2019 LINCOLN NAVIGATOR warning

Coolant Change
At specific mileage intervals, as listed in thescheduled maintenance information, thecoolant should be changed. Add predilutedcoolant approved to the correct specification.See Capacities and Specifications (page418).
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
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 coolingsystem is hot. Wait 10 minutes for thecooling system to cool down. Cover thecoolant reservoir cap with a thick cloth toprevent the possibility of scalding andslowly remove the cap. Failure to followthis instruction could result in personalinjury.
367
Navigator (TB9) Canada/United States of America, enUSA, Edition date: 201808, First-Printing
Maintenance

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 mayoperate 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 a short periodfor 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:Driving your vehicle without repairincreases the chance of engine damage.
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).
368
Navigator (TB9) Canada/United States of America, enUSA, Edition date: 201808, First-Printing
Maintenance

1. Clean the area around the filler plug.
2. Remove the filler plug.
3. Inspect the fluid level. The fluid levelshould be within 0.20 in (5 mm) from thebottom of the hole.
4. Add fluid through the filler opening. Fillto the bottom of the opening.
Use only fluid that meets our specifications.See Capacities and Specifications (page418).
BRAKE FLUID CHECK
WARNING: Do not use any fluid otherthan the recommended brake fluid as thiswill reduce brake efficiency. Use ofincorrect fluid could result in the loss ofvehicle control, serious personal injury ordeath.
WARNING: Only use brake fluid froma sealed container. Contamination with dirt,water, petroleum products or othermaterials may result in brake systemdamage or failure. Failure to adhere to thiswarning could result in the loss of vehiclecontrol, serious personal injury or death.
WARNING: Do not allow the fluid totouch your skin or eyes. If this happens,rinse the affected areas immediately withplenty of water and contact your physician.
WARNING: A fluid level between theMAX and MIN lines is within the normaloperating range and there is no need toadd fluid. A fluid level not in the normaloperating range could compromise theperformance of the system. Have yourvehicle checked immediately.
To avoid fluid contamination, the reservoircap must remain in place and fully tight,unless you are adding fluid.
Only use fluid that meets Ford specifications.See Capacities and Specifications (page418).
370
Navigator (TB9) Canada/United States of America, enUSA, Edition date: 201808, First-Printing
MaintenanceE170684

WASHER FLUID CHECK
WARNING: If you operate yourvehicle in temperatures below 41.0°F (5°C),use washer fluid with antifreeze protection.Failure to use washer fluid with antifreezeprotection in cold weather could result inimpaired windshield vision and increasethe risk of injury or accident.
Note:The front and rear washer systemsare supplied from the same reservoir.
Add fluid to fill the reservoir if the level is low.Only use a washer fluid that meets ourspecifications. See Capacities andSpecifications (page 418).
State or local regulations on volatile organiccompounds may restrict the use of methanol,a common windshield washer antifreezeadditive. Washer fluids containingnon-methanol antifreeze agents should beused only if they provide cold weatherprotection without damaging the vehicle’spaint finish, wiper blades or washer system.
FUEL FILTER
Your vehicle is equipped with a lifetime fuelfilter that is integrated with the fuel tank.Regular maintenance or replacement is notneeded.
CHANGING THE 12V BATTERY
WARNING: Batteries normallyproduce explosive gases which can causepersonal injury. Therefore, do not allowflames, sparks or lighted substances tocome near the battery. When working nearthe battery, always shield your face andprotect your eyes. Always provide correctventilation.
WARNING: When lifting aplastic-cased battery, excessive pressureon the end walls could cause acid to flowthrough the vent caps, resulting in personalinjury and damage to the vehicle or battery.Lift the battery with a battery carrier or withyour hands on opposite corners.
WARNING: Keep batteries out ofreach of children. Batteries contain sulfuricacid. Avoid contact with skin, eyes orclothing. Shield your eyes when workingnear the battery to protect against possiblesplashing of acid solution. In case of acidcontact with skin or eyes, flush immediatelywith water for a minimum of 15 minutes andget prompt medical attention. If acid isswallowed, call a physician immediately.
WARNING: Battery posts, terminalsand related accessories contain lead andlead compounds, chemicals known to theState of California to cause cancer andreproductive harm. Wash your hands afterhandling.
371
Navigator (TB9) Canada/United States of America, enUSA, Edition date: 201808, First-Printing
Maintenance

WARNING: This vehicle may havemore than one battery. Removing thebattery cables from only one battery doesnot disconnect your vehicle electricalsystem. Make sure you disconnect thebattery cables from all batteries whendisconnecting power. Failure to do so maycause serious personal injury or propertydamage.
Your vehicle is fitted with a Motorcraftmaintenance-free battery which normallydoes not require additional water.
When a battery replacement is required, youmust use a recommended replacementbattery that matches the electricalrequirements of the vehicle.
Note:After cleaning or replacing the battery,make sure you reinstall the battery cover orshield.
Note:If you add electrical accessories orcomponents to the vehicle, it may adverselyaffect the low voltage battery performanceand durability. This may also affect theperformance of other electrical systems inthe vehicle.
For longer, trouble-free operation, keep thetop of the battery clean and dry.
If you see any corrosion on the battery orterminals, remove the cables from theterminals and clean with a wire brush. Youcan neutralize the acid with a solution ofbaking soda and water.
Because your vehicle’s engine iselectronically controlled by a computer, somecontrol conditions are maintained by powerfrom the battery. When the battery isdisconnected or a new battery is installed,the engine must relearn its idle and fuel trimstrategy for optimum driveability andperformance. Flexible fuel vehicles (FFV)must also relearn the ethanol content of thefuel for optimum driveability andperformance.
To restore the settings, do the following:
1. Apply the parking brake.
2. Shift into park (P) or neutral (N).
3. Switch off all accessories.
4. Press the brake pedal and start yourvehicle.
5. Run the engine until it reaches normaloperating temperature. While the engineis warming up, complete the following:Reset the clock. Reset the powerwindows bounce-back feature. SeeWindows and Mirrors (page 105). Resetthe radio station presets. See AudioSystem (page 432).
6. Allow the engine to idle for at least oneminute.
7.Drive the vehicle at least 10 mi (16 km) tocompletely relearn the idle trim and fueltrim strategy.
Note:If you do not allow the engine torelearn the idle and fuel trim strategy, theidle quality of your vehicle may be adverselyaffected until the engine computereventually relearns the idle trim and fuel trimstrategy.
372
Navigator (TB9) Canada/United States of America, enUSA, Edition date: 201808, First-Printing
Maintenance

