2018 LINCOLN MKZ HYBRID check engine light

Engine or Motor Coolant Temperature
Lights when the engine or motorcooling system is overheating.Stop your vehicle in a safe placeand have an authorized dealer check thesystem.
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 303).
Fasten Seatbelt Warning Lamp
It illuminates and a chime soundsuntil you fasten the seatbelts.
Front Airbag
Lights when you start your vehicle.If it continues to flash or remainson, it indicates a malfunction. Havean authorized dealer check the system.
Grade Assist
Lights when you switch on thegrade assist function.
Heads Up Display (If Equipped)
A red beam of lights appears onthe windshield in certain instanceswhen using adaptive cruise controland/or the collision warning system. To makesure the display works, it will also appearmomentarily when you start your vehicle.
Headlamp High Beam Indicator
Lights when you switch on thehigh-beam headlamps. Flasheswhen you use the headlampflasher.
Hood Ajar
Lights when the ignition is on andthe hood is not completely closed.
Lane Keeping Aid (If Equipped)
Lights when you activate the lanekeeping system.
Low Fuel Level Warning Lamp
Lights when the fuel level is low orthe fuel tank is nearly empty. 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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It also illuminates momentarily when youswitch the ignition on to confirm the lamp isfunctional. If it does not illuminate when youswitch the ignition on, or begins to flash atany time, have the system checked by yourauthorized dealer.
Low Washer Fluid Level Warning Lamp
Lights when the windshield washerfluid is low.
Parking Lamps
Lights when you switch on theparking lamps.
Powertrain Fault
Lights when your vehicle detectsa powertrain fault. Contact anauthorized dealer as soon aspossible.
Note:If your vehicle detects certain faults,it will not allow you to operate theaccelerator pedal. If this happens, press thebrake pedal and release it. This will activatelimp home vehicle operation. In limp homevehicle operation, your vehicle willaccelerate in a controlled manner up to amaximum speed of 35 mph (56 km/h) on aflat surface. If you apply the brake pedal ormove the transmission to neutral (N) you canoverride your vehicle’s acceleration.
Ready to Drive
Lights when you switch on yourvehicle and it is ready to drive. Acorresponding message maydisplay stating ready to drive.
Service Engine Soon
If it illuminates when the engine isrunning this indicates amalfunction. The On BoardDiagnostics system has detected amalfunction of the vehicle emission controlsystem.
If it flashes, engine misfire may be occurring. Increased exhaust gas temperatures coulddamage the catalytic converter or othervehicle components. Drive in a moderatefashion (avoid heavy acceleration anddeceleration) and have your vehicleimmediately serviced.
It illuminates when you switch the ignitionon prior to engine start to check the bulb andto indicate whether your vehicle is ready forInspection and Maintenance (I/M) testing.
Normally, it illuminates until the engine iscranked and automatically turns off if nomalfunctions are present. However, if after15 seconds it flashes eight times, thisindicates that your vehicle is not ready forInspection and Maintenance (I/M) testing.
See Catalytic Converter (page 188).
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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 the engine starts for the first time onyour drive, the idle speed increases, thishelps to warm up the engine. If the engineidle speed does not slow down automatically,have your vehicle checked by an authorizeddealer.
Note: You can crank the engine for a totalof 60 seconds without the engine startingbefore the starting system temporarilydisables. The 60 seconds does not have tobe all at once. For example, if you crank theengine three times for 20 seconds each time,without the engine starting, you reached the60-second time limit. A message appearsin the information display alerting you thatyou exceeded the cranking time. Youcannot attempt to start the engine for atleast 15 minutes.
Note: After 15 minutes, you are limited to a15-second engine cranking time. You needto wait 60 minutes before you can crank theengine for 60 seconds again.
Before starting your vehicle, check thefollowing:
•Make sure all occupants have fastenedtheir seatbelts.
•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 depress the brake pedal.
2. Press the button.
Note:The green ready indicator illuminatesletting you know that your vehicle is readyfor driving. Since your vehicle is equippedwith a silent key start, the engine may notstart when your vehicle starts. See HybridVehicle Operation (page 173).
The system does not function if:
•The key frequencies are jammed.
•The key battery has no charge.
If you are unable to start your vehicle, do thefollowing:
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Starting and Stopping the Engine

2.Insert the fuel pump nozzle up to the firstnotch on the nozzle A. Keep it restingon the cover of the fuel tank filler pipeopening.
3. Hold the fuel pump nozzle in position Bwhen refueling. Holding the nozzle inposition A can affect the flow of fuel andshut off the fuel nozzle before the tankis full.
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.
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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

