2019 LINCOLN NAVIGATOR service interval

2. Leave the engine running until thecoolant temperature gauge needlereturns to the normal position. Afterseveral minutes, if the temperature doesnot drop, follow the remaining steps.
3. Switch the engine off and wait for it tocool. Check the coolant level.
4. If the coolant level is at or below theminimum mark, add prediluted coolantimmediately.
5. If the coolant level is normal, restart theengine and continue.
AUTOMATIC TRANSMISSION
FLUID CHECK
If required, have an authorized dealer checkand change the transmission fluid at thecorrect service interval. See ScheduledMaintenance (page 547).
The automatic transmission does not havea transmission fluid dipstick.
Refer to your scheduled maintenanceinformation for scheduled intervals for fluidchecks and changes. Your transmission doesnot consume fluid. However, if thetransmission slips, shifts slowly or if younotice a sign of leaking fluid, contact anauthorized dealer.
Do not use supplemental transmission fluidadditives, treatments or cleaning agents. Theuse of these materials may affecttransmission operation and result in damageto internal transmission components.
TRANSFER CASE FLUID CHECK (IF
EQUIPPED)
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6. Repeat Steps 3 through 7 to adjust theother headlamp.
7. Close the hood and turn off the lamps.
Horizontal Aim Adjustment
Horizontal aim is not required for this vehicleand is not adjustable.
CHANGING A BULB
WARNING: Bulbs can become hot.Let the bulb cool down before removingit. Failure to do so could result in personalinjury.
Note: Vehicles with LED headlamps do notcontain serviceable bulbs. See anauthorized dealer if they fail.
LED Lamps
These lamps operate at a high voltage. Contact an authorized dealer.
The following lamps are LED:
•Headlamp Low/high.
•Front parking lamps.
•Front side marker lamps.
•Daytime running lamps.
•Front direction indicators.
•Rear direction indicators.
•Brake and rear lamps.
•Reversing lamps.
•License plate lamps.
CHANGING THE ENGINE AIR
FILTER
WARNING: To reduce the risk ofvehicle damage and personal burn injuries,do not start your engine with the aircleaner removed and do not remove itwhile the engine is running.
Note: Failure to use the correct air filterelement may result in severe enginedamage. Resulting component damage maynot be covered by the vehicle Warranty.
When changing the air filter element, useonly the air filter element listed. SeeMotorcraft Parts (page 419).
Change the air filter element at the correctinterval. See Scheduled Maintenance (page547).
1. Release the two clamps that secure thecover to the air filter housing. Push theair filter cover toward the front of thevehicle and up slightly to release it.
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GENERAL MAINTENANCE
INFORMATION
Why Maintain Your Vehicle?
Carefully following the maintenanceschedule helps protect against major repairexpenses resulting from neglect orinadequate maintenance and may help toincrease the value of your vehicle when yousell or trade it. Keep all receipts forcompleted maintenance with your vehicle.
We have established regular maintenanceintervals for your vehicle based uponrigorous testing. It is important that you haveyour vehicle serviced at the proper times.These intervals serve two purposes; one isto maintain the reliability of your vehicle andthe second is to keep your cost of owningyour vehicle down.
It is your responsibility to have all scheduledmaintenance performed and to make surethat the materials used meet thespecifications identified in this owner'smanual. See Capacities and Specifications(page 418).
Failure to perform scheduled maintenanceinvalidates warranty coverage on partsaffected by the lack of maintenance.
Why Maintain Your Vehicle at YourDealership?
Factory-Trained Technicians
Service technicians participate in extensivefactory-sponsored certification training tohelp them become experts on the operationof your vehicle. Ask your dealership aboutthe training and certification their technicianshave received.
Genuine Lincoln and Motorcraft®Replacement Parts
Dealerships stock Lincoln, Motorcraft andLincoln authorized branded re-manufacturedreplacement parts. These parts meet orexceed our specifications. Parts installed atyour dealership carry a nationwide 24-monthor unlimited mile (kilometer) parts and laborlimited warranty.
If you do not use Lincoln authorized partsthey may not meet our specifications anddepending on the part, it could affectemissions compliance.
Convenience
Many dealerships have extended eveningand Saturday hours to make your servicevisit more convenient and they offer one stopshopping. They can perform any servicesthat are required on your vehicle, fromgeneral maintenance to collision repairs.
Note:Not all dealers have extended hoursor body shops. Please contact your dealerfor details.
Protecting Your Investment
Maintenance is an investment that paysdividends in the form of improved reliability,durability and resale value. To maintain theproper performance of your vehicle and itsemission control systems, make sure youhave scheduled maintenance performed atthe designated intervals.
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Scheduled Maintenance

