2018 LINCOLN MKZ HYBRID service

ActionMessage
Displays to request the operator to apply the brake as needed by the transmission.Press Brake Pedal
Displays when the brake pedal needs to be depressed to enable the transmission to shift frompark.Depress Brake to Shift from Park
Displays when the neutral button N needs to be pressed again to enter neutral hold. See Auto-matic Transmission (page 194).Press N again to Enter Stay in NeutralMode
Displays when neutral hold is active. See Automatic Transmission (page 194).Stay in Neutral Mode Engaged
Displays when neutral hold is active. See General Information (page 112).Stay in Neutral Tow Engaged See Manualto Disable
Displays when there is a system fault and the park brake needs to be depressed before exitingthe vehicle. See your authorized dealer.SHIFT SYS FAULT Confirm Park BrakeApply Before Exiting the Vehicle
Displays when there is a system fault and the park brake needs to be depressed before exitingthe vehicle. See your authorized dealer.SHIFT SYS FAULT Cannot Shift Trans UsePark Brake to Secure Vehicle
See your authorized dealer.SHIFT SYS FAULT Service Required
Displays when there is a system fault while the vehicle is shifting to park. See your authorizeddealer.SHIFT SYS FAULT Vehicle is Shifting toPark
Displays when there is a system fault while the vehicle is shifting to reverse. See your authorizeddealer.SHIFT SYS FAULT Reverse UnavailableService Required
See your authorized dealer.SHIFT SYS FAULT Drive Unavailable SelectL for Drive Service Required
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Information Displays

ActionMessage
See your authorized dealer.SHIFT SYS FAULT Neutral UnavailableService Required
See your authorized dealer.SHIFT SYS FAULT Low Unavailable ServiceRequired
Displays when neutral tow is active and the ignition needs to be turned off. See Towing theVehicle on Four Wheels (page 260).Neutral Tow Engaged Turn Ignition Off forTowing
Displays while attempting to exit neutral tow. The brake pedal needs to be depressed and parkbutton selected to deactivate. See Towing the Vehicle on Four Wheels (page 260).Neutral Tow Engaged Depress Brake andSelect Park to Exit Neutral Tow
Displays when neutral tow is active and the park brake needs to be released. See Towing theVehicle on Four Wheels (page 260).Neutral Tow Remove Park Brake forTowing
Displays when neutral tow has been deactivated.Neutral Tow Disengaged
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Information Displays

AnswerQuestion
In order to make sure that the climate control system can begin heatingthe cabin or defrosting the windshield as soon as a driver requestsit, the engine coolant temperature has to be kept sufficiently hot.Keeping the engine on is required to maintain the correct coolanttemperature.
Why does my engine stay on when it is extremely cold outside?
Your vehicle's engine and transmission are designed to deliver thepower you need at the most efficient engine speed. This may behigher than expected during heavy accelerations, and may fluctuatewhen driving at a steady speed. These are characteristics of theAtkinson engine cycle and the transmission technology that helpmaximize your hybrid's fuel economy.
Why does my engine rev up so high sometimes when I accelerate?
The fan noise comes from a fan located next to the high voltagebattery pack. This fan turns on when the battery requires cooling air.The fan speed, and associated noise level, will change according tothe amount of cooling required to maintain good performance. Main-taining the battery temperature at optimal conditions also prolongsthe useful life of the battery and helps to achieve better fuel economy.
What is the fan noise I hear from the rear of my hybrid?
Change the engine oil every 10,000 mi (16,000 km) or once per yearunder normal operating conditions.What is the engine oil change service interval?
Your hybrid vehicle can use E15 (15% ethanol, 85% gasoline) fuel, butyou may notice slightly reduced fuel economy because ethanolcontains less energy per gallon than gasoline. Your hybrid vehicle isnot designed to use E85 (85% ethanol).
Can I put E15 or E85 in my vehicle, and how will it affect my fueleconomy?
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Unique Driving Characteristics

Note:When the fuel level is less thanone-quarter full, refueling your vehicle willend fuel freshness mode.
Note:We recommend you use a fuelstabilizer if you use less than a full tank offuel during an 18-month period.
FUEL FILLER FUNNEL LOCATION
The fuel filler funnel is under the luggagecompartment floor covering.
RUNNING OUT OF FUEL
Avoid running out of fuel because thissituation may have an adverse effect onvehicle components.
If you have run out of fuel:
•To start the vehicle with a keylessignition, just start the engine. Crank timewill be longer than usual.
•Normally, adding 1 gal (3.8 L) of fuel isenough to restart the vehicle. If thevehicle is out of fuel and on a steepgrade, more than 1 gal (3.8 L) may berequired.
•The service engine soon indicator maycome on.
Refilling With a Portable Fuel Container
WARNINGS
Flow of fuel through a fuel pump nozzlecan produce static electricity. This cancause a fire if you are filling an ungroundedfuel container.
Do not insert the nozzle of a fuelcontainer or an aftermarket funnel intothe fuel filler neck. This may damage the fuelsystem filler neck or its seal and cause fuelto run onto the ground.
WARNINGS
Do not try to pry open or push openthe capless fuel system with foreignobjects. This could damage the fuel systemand its seal and cause injury to you or others.
Note:Do not use aftermarket funnels; theywill not work with the capless fuel systemand can damage it. The included speciallydesigned funnel works safely with yourvehicle.
When filling the vehicle’s fuel tank from aportable fuel container, use the funnelincluded with the vehicle.
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Fuel and RefuelingE163066

