2018 LINCOLN NAVIGATOR maintenance

Maintenance
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Stop your vehicle as soon as safely possible, turn off the engine. Check the oil level. If the warningstays on or continues to come on with your engine running, contact an authorized dealer assoon as possible.
Low Engine Oil Pressure
The engine oil life remaining is 10% or less. See General Maintenance Information (page 552).Change Engine Oil Soon
The oil life left reaches 0%. See General Maintenance Information (page 552).Oil Change Required
The brake fluid level is low and the brake system should be inspected immediately. See BrakeFluid Check (page 372).Brake Fluid Level Low
The brake system needs servicing. Stop the vehicle in a safe place. Contact an authorized dealer.Check Brake System
The engine coolant temperature is excessively high.Engine Coolant Over Temperature
The washer fluid is low and needs to be refilled.Washer Fluid Level Low
Indicates that your vehicle is still in Transport mode. This may not allow some features to operateproperly. Contact an authorized dealer.Transport Mode Contact Dealer
Indicates that your vehicle is still in Factory mode. This may not allow some features to operateproperly. Contact an authorized dealer.Factory Mode Contact Dealer
Informs the driver that the powertrain needs service due to a powertrain malfunction.See Manual
The engine has reduced power to help reduce high engine temperature.Power Reduced to Lower Engine Temp
The brake system has reduced stopping power.Brake Applied Power Reduced
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Information Displays

Park Brake
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The parking brake is set, the engine is running and you drive your vehicle more than 3 mph(5 km/h). If the warning stays on after the parking brake is released, contact an authorized dealeras soon as possible.
Park Brake Engaged
The electric parking brake is set and a manual release is attempted without the brake pedalbeing pressed.To Release: Press Brake and Switch
The electric parking brake is set and an automatic release is attempted but cannot be performed.Perform a manual release.Park Brake Use Switch to Release
The electric parking brake is set and your vehicle speed exceeds 3 mph (5 km/h). Release parkbrake before continued driving.Release Park Brake
The electric parking brake is not fully applied.Park Brake Not Applied
The electric parking brake is not fully released.Park Brake Not Released
The electric parking brake system has been put into a special mode that is used to allow serviceof the rear brakes. Contact an authorized dealer.Park Brake Maintenance Mode
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Information Displays

Replace the filter at regular intervals. SeeScheduled Maintenance (page 552).
For additional cabin air filter information, orto replace the filter, see a qualifiedtechnician.
REMOTE START
The system adjusts the interior temperaturedepending on your chosen settings duringremote start.
You cannot adjust the climate control settingduring remote start operation. When youswitch the ignition on, the climate controlsystem returns to the previous settings. Youcan now make adjustments.
Some features may remain on if they turn onduring remote start:
•Driver heated seat.
•Driver ventilated seat.
•Heated steering wheel.
•Heated mirrors.
•Heated rear window.
•Windshield wiper de-icer.
Note:If the passenger heated or ventilatedseats are on when you switch the vehicleoff, they default to the driver setting whenyou switch the vehicle on.
You can adjust the default remote startsettings using the information displaycontrols. See Information Displays (page119).
Automatic Settings
In hot weather, the system sets to 72°F(22°C). The ventilated seats set to high (ifavailable, and if you select AUTO in theinformation display).
In moderate weather, the system heats orcools (based on pre-selected settings). Therear defroster, heated mirrors and heated orventilated seats do not turn on.
In cold weather, the system sets to 72°F(22°C). The heated seats and heated steeringwheel set to high (if available, and if youselect AUTO in the information display). Therear defroster and heated mirrors turn on.
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Climate Control

AUTO-START-STOP
The system helps reduce fuel consumptionby automatically stopping and restarting theengine when your vehicle has stopped. Theengine restarts automatically when yourelease the brake pedal.
In some situations, your vehicle may restartautomatically, for example:
•To maintain interior comfort.
•To recharge the battery.
Note:Power assist steering turns off whenthe engine is off.
Note:If your vehicle is flex fuel capable,Auto-Start-Stop is inhibited for a short timeafter a refuel event when the system isverifying the fuel type being used.
WARNING: Always fully apply theparking brake. Make sure you shift intopark (P) for vehicles with an automatictransmission. Switch the ignition off andremove the key whenever you leave yourvehicle.
WARNING: Before opening the hoodor performing any maintenance, fully applythe parking brake, shift into park (P) orneutral (N) and switch the ignition off.
WARNING: Always switch the ignitionoff before leaving the vehicle. If the ignitionis switched on an automatic restart mayoccur at any time.
WARNING: The system may requirethe engine to automatically restart whenthe auto-start-stop indicator illuminatesgreen or flashes amber. Failure to followthis instruction could result in personalinjury.
The Auto-Start-Stop system status isavailable at a glance within the informationdisplay. See Information Displays (page119).
Enabling Auto-Start-Stop
The system automatically enables every timeyou start your vehicle if:
•You do not press the Auto-Start-Stopbutton (not illuminated).
•Your vehicle exceeds an initial speed of3 mph (5 km/h) after you have initiallystarted your vehicle.
•You have stopped your vehicle.
•Your foot is on the brake pedal.
•The transmission is in drive.
•Not in Excite mode (enable by pressingthe Auto-Start-Stop button).
•The driver door is closed.
•There is adequate brake vacuum.
•The interior compartment has cooled orwarmed to an acceptable level.
•The front windshield defroster is off.
•You have not turned the steering wheelrapidly or you do not have it at a sharpangle.
•The vehicle is not on a steep road grade.
•The battery is within optimal operatingconditions, (with the battery state ofcharge and temperature in range).
•The engine coolant is at operatingtemperature.
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Unique Driving Characteristics

EMISSION LAW
WARNING: Do not remove or alterthe original equipment floor covering orinsulation between it and the metal floorof the vehicle. The floor covering andinsulation protect occupants of the vehiclefrom the engine and exhaust system heatand noise. On vehicles with no originalequipment floor covering insulation, do notcarry passengers in a manner that permitsprolonged skin contact with the metal floor.Failure to follow these instructions mayresult in fire or personal 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

•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 dryground cover. The emission system heatsup the engine compartment and exhaustsystem, creating the risk of fire.
WARNING: The normal operatingtemperature of the exhaust system is veryhigh. Never work around or attempt torepair any part of the exhaust system untilit has cooled. Use special care whenworking around the catalytic converter.The catalytic converter heats up to a veryhigh temperature after only a short periodof engine 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 yourvehicle, have your vehicle inspectedimmediately. Do not drive if you smellexhaust 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 329).
•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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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 202).
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