2023 LINCOLN NAVIGATOR check engine

Accessing the Passive Key BackupPosition......................................................205
Starting and Stopping the Engine –Troubleshooting......................................206
Auto-Start-Stop
What Is Auto-Start-Stop.............................208
Auto-Start-Stop Precautions....................208
Switching Auto-Start-Stop On and Off......................................................................208
Stopping the Engine..................................208
Restarting the Engine................................208
Auto-Start-Stop Indicators........................208
Auto-Start-Stop – Troubleshooting........209
Fuel and Refueling
Fuel and Refueling Precautions................211