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

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 Ford,Motorcraft or Ford-authorized parts formaintenance replacements or for service ofcomponents affecting emission control, suchnon-Ford parts should be equivalent togenuine Ford 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 182).
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

If the service engine soon indicator remainson, have your vehicle serviced at the firstavailable opportunity. Although somemalfunctions detected by the OBD-II may nothave symptoms that are apparent, continueddriving with the service engine soon indicatoron can result in increased emissions, lowerfuel economy, reduced engine andtransmission smoothness and lead to morecostly repairs.
Readiness for Inspection andMaintenance (I/M) Testing
Some state and provincial and localgovernments may haveInspection/Maintenance (I/M) programs toinspect the emission control equipment onyour vehicle. Failure to pass this inspectioncould prevent you from getting a vehicleregistration.
If the service engine soon indicatoris on or the bulb does not work,your vehicle may need service.See On-Board Diagnostics.
Your vehicle may not pass the I/M test if theservice engine soon indicator is on or notworking properly (bulb is burned out), or ifthe OBD-II system has determined that someof the emission control systems have notbeen properly checked. In this case, thevehicle is not ready for I/M testing.
If the vehicle’s engine or transmission hasjust been serviced, or the battery hasrecently run down or been replaced, theOBD-II system may indicate that the vehicleis not ready for I/M testing. To determine ifthe vehicle is ready for I/M testing, turn theignition key to the on position for 15 secondswithout cranking the engine. If the serviceengine soon indicator blinks eight times, itmeans that the vehicle is not ready for I/Mtesting; if the service engine soon indicatorstays on solid, it means that your vehicle isready for I/M testing.
The OBD-II system checks the emissioncontrol system during normal driving. Acomplete check may take several days.
If the vehicle is not ready for I/M testing, youcan perform the following driving cycleconsisting of mixed city and highway driving:
1. 15 minutes of steady driving on anexpressway or highway followed by 20minutes of stop-and-go driving with atleast four 30-second idle periods.
2.Allow your vehicle to sit for at least eighthours with the ignition off. Then, start thevehicle and complete the above drivingcycle. The vehicle must warm up to itsnormal operating temperature. Oncestarted, do not turn off the vehicle untilthe above driving cycle is complete.
If the vehicle is still not ready for I/M testing,you need to repeat the above driving cycle.
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Engine Emission Control

GENERAL INFORMATION
WARNING
This battery pack should only beserviced by an authorized electricvehicle technician. Improper handling canresult in personal injury or death.
Note:The high voltage battery does notrequire regular service maintenance.
Your vehicle consists of various high voltagecomponents and wiring. All of the highvoltage power flows through specific wiringassemblies which are labeled as such or thatare covered with a solid orange convolute,orange striped tape or both. Do not come incontact with these components.
The high voltage battery system is a highvoltage, lithium-ion battery system. The packis located in the rear cargo area. The highvoltage battery system uses an air-cooledsystem to regulate the high voltage batterytemperature and help maximize high voltagebattery life.
Note:The high voltage battery is equippedwith air vents in the package tray that helpto regulate its temperature. It is important tokeep these openings free of obstructions.Do not block the flow of cabin air to thisarea.
HIGH VOLTAGE SERVICEDISCONNECT
The high voltage service disconnect turnsoff power from the high voltage battery.
There is a disconnect circuit in your vehicle.Disconnecting the circuit will automaticallydisable the high voltage battery.
To disable the battery and stop all highvoltage electric activity in the vehicle, youcan access the high voltage disconnectcircuit. To do this, you must unplug the circuitfrom the circuit port connected to the battery.
The service disconnect is equipped with anouter lever. This is to aid in properly seatingthe service disconnect lever. Remove this todisconnect the high voltage servicedisconnect.
The high voltage service disconnect islocated behind the rear fold down seats.
Disabling the High Voltage Battery
1. Fold down the rear seats.
2. Locate the access door and remove theplastic cover.
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High Voltage BatteryE159505