Your vehicle is equipped with the IntelligentOil-Life Monitor system, which displays amessage in the information display at theproper oil change interval. This interval maybe up to one year or 10,000 mi (16,000 km).
When the oil change message appears inthe information display, it is time for an oilchange. Make sure you perform the oilchange within two weeks or 500 mi (800 km)of the message appearing. Make sure youreset the Intelligent Oil-Life Monitor aftereach oil change. See Oil Change IndicatorReset (page 363).
If your information display resets prematurelyor becomes inoperative, you should performthe oil change interval at six months or5,000 mi (8,000 km) from your last oilchange. Never exceed one year or 10,000 mi(16,000 km) between oil change intervals.
Your vehicle is very sophisticated and builtwith multiple, complex, performance systems.Every manufacturer develops these systemsusing different specifications andperformance features. That is why it isimportant to rely upon your dealership toproperly diagnose and repair your vehicle.
The Lincoln Motor Company hasrecommended maintenance intervals forvarious parts and component systems basedupon engineering testing. The Lincoln MotorCompany relies upon this testing todetermine the most appropriate mileage forreplacement of oils and fluids to protect yourvehicle at the lowest overall cost to you andrecommends against maintenance schedulesthat deviate from the scheduled maintenanceinformation.
We strongly recommend the use of onlygenuine Lincoln, Motorcraft or Lincolnauthorized re-manufactured replacementparts engineered for your vehicle.
Additives and Chemicals
This owner's manual and the LincolnWorkshop Manual list the recommendedadditives and chemicals for your vehicle. Wedo not recommend using chemicals oradditives not approved by us as part of yourvehicle’s normal maintenance. Please consultyour warranty information.
Oils, Fluids and Flushing
In many cases, fluid discoloration is a normaloperating characteristic and, by itself, doesnot necessarily indicate a concern or that thefluid needs to be changed. However, aqualified expert, such as the factory-trainedtechnicians at your dealership, shouldinspect discolored fluids that also show signsof overheating or foreign materialcontamination immediately.
Make sure to change your vehicle’s oils andfluids at the specified intervals or inconjunction with a repair. Flushing is a viableway to change fluid for many vehiclesub-systems during scheduled maintenance.It is critical that systems are flushed only withnew fluid that is the same as that requiredto fill and operate the system or using aLincoln approved flushing chemical.
Owner Checks and Services
Make sure you perform the following basicmaintenance checks and inspections everymonth or at six-month intervals.
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Scheduled Maintenance

Multi-Point Inspection
Steering and linkageExterior lamps operation
Tires (including spare) for wear and proper pressure2Fluid levels1; fill if necessary
Windshield for cracks, chips or pitsFor oil and fluid leaks
Washer spray and wiper operationHalf-shaft dust boots
1 Brake, coolant recovery reservoir, automatic transmission and window washer2If your vehicle is equipped with a temporary mobility kit, check the tire sealant expiration Use By date on the canister. Replace as needed.
Be sure to ask your dealership serviceadvisor or technician about the multi-pointvehicle inspection. It is a comprehensive wayto perform a thorough inspection of yourvehicle. Your checklist gives you immediatefeedback on the overall condition of yourvehicle.
NORMAL SCHEDULED
MAINTENANCE
Intelligent Oil-Life Monitor
Your vehicle is equipped with an IntelligentOil-Life Monitor that determines when youshould change the engine oil based on howyour vehicle is used. By using severalimportant factors in its calculations, themonitor helps reduce the cost of owning yourvehicle and reduces environmental waste atthe same time.
This means you do not have to remember tochange the oil on a mileage-based schedule.Your vehicle lets you know when an oilchange is due by displaying a message inthe information display.
The following table provides examples ofvehicle use and its impact on oil changeintervals. It is a guideline only. Actual oilchange intervals depend on several factorsand generally decrease with severity of use.
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Scheduled Maintenance

Normal Maintenance Intervals
At Every Oil Change Interval as Indicated by the Information Display 1
Change engine oil and filter. 2
Rotate tires, inspect tire wear and measure tread depth.
Perform a multi-point inspection - recommended.
Inspect the automatic transmission fluid level - vehicles with dipstick. Consult your dealer for requirements.
Inspect the brake pads, rotors, hoses and parking brake.
Inspect the engine cooling system strength and hoses.
Inspect the exhaust system and heat shields.
Inspect front axle and U-joints.
Inspect the half-shaft boots.
Inspect the steering linkage, ball joints, suspension, tire-rod ends, driveshaft and U-joints.
Inspect the wheels and related components for abnormal noise, wear, looseness or drag.
1 Do not exceed one year or 10,000 mi (16,000 km) between service intervals.2 Reset the Intelligent Oil-Life Monitor after engine oil and filter changes.
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Scheduled Maintenance

Exceptions
There are several exceptions to the NormalSchedule.
Axle and Transfer Case Maintenance
Axle(s) and transfer case (Four-wheel drivevehicles) fluid changes or level checks arenot required unless a leak is suspected orthe assembly has been submerged in water.Contact an authorized dealer for service.
California Fuel Filter Replacement
If you register your vehicle in California, theCalifornia Air Resources Board hasdetermined that the failure to perform thismaintenance item does not nullify theemission warranty or limit recall liabilitybefore the completion of your vehicle'suseful life. The Lincoln Motor Company,however, urges you to have allrecommended maintenance servicesperformed at the specified intervals and torecord all vehicle service.
Hot Climate Oil Change Intervals
Vehicles operating in the Middle East, NorthAfrica, Sub-Saharan Africa or locations withsimilar climates using an American PetroleumInstitute (API) Certified for Gasoline Engines(Certification mark) oil of SM or SN quality,the normal oil change interval is 3,000 mi(4,800 km).
If the available API SM or SN oils are notavailable, then the oil change interval is1,800 mi (2,900 km).
Engine Air Filter Replacement
The life of the engine air filter is dependenton exposure to dusty and dirty conditions.Vehicles operated in these conditionsrequire frequent inspection and replacementof the engine air filter.
SCHEDULED MAINTENANCE
RECORD
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Scheduled Maintenance