check engine LINCOLN NAVIGATOR 2023 Owner's Guide

Fail-Safe Cooling
Fail-safe cooling allows you to temporarilydrive your vehicle before any incrementalcomponent damage occurs. The fail-safedistance depends on ambient temperature,vehicle load and terrain.
How Fail-Safe Cooling Works
WARNING: If you continue to driveyour vehicle when the engine isoverheating, the engine could stop withoutwarning. Failure to follow this instructioncould result in the loss of control of yourvehicle.
If the engine begins to overheat,the coolant temperature gaugemoves toward the red zone:
A warning lamp illuminates and amessage may appear in theinformation display.
If the engine reaches a presetover-temperature condition, the engineautomatically switches to alternating cylinderoperation. Each disabled cylinder acts as anair pump and cools the engine.
When this occurs, your vehicle still operates,however:
•Engine power is limited.
•The air conditioning system turns off.
Continued operation increases the enginetemperature, causing the engine tocompletely shut down. Your steering andbraking effort increases in this situation.
When the engine temperature cools, you canre-start the engine. Have your vehiclechecked as soon as possible to minimizeengine damage.
When Fail-Safe Mode Is Activated
WARNING: Fail-safe mode is for useduring emergencies only. Operate yourvehicle in fail-safe mode only as long asnecessary to bring your vehicle to rest ina safe location and seek immediate repairs.When in fail-safe mode, your vehicle willhave limited power, will not be able tomaintain high-speed operation, and maycompletely shut down without warning,potentially losing engine power, powersteering assist, and power brake assist,which may increase the possibility of acrash resulting in serious injury.
WARNING: Do not remove thecoolant reservoir cap when the engine ison or the cooling system is hot. Wait 10minutes for the cooling system to cooldown. Cover the coolant reservoir cap witha thick cloth to prevent the possibility ofscalding and slowly remove the cap.Failure to follow this instruction could resultin personal injury.
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Your vehicle has limited engine power whenin the fail-safe mode, drive your vehicle withcaution. Your vehicle does not maintainhigh-speed operation and the engine couldoperate poorly.
Remember that the engine is capable ofautomatically shutting down to preventengine damage. In this situation:
1.Pull off the road as soon as safelypossible and switch the engine off.
2.If you are a member of a roadsideassistance program, we recommend thatyou contact your roadside assistanceservice provider.
3.If this is not possible, wait for a shortperiod of time for the engine to cool.
4.Check the coolant level. If the coolantlevel is at or below the minimum mark,add prediluted coolant immediately.
5.When the engine temperature cools, youcan re-start the engine. Have your vehiclechecked as soon as possible to minimizeengine damage.
Note:If you continue to drive your vehicle infail-safe mode without repairing it, you willdamage your engine.
Engine Coolant TemperatureManagement (If Equipped)
WARNING: To reduce the risk ofcrash and injury, be prepared that thevehicle speed may reduce and the vehiclemay not be able to accelerate with fullpower until the coolant temperaturereduces.
If you tow a trailer with your vehicle, theengine may temporarily reach a highertemperature during severe operatingconditions, for example ascending a long orsteep grade in high ambient temperatures.
At this time, you may notice the coolanttemperature gauge moves toward the redzone and a message may appear in theinformation display.
You may notice a reduction in vehicle speedcaused by reduced engine power in orderto manage the engine coolant temperature. Your vehicle may enter this mode if certainhigh-temperature and high-load conditionstake place. The amount of speed reductiondepends on vehicle loading, grade andambient temperature. If this occurs, there isno need to stop your vehicle. You cancontinue to drive.
The air conditioning may automatically turnon and off during severe operatingconditions to protect the engine fromoverheating. When the coolant temperaturedecreases to the normal operatingtemperature, the air conditioning turns on.
If the coolant temperature gauge moves fullyinto the red zone, or if the coolanttemperature warning or service engine soonmessages appear in your information display,do the following:
1.Stop your vehicle as soon as it is safe todo so. Fully apply the parking brake, shiftinto park (P) or neutral (N).
