tank is nearlyempty. Refuel as soon as possible.
Low Tire Pressure Warning Lamp
It illuminates when your tirepressure is low. If the lamp remainson with the engine running orwhen driving, check your tire pressure assoon as possible.
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The keyless starting system has threemodes:
•Off: Turns the ignition off.
•Without applying the brake pedal,press and release the button oncewhen the ignition is in the on mode,or when the vehicle is running but isnot moving.
•On: All electrical circuits are operationaland the warning lamps and indicatorsilluminate.
•Without applying the brake pedal,press and release the button once.
•Start: Starts the vehicle. The engine maynot start when the vehicle starts.
•Press the brake pedal, and then pressthe button until the vehicle starts. Anindicator light on the buttonilluminates when the ignition is onand when the vehicle starts.
STARTING A GASOLINE ENGINE
When you start the engine, the idle speedincreases, this helps to warm up the engine.If the engine idle speed does not slow downautomatically, have your vehicle checked byan authorized dealer.
Before starting the engine, check thefollowing:
•Make sure all occupants have fastenedtheir safety belts.
•Make sure the headlamps and electricalaccessories are off.
•Make sure the parking brake is on.
•Put the transmission in P.
Note:Do not touch the accelerator pedal.
1. Fully press the brake pedal.
2. Press the button.
The system does not function if:
•The key frequencies are jammed.
•The key battery has no charge.
If you are unable to start the engine, do thefollowing:
1. Remove the rubber covering (A) in thecupholder. With the buttons facingupward and the unlock button facing thefront of your vehicle, place the firstintelligent access key into the backupslot (B).
2. With the key in this position, press thebrake pedal, then the START button toswitch the ignition on and start yourvehicle.
Fast Restart
The fast restart feature allows you to restartthe engine within 20 seconds of switching itoff, even if a valid key is not present.
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4.Operate the fuel pump nozzle within thearea shown.
5. When you finish refueling slightly raisethe fuel pump nozzle and slowly removeit.
6. Fully close the fuel filler door.
Note: Do not attempt to start the engine ifyou have filled the fuel tank with incorrectfuel. Incorrect fuel use can cause damagenot covered by the vehicle Warranty. Haveyour vehicle immediately checked.
System Warnings (If Equipped)
If the fuel filler inlet does not fully close awarning message appears in the informationdisplay.
1.Stop your vehicle as soon as it is safe todo so and switch the engine off.
2. Shift into park (P) or neutral (N).
3. Apply the parking brake.
4. Fully open the fuel filler door.
5. Check the fuel filler inlet and the areaaround it for any items or debris that maybe obstructing its movement.
6.Fully insert a fuel pump nozzle or the fuelfiller funnel provided with your vehicleinto the fuel filler inlet. This action shoulddislodge any debris that may bepreventing the fuel filler inlet from fullyclosing.
7. Fully close the fuel filler door.
Note: If this action corrects the problem themessage may not immediately reset. If themessage remains and a warning lampilluminates, have your vehicle checked assoon as possible.
Fuel Filler Door Manual Override Lever
Note:The transmission must be in park (P)or neutral (N).
When using the manual override lever dothe following:
1. Switch the ignition on.
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EMISSION LAW
WARNING
Do not remove or alter the originalequipment floor covering or insulationbetween it and the metal floor of the vehicle.The floor covering and insulation protectoccupants of the vehicle from the engineand exhaust system heat and noise. Onvehicles 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

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
WARNINGS
Always set the parking brake fully andmake sure you shift the gearshift leverto park (P). Switch the ignition off and removethe key whenever you leave your vehicle.
If the parking brake is fully released,but the brake warning lamp remainsilluminated, the brakes may not be workingproperly. Have your vehicle checked as soonas possible.
Do not spin the wheels at over 34 mph(55 km/h). The tires may fail and injurea 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)

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 333).
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 106).
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 turn 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.
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Trailer lamps are required on most towedvehicles. Make sure all running lights, brakelights, turn signals and hazard lights areworking.
Before Towing a Trailer
Practice turning, stopping and backing up toget the feel of your vehicle-trailercombination before starting on a trip. Whenturning, make wider turns so the trailerwheels clear curbs and other obstacles.
When Towing a Trailer
•Do not drive faster than 70 mph(113 km/h) during the first 500 mi(800 km).
•Do not make full-throttle starts.
•Check your hitch, electrical connectionsand trailer wheel lug nuts thoroughly afteryou have traveled 50 miles (80kilometers).
•When stopped in congested or heavytraffic during hot weather, place thegearshift in position P to aid engine andtransmission cooling and to help A/Cperformance.
•Turn off the speed control with heavyloads or in hilly terrain. The speed controlmay turn off automatically when you aretowing on long, steep grades.
•Shift to a lower gear when driving downa long or steep hill. Do not apply thebrakes continuously, as they mayoverheat and become less effective.
•If your transmission is equipped with aGrade Assist or Tow/Haul feature, usethis feature when towing. This providesengine braking and helps eliminateexcessive transmission shifting foroptimum fuel economy and transmissioncooling.
•Allow more distance for stopping with atrailer attached. Anticipate stops andbrake gradually.
•Avoid parking on a grade. However, ifyou must park on a grade:
1. Turn the steering wheel to point yourvehicle tires away from traffic flow.
2. Set your vehicle parking brake.
3. Place the automatic transmission inposition P.
4. Place wheel chocks in front and back ofthe trailer wheels. (Chocks not includedwith vehicle.)
Launching or Retrieving a Boat orPersonal Watercraft (PWC)
Note:Disconnect the wiring to the trailerbefore backing the trailer into the water.
Note:Reconnect the wiring to the trailerafter removing the trailer from the water.
When backing down a ramp during boatlaunching or retrieval:
•Do not allow the static water level to riseabove the bottom edge of the rearbumper.
•Do not allow waves to break higher than6 in (15 cm) above the bottom edge ofthe rear bumper.
Exceeding these limits may allow water toenter vehicle components:
•Causing internal damage to thecomponents.
•Affecting driveability, emissions, andreliability.
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Towing