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. Ifthe 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 325).
See Warning Lamps andIndicators (page 107).
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 rapidly brakeby measuring the rate at which you press thebrake pedal. It provides maximum brakingefficiency as long as you press the pedal. Brake assist can reduce stopping distancesin critical situations.
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 anti-lockbraking system may be disabled. Have thesystem checked by an authorized dealer. Ifthe anti-lock brake system is disabled,normal braking is still effective.
If the brake warning lampilluminates when you release theparking brake, have your systemchecked by an authorized dealer.
Regenerative Braking System
This feature is used to simulate the enginebraking of an internal combustion engineand assist the standard brake system whilerecovering some of the energy of motion andstoring it in the battery to improve fueleconomy. The standard brake system isdesigned to fully stop the car if regenerativebraking is not available. During regenerative
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BREAKING-IN
You need to break in new tires forapproximately 300 mi (480 km). During thistime, your vehicle may exhibit some unusualdriving characteristics. The engine alsoneeds to break in. Avoid hard accelerationsand driving too fast for the first 1,000 mi(1,600 km). If possible, avoid carrying heavyloads up steep grades during the break-inperiod.
ECONOMICAL DRIVING
Fuel economy is affected by several thingssuch as how you drive, the conditions youdrive under and how you maintain yourvehicle.
There are some things to keep in mind thatmay improve your fuel economy:
•Accelerate and slow down in a smooth,moderate fashion.
•Drive at steady speeds.
•Anticipate stops; slowing down mayeliminate the need to stop.
•Combine errands and minimizestop-and-go driving (When runningerrands, go to the furthest destinationfirst and then work your way back home).
•Close the windows for high-speeddriving.
•Drive at reasonable speeds.
•Keep the tires properly inflated and useonly the recommended size.
•Use the recommended engine oil.
•Perform all regularly scheduledmaintenance.
There are also some things you may want toavoid doing because they reduce your fueleconomy:
•Avoid sudden or hard accelerations.
•Avoid revving the engine before turningoff the car.
•Avoid long idle periods.
•Do not warm up your vehicle on coldmornings.
•Reduce the use of air conditioning andheat.
•Avoid using speed control in hilly terrain.
•Do not rest your foot on the brake pedalwhile driving.
•Avoid carrying unnecessary weight.
•Avoid adding particular accessories toyour vehicle (e.g. bug deflectors,rollbars/light bars, running boards, skiracks).
•Avoid driving with the wheels out ofalignment.
DRIVING THROUGH WATER
WARNING
Do not drive through flowing or deepwater as you may lose control of yourvehicle.
Note:Driving through standing water cancause vehicle damage.
Note:Engine damage can occur if waterenters the air filter.
Before driving through standing water, checkthe depth. Never drive through water that ishigher than the bottom of the front rockerarea of your vehicle.
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Driving Hints

Note: When you try to restart your vehicleafter a fuel shutoff, the vehicle makes surethat various systems are safe to restart. Once the vehicle determines the systemsare safe, then the vehicle allows you torestart.
Note:In the event that your vehicle does notrestart after your third attempt, contact aqualified technician.
The fuel pump shutoff stops the flow of fuelto the engine in the event of a moderate tosevere crash. Not every impact causes ashutoff.
Should your vehicle shut off after a crash,you may restart your vehicle.
1. Press START/STOP to switch off yourvehicle.
2.Press the brake pedal and START/STOPto switch on your vehicle.
3. Check the information display for theReady to Drive light as the gasolineengine may not start, but the electricmotor may be running. If you do not seethe Ready to Drive light, repeat Steps 1and 2 up to two more times.
JUMP STARTING THE VEHICLE
WARNINGS
Batteries normally produce explosivegases which can cause personal injury.Therefore, do not allow flames, sparks orlighted substances to come near the battery.When working near the battery, always shieldyour face and protect your eyes. Alwaysprovide correct ventilation.
Keep batteries out of reach of children.Batteries contain sulfuric acid. Avoidcontact with skin, eyes or clothing. Shieldyour eyes when working near the battery toprotect against possible splashing of acidsolution. In case of acid contact with skin oreyes, flush immediately with water for aminimum of 15 minutes and get promptmedical attention. If acid is swallowed, call aphysician immediately.
Use only adequately sized cables withinsulated clamps.
Preparing Your Vehicle
Do not attempt to push-start your automatictransmission vehicle.
Note:Attempting to push-start a vehicle withan automatic transmission may causetransmission damage.
Note:Use only a 12-volt supply to start yourvehicle.
Note:Do not disconnect the battery of thedisabled vehicle as this could damage thevehicle electrical system.
Park the booster vehicle close to the hoodof the disabled vehicle, making sure the twovehicles do not touch.
Connecting the Jumper Cables
WARNINGS
Do not connect the end of the secondcable to the negative (-) terminal of thebattery to be jumped. A spark may cause anexplosion of the gases that surround thebattery.
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Roadside Emergencies