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2.Leave the engine running until thecoolant temperature gauge needlereturns to the normal position. If thetemperature does not drop after severalminutes, 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.
ENGINE AIR FILTER
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.
Change the engine air filter element at theproper intervals. See Normal ScheduledMaintenance (page 533).
When changing the engine air filter, use onlythe air filter element listed. See MotorcraftParts (page 468).
Note: Failure to use the correct air filterelement may result in severe enginedamage. Resulting component damage maynot be covered by the vehicle Warranty.
Note: When servicing the air cleaner, do notallow foreign material to enter the airinduction system.
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.
2.Remove the air filter element from the airfilter housing.
3.Install the new air filter element.
4.Replace the air filter housing cover andsecure all the clamps. Be careful not tocrimp the filter element edges betweenthe air filter housing and cover, and makesure that you properly align the tabs onthe edge into the slots.
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12 Volt Battery
•When storing your vehicle for greaterthan 30 days the state of charge shouldbe approximately 50%. Additionally, werecommend disconnecting the 12vbattery which will reduce system loadson the battery.
•Check and recharge as necessary. Keepconnections clean.
Note:It is necessary to reset memoryfeatures if you disconnect the battery cables.
Brakes
Make sure the brakes and parking brakerelease fully.
Note:If you intend on parking your vehiclefor an extended period after cleaning thewheels with a wheel cleaner, drive yourvehicle for a few minutes before doing so toreduce the risk of increased corrosion of thebrake discs, brake pads and linings.
Tires
Maintain recommended air pressure.
Note:If you intend on parking your vehiclefor an extended period after cleaning thewheels with a wheel cleaner, drive yourvehicle for a few minutes before doing so.This reduces the risk of corrosion of thebrake discs, brake pads and linings.
REMOVING YOUR VEHICLE FROM
STORAGE
When your vehicle is ready to come out ofstorage, do the following:
•We recommend that you change theengine oil before you use your vehicleagain.
•Wash your vehicle to remove any dirt orgrease film build-up on window surfaces.
•Check windshield wipers for anydeterioration.
•Check the underhood for any foreignmaterials such as mice or squirrel nests.
•Check the exhaust for any foreignmaterials.
•Check tire pressures and set tire inflationper the Tire Label.
•Check brake pedal operation. Corrodedbrake rotors could cause brake noise.Drive your vehicle and gently apply andrelease the brakes repeatedly over a10-minute drive to reduce the corrosionfrom the brakes.
•Check fluid levels (including coolant, oiland gas) to make sure there are no leaks,and fluids are at recommended levels.
•If you remove the battery, clean thebattery cable ends and check fordamage.
Contact an authorized dealer if you have anyconcerns or issues.
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VEHICLE IDENTIFICATION NUMBER
LOCATING THE VEHICLEIDENTIFICATION NUMBER
The vehicle identification number is on theleft-hand side of the instrument panel.
Note:In the illustration, XXXX isrepresentative of your vehicle identificationnumber.
VEHICLE IDENTIFICATION NUMBEROVERVIEW
The vehicle identification number containsthe following information:
World manufacturer identifier.A
Brake system, gross vehicle weightrating, restraint devices and theirlocations.
B
Make, vehicle line, series, bodytype.C
Engine or motor type.D
Check digit.E
Model year.F
Assembly plant.G
Production sequence number.H
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Transferable Coverage
If you sell your vehicle before your LincolnProtect extended service plan coverageexpires, you can transfer any remainingcoverage to the new owner. This should giveyou and your potential buyer a little morepeace of mind.
Less Cost to Properly Maintain Your Vehicle
The Lincoln Protect extended service planalso offers a Premium Maintenance Plan thatcovers all scheduled maintenance, andselected wear items. The coverage isprepaid, so you never have to worry aboutthe cost of your vehicle’s maintenance.
Covered maintenance includes:
•Windshield wiper blades.
•Spark plugs.
•The clutch disc - if equipped.
•Brake pads and linings.
•Shock absorbers and struts.
•Engine cooling hoses, clamps ando-rings.
•Engine belts.
•Diesel exhaust fluid replenishment - ifequipped.