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.
376
Navigator (TB9) Canada/United States of America, enUSA, Edition date: 201808, First-Printing
MaintenanceE248801

Note: Do not use razor blades or othersharp objects to clean or remove decals fromthe inside of the heated rear window. Thevehicle warranty does not cover damagecaused to the heated rear window grid lines.
CLEANING THE INTERIOR
WARNING: Do not use cleaningsolvents, bleach or dye on the vehicle'sseatbelts, as these actions may weakenthe belt webbing.
WARNING: On vehicles equippedwith seat-mounted airbags, do not usechemical solvents or strong detergents.Such products could contaminate the sideairbag system and affect performance ofthe side airbag in a crash.
Note:Follow the same procedure forcleaning leather seats when cleaning leatherinterior. See Cleaning Leather Seats (page384).
Note:Do not use household cleaningproducts or glass cleaners, which can stainand discolor the fabric and affect the flameretardant abilities of the seat materials.
For fabric, carpets, cloth seats, safety beltsand seats equipped with side airbags:
•Remove dust and loose dirt with avacuum cleaner.
•Remove light stains and soil withMotorcraft® Professional Strength Carpet& Upholstery Cleaner.
For grease or tar stains:
•Spot clean the area with Motorcraft® Spotand Stain Remover. In Canada, useMotorcraft® Multi-Purpose Cleaner.
•If a ring forms on the fabric after spotcleaning, clean the entire areaimmediately, but do not oversaturate orthe ring will set.
Cleaning Black Label or PresidentialInterior (If Equipped)
Note:Alcantara microfiber cloth fabric ismade of polyester microfiber withmicro-porous polyurethane. Usingcommercially available fabric cleaners cancause permanent damage.
Note:Do not use commercially availableleather and vinyl cleaning products onAlcantara microfiber cloth fabric.
Note:Lincoln Black Label or Presidentialvehicles may have Alcantara microfiber clothfabric on the seats, headliner, floor mats anddoor panels.
Depending on the type of stain, use water,lemon juice or pure ethyl alcohol whencleaning. For cleaning Alcantara microfibercloth, refer to the following chart:
382
Navigator (TB9) Canada/United States of America, enUSA, Edition date: 201808, First-Printing
Vehicle Care

CLEANING THE INSTRUMENT
PANEL AND INSTRUMENT
CLUSTER LENS
WARNING: Do not use chemicalsolvents or strong detergents whencleaning the steering wheel or instrumentpanel to avoid contamination of the airbagsystem.
Note:Follow the same procedure ascleaning leather seats for cleaning leatherinstrument panels and leather interior trimsurfaces. See Cleaning Leather Seats (page384).
Clean the instrument panel and cluster lenswith a clean, damp and soft cloth, then usea clean, dry and soft cloth to dry these areas.
•Avoid cleaners or polishes that increasethe gloss of the upper portion of theinstrument panel. The dull finish in thisarea helps protect you from undesirablewindshield reflection.
•Do not use any household cleaningproducts or glass cleaners as these maydamage the finish of the instrumentpanel, interior trim and cluster lens.
•Wash or wipe your hands clean if youhave been in contact with certainproducts such as insect repellent andsuntan lotion to avoid possible damageto the interior painted surfaces.
•Do not allow air fresheners and handsanitizers to spill onto interior surfaces.If a spill occurs, wipe off immediately.Your warranty may not cover thesedamages.
If a staining liquid like coffee or juice hasbeen spilled on the instrument panel or oninterior trim surfaces:
1.Wipe up spilled liquid using a clean, softcloth as quickly as possible.
2. Use Motorcraft Premium Leather andVinyl Cleaner or a commercially availableleather cleaning product for automotiveinteriors. Test any cleaner or stainremover on an inconspicuous area.
3. Alternatively, wipe the surface with aclean, soft cloth and a mild soap andwater solution. Dry the area with a clean,soft cloth.
4.If necessary, apply more soap and watersolution or cleaning product to a clean,soft cloth and press it onto the soiledarea. Allow this to set at roomtemperature for 30 minutes.
5. Remove the soaked cloth, then with aclean, damp cloth, use a rubbing motionfor 60 seconds on the soiled area.
6. Dry the area with a clean, soft cloth.
CLEANING LEATHER SEATS
Note:Follow the same procedure ascleaning leather seats for cleaning leatherinstrument panels and leather interior trimsurfaces.
384
Navigator (TB9) Canada/United States of America, enUSA, Edition date: 201808, First-Printing
Vehicle Care