2023 LINCOLN NAVIGATOR maintenance

WHAT IS THE CATALYTIC
CONVERTER
The catalytic converter is part of yourvehicle's emissions system and filters harmfulpollutants from the exhaust gas.
CATALYTIC CONVERTER
PRECAUTIONS
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.
To avoid damaging the catalytic converter:
•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 391).
•Use the correct fuel. See Fuel andRefueling (page 211).
•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:Do not make any unauthorizedchanges to your vehicle or engine. By law,vehicle owners and anyone whomanufactures, repairs, or services a fleet ofvehicles are not permitted to intentionallyremove an emission control device orprevent it from working.
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ELECTRIC PARKING BRAKE – INFORMATION MESSAGES
ActionMessage
The electric parking brake is set and a manual release is attempted without the brakepedal being pressed.To Release: Press Brake and Switch
The electric parking brake is set and an automatic release is attempted but cannot beperformed. 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 the electric parking brake before continuing to drive.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 to allow brakeservice. Have the system checked as soon as possible.Brake maintenance mode
The electric parking brake system has detected a condition that requires service. Somefunctionality may still be available. Have the system checked as soon as possible.Park Brake Limited Function Service Required
The electric parking brake system has detected a condition that requires service. Havethe system checked as soon as possible.Park Brake Malfunction Service Now
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CONNECTING A TRAILER
PRECAUTIONS
Do not tow a trailer until you drive yourvehicle at least 1,000 mi (1,600 km).
Consult your local motor vehicle laws fortowing a trailer.
See the instructions included with towingaccessories for the proper installation andadjustment specifications.
Service your vehicle more frequently if youtow a trailer. See Normal ScheduledMaintenance (page 533).
If you use a rental trailer, follow theinstructions the rental agency gives you.
When attaching the trailer wiring connectorto your vehicle, only use a proper fittingconnector that works with the vehicle andtrailer functions.
Account for the trailer coupler weight as partof your vehicle load when calculating thetotal vehicle weight.
Do not exceed the load limits. See NormalScheduled Maintenance (page 533).
HITCHES
INSTALLING A HITCH
WARNING: Do not cut, drill, weld ormodify the trailer hitch. Modifying the trailerhitch could reduce the hitch rating.
Do not use a hitch that either clamps ontothe bumper or attaches to the axle. You mustdistribute the load in your trailer so that10-15% of the total weight of the trailer is onthe tongue. Do not exceed the tongue loadrating indicated on the hitch receiver.
Trailer Hitch Cover
Your vehicle has a removable trailer hitchcover. To remove the trailer hitch cover:
1.Grab the trailer hitch cover at the bottomand pull towards the rear of the vehicleuntil the bottom of the trailer hitch coverunsnaps from the bumper.
2.Grab the trailer hitch cover at the edgeand rotate until the top of the trailer hitchcover unsnaps from the bumper, thenremove the trailer hitch cover.
To install the trailer hitch cover:
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COLD WEATHER PRECAUTIONS
The functional operation of somecomponents and systems can be affected attemperatures below approximately -13°F(-25°C).
DRIVING ON SNOW AND ICE
WARNING: If you are driving inslippery conditions that require tire chainsor cables, then it is critical that you drivecautiously. Keep speeds down, allow forlonger stopping distances and avoidaggressive steering to reduce the chancesof a loss of vehicle control which can leadto serious injury or death. If the rear endof your vehicle slides while cornering, steerin the direction of the slide until you regaincontrol of your vehicle.
On ice and snow, you should drive moreslowly than usual. Your vehicle has a fourwheel anti-lock brake system, do not pumpthe brake pedal. See Anti-Lock BrakingSystem Limitations (page 232).
BREAKING-IN
Your vehicle requires a break-in period. Forthe first 1,000 mi (1,600 km), avoid driving athigh speeds, heavy braking, aggressiveshifting or using your vehicle to tow. Duringthis time, your vehicle may exhibit someunusual driving characteristics.
DRIVING ECONOMICALLY
The following helps to improve fuelconsumption:
•Drive smoothly, accelerate gently andanticipate the road ahead to avoid heavybraking.
•Regularly check your tire pressures andmake sure that they are inflated to thecorrect pressure.
•Follow the recommended maintenanceschedule and carry out therecommended checks.