Interest Free Finance Options
Just a 5% down payment will provide youwith an affordable, no interest, no feepayment program allowing you all thesecurity and benefits Lincoln Protectextended service plan has to offer whilepaying over time. You are pre-approved withno credit check or hassles. To learn more,call our Lincoln Protect extended serviceplan specialists at 800-367-3377.
Complete the information below and mail to:
Lincoln Protect Extended Service PlanP.O. Box 321067Detroit, MI 48232
Lincoln Protect (Canada Only)
You can get more protection for your vehicleby purchasing a Lincoln Protect extendedservice plan. The Lincoln Protect extendedservice plan is the only service contractbacked by Lincoln, Limited. Depending onthe plan you purchase, the Lincoln Protectextended service plan provides benefits suchas:
•Rental reimbursement.
•Coverage for certain maintenance andwear items.
•Protection against repair costs after yourNew Vehicle Limited Warranty Coverageexpires.
•Roadside Assistance benefits.
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If your instrument cluster display resetsprematurely or becomes inoperative, youshould perform the oil change interval at sixmonths or 5,000 mi (8,000 km) from yourlast oil change. Never exceed one year or10,000 mi (16,000 km) between oil changeintervals.
You can drive your vehicle in such a way thatmay lead to higher oil consumption includingextended time at high engine speeds, highloads, engine braking, hard corneringmaneuvers, track and off-road usage. Underthese conditions, oil consumption ofapproximately 1 quart per 500 miles (1 literper 800 km) is possible. Check the engineoil level at every refueling and adjust tomaintain proper levels to avoid enginedamage.
You can also drive your vehicle in such a waythat dilutes and increases the level of oil byfrequent short trips that do not allow theengine to get to operating temperature,extended idling and low speed driving forlong periods of time.
It is important to rely upon your dealershipto properly diagnose and repair your vehicle.
We strongly recommend only using ourgenuine or our authorized re-manufacturedreplacement parts engineered for yourvehicle.
Additives and Chemicals
We do 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. Have discoloredfluids that also show signs of overheating orforeign material contamination checkedimmediately.
Make sure to change the 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 ourapproved flushing chemical.
Owner Checks and Services
Make sure you perform the following basicmaintenance checks and inspections.
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Check Every Month
The air filter restriction gauge.1
The engine oil level.
Function of all interior and the exterior lights.
The tires including the spare for wear and proper pressure.
The windshield washer fluid level.
The fuel and water separator. Drain if necessary or if indicated by the instrument cluster display.1
The holes and slots in the tail pipe to make sure they are functional and clear of debris.1
1 Diesel vehicles only.
Check Every Six Months
The battery connections. Clean if necessary.
The body and door drain holes for obstructions. Clean if necessary.
The cooling system fluid level and the coolant system strength.
The door weatherstrips for wear. Lubricate if necessary.
The hinges, latches and outside locks for proper operation. Lubricate if necessary.
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Check Every Six Months
The parking brake for proper operation.
The seatbelts and seat latches for wear and function.
Safety warning lamps, brake, ABS, airbag and seatbelt for operation.
The washer spray and wiper operation. Clean or replace blades as necessary.
Multi-Point Inspection
It is important to have the systems on yourvehicle regularly checked. This can helpidentify potential issues and prevent majorproblems. We recommend having thefollowing multi-point inspection performedat every scheduled maintenance interval tohelp make sure your vehicle keeps runninggreat.
Multi-Point Inspection
Hazard warning system operationAccessory drive belt or belts
Horn operationBattery performance
Radiator, cooler, heater and air conditioning hosesEngine air filter
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Multi-Point Inspection
Suspension components for leaks or damageExhaust system
Steering and linkageExterior lamps operation
Tires including the spare for wear and proper pressure2Fluid levels1; fill if necessary
Windshield for cracks, chips or pitsFor oil and fluid leaks
Washer spray and wiper operationHalfshaft dust boots
1 Brake, coolant recovery reservoir, automatic transmission and window washer.2If your vehicle has 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
Oil Change Reminder
Your vehicle comes with an oil changereminder that determines when you shouldchange the engine oil based on how you useyour vehicle.
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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