2019 LINCOLN NAVIGATOR Fuel

9. Fully close the fuel filler door.
Note:The message may not immediatelyreset. If the message continues to appearand a warning lamp illuminates, have yourvehicle checked as soon as possible.
FUEL CONSUMPTION
Advertised Capacity
The advertised capacity is the maximumamount of fuel that you can add to the fueltank after running out of fuel. Included in theadvertised capacity is an empty reserve. Theempty reserve is an unspecified amount offuel that remains in the fuel tank when thefuel gauge indicates empty.
Note:The amount of fuel in the emptyreserve varies and should not be relied uponto increase driving range.
Fuel Economy
Your vehicle calculates fuel economy figuresthrough the trip computer average fuelfunction.
The first 1,000 mi (1,500 km) of driving is thebreak-in period of the engine. A moreaccurate measurement is obtained after2,000 mi (3,000 km).
Impacting Fuel Economy
•Incorrect tire inflation pressures.
•Fully loading your vehicle.
•Carrying unnecessary weight.
•Adding certain accessories to yourvehicle such as bug deflectors, rollbarsor light bars, running boards and skiracks.
•Using fuel blended with alcohol. SeeFuel Quality (page 200).
•Fuel economy may decrease with lowertemperatures.
•Fuel economy may decrease whendriving short distances.
•You may get better fuel economy whendriving on flat terrain than when drivingon hilly terrain.
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Fuel and Refueling

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 328).
•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 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 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

Note:This only functions if your 12-voltbattery has power and the starter can spinthe engine. If vehicle battery voltage is notsufficient, an external 12-volt power sourcesuch as jumper cables, battery charger orjump pack may be required for this featureto function.
Note:Once in this mode, sufficient batteryvoltage must be maintained or your vehiclereturns to park.
WARNING: When doing thisprocedure, you need to take thetransmission out of park (P) which meansyour vehicle can roll freely. To avoidunwanted vehicle movement, always fullyapply the parking brake prior to doing thisprocedure. Use wheels chocks ifappropriate.
1. Do not press the brake pedal. Press theSTART/STOP button.
2. Fully press down on the brake pedal.Keep the brakes applied through step 7.
3. Press the accelerator pedal to the floorand hold through step 7.
4. Press the neutral (N) button on thetransmission selector.
5. Press the neutral (N) button again toenter Stay in Neutral mode.
6. Press and release the push to startbutton, the transmission needs aminimum of 2 seconds to exit park.
7. When neutral (N) is displayed, the brakeand accelerator pedals can be released.
To exit Stay in Neutral mode, select adifferent gear.
A message appears in your informationdisplay screen when your vehicle hasentered Stay in Neutral mode.
Drive (D)
Drive (D) is the normal driving position forthe best fuel economy. The overdrivefunction allows automatic upshifts anddownshifts through gears one through ten.
Adaptive Tow/Haul Mode
WARNING: Do not use tow/haulwhen the road surface is slippery. Failureto follow this instruction could result in theloss of control of your vehicle.
Adaptive tow/haul has two modes, automaticthat is enabled by default and off.
To turn adaptive tow/haul off or on, use theinformation display controls. See GeneralInformation (page 120). The indicator lightilluminates in the instrument cluster.
Key adaptive tow/haul features:
•The system remains in the same mode,even after a key cycle.
•Is only available in normal drive modes(Normal 2H and Normal 4A).
The adaptive tow/haul feature improvestransmission operation when towing a traileror a heavy load. All transmission gear rangesare available when using adaptive tow/haul.
For information on towing. See Towing (page297).
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Transmission

Note:The AdvanceTrac® with RSC® stabilityenhancement system can be switched offby deselecting the feature in the clustermenu. See Using Traction Control (page231). This disables the engine managementfeature, allowing the vehicle to maintain fullpower and enhanced momentum throughthe obstacle.
Note:The AdvanceTrac system can takecontrol of the transfer case clutch anddisable it during driving maneuvers whennecessary.
Your vehicle engages 4X4 modes based onthe currently selected Drive Mode. SeeDrive Mode Control (page 284).
Note:The information display could showmessages during 4WD operation. SeeInformation Messages (page 125).
2H - 4X2
2H turns on when you select NORMAL orCONSERVE. Power is delivered to the rearwheels only. This mode is appropriate fornormal on-road driving on dry pavement andprovides the best fuel economy.
4A - 4X4 Auto
4A turns on when you select EXCITE,NORMAL 4x4 AUTO or SLIPPERY. Itprovides electronically controlled four-wheeldrive with power delivered to all four wheels,as required, for increased traction. 4A iscalibrated in conjunction with Drive Mode.4A in EXCITE is less aggressively tuned andis appropriate for dry road surfaces. 4A inNORMAL 4x4 AUTO is appropriate for allon-road driving conditions, such as dry roadsurfaces, wet pavement, light snow or gravel.4A in SLIPPERY is more aggressively tunedand is appropriate for slippery surfaces, suchas light snow or gravel.
4H - 4X4 High
4H turns on when you select DEEPCONDITIONS. It provides electronicallylocked four-wheel drive power to both thefront and rear wheels for use in off-road orwinter conditions such as deep snow, sandor mud. This mode is not for use on drypavement.
4L - 4X4 Low
4L turns on when you select SLOW CLIMB.It provides electronically locked four-wheeldrive power to both the front and rear wheelsfor use on low traction surfaces, but does sowith additional gearing for increased torquemultiplication. Intended only for off-roadapplications such as deep sand, steepgrades or pulling heavy objects. 4L does notengage when your vehicle is moving above3 mph (5 km/h); this is normal and should beno reason for concern.
Shifting Between 4WD System Modes
Note:Momentarily releasing the acceleratorpedal when a shift in progress messagedisplays improves engagement anddisengagement performance.
Note:Do not perform this operation if therear wheels are slipping.
Note:You may hear some noise as thesystem shifts or engages; this is normal.
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Four-Wheel Drive (If Equipped)

Changing the drive mode automaticallychanges the functionality of the followingsystems:
•Electronically power-assisted steeringsystem adjusts steering effort and feelbased on the mode you select. SeeSteering (page 279).
•Electronic stability control and tractioncontrol maintain your vehicle control inadverse conditions or high performancedriving. See Stability Control (page 232).
•Electronic throttle control enhances thepowertrain response to your inputs.
•Transmission controls optimize with shiftschedules tuned to each mode.
•Driveline settings optimize for eachmode.
Using the System
The system automatically tailors your vehicleconfiguration for each mode you select.
To change the drive mode setting, use thedrive mode selector on the center console.
Note:Mode changes are not available whenthe vehicle ignition is off or when the engineis not running.
•NORMAL – For everyday driving. Thismode is a perfect balance of excitement,comfort and convenience.
•EXCITE – For aggressive on-road driving.This mode increases throttle response,provides a sportier steering feel, alongwith quicker shifting. The suspensionstiffens, with an emphasis on handlingand control. The transmission also holdsgears longer, helping your vehicleaccelerate faster when shifting gears.
•CONSERVE – Enables efficient andresponsible driving. It helps delivermaximum fuel efficiency and increasesdriving range.
•NORMAL 4A – For general on-roaddriving. Use this mode on normal firmsurfaces such as dry or wet pavementand hard packed dirt or gravel roads.Delivers power to all four wheels, asrequired.
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Driving AidsE246604