•Plan your journey and check the trafficbefore you set off. It is more efficient tocombine errands into a single tripwhenever possible.
•Avoid idling the engine in cold weatheror for extended periods. Start the engineonly when you are ready to set off.
•Do not carry unnecessary weight in yourvehicle as extra weight wastes fuel.
•Do not add unnecessary accessories tothe exterior of your vehicle, for examplerunning boards. If you use a roof rack,remember to fold it down or remove itwhen not in use.
•Do not shift into neutral when you arebraking or when your vehicle is slowingdown.
•Shut all windows when driving at highspeeds.
•Switch off all electric systems when notin use, for example air conditioning. Makesure that you unplug any accessoriesfrom the auxiliary power points when notin use.
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MAINTENANCE PRECAUTIONS
Service your vehicle regularly to helpmaintain its roadworthiness and resale value.There is a large network of authorizeddealers that are there to help you with theirprofessional servicing expertise. We believethat their specially trained technicians arebest qualified to service your vehicle properlyand expertly. They are supported by a widerange of highly specialized tools developedspecifically for servicing your vehicle.
If your vehicle requires professional service,an authorized dealer can provide thenecessary parts and service. Check yourwarranty information to find out which partsand services are covered.
Use only recommended fuels, lubricants,fluids and service parts conforming tospecifications. See Capacities andSpecifications (page 467).
•Do not work on a hot engine.
•Make sure that nothing gets caught inmoving parts.
•Do not work on a vehicle with the enginerunning in an enclosed space, unless youare sure you have enough ventilation.
•Keep all open flames and other burningmaterial, such as cigarettes, away fromthe battery and all fuel related parts.
•Set the parking brake, shift thetransmission to park (P) and block thewheels.
OPENING AND CLOSING THE
HOOD
WARNING: Make sure that you fullylatch the hood before driving. Failure tofollow this instruction could result inpersonal injury or death.
1.Pull the hood release handle under theleft-hand side of the instrument panel.
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2.Pull the secondary release lever underthe front of the hood near the center ofyour vehicle.
3.Raise the hood until the lift cylinders holdit open.4.To close, lower the hood and make surethat it fully latches.
UNDER HOOD OVERVIEW
Windshield washer fluid reservoir. See Adding Washer Fluid (page 118).A
Engine compartment fuse box. See Accessing the Under Hood Fuse Box (page 401).B
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Battery. See Changing the 12V Battery (page 424).C
Engine oil filler cap. See Adding Engine Oil (page 417).D
Engine oil dipstick. See Engine Oil Dipstick Overview (page 417).E
Brake fluid reservoir. See Checking the Brake Fluid (page 232).F
Air filter. See Changing the Engine Air Filter (page 423).G
Engine coolant reservoir. See Checking the Coolant (page 418).H
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ENGINE OIL
ENGINE OIL DIPSTICK OVERVIEW
Minimum.A
Nominal.B
Maximum.C
CHECKING THE ENGINE OIL LEVEL
1.Make sure that your vehicle is on levelground.
2.Check the oil level before starting theengine, or switch the engine off afterwarm up and wait 15 minutes for the oilto drain into the oil pan.
Note:Checking the oil level too soon couldresult in an inaccurate reading.
3.Remove the dipstick and wipe it with aclean, lint-free cloth.
4.Reinstall the dipstick and make sure it isfully seated.
5.Remove the dipstick again to check theoil level.
Note: If the oil level is between themaximum and minimum marks, the oil levelis acceptable. Do not add oil.
6.If the oil level is at the minimum mark,immediately add oil.
7.Reinstall the dipstick. Make sure it is fullyseated.
Note:The oil consumption of new enginesreaches its normal level after approximately3,000 mi (5,000 km).
Note:Increases in oil level can occur fromfrequent short trips that do not allow theengine to get to operating temperature, aswell as frequent idling or low speed drivingfor long periods of time.
Note:If oil levels are continuously notedabove the maximum mark, schedule a visitto your authorized dealer.
ADDING ENGINE OIL
WARNING: Do not remove the fillercap when the engine is running.
WARNING: Do not add engine oilwhen the engine is hot. Failure to followthis instruction could result in personalinjury.
Do not use supplemental engine oil additivesbecause they are unnecessary and couldlead to engine damage that the vehiclewarranty may not cover.
1.Clean the area surrounding the engineoil filler cap before you remove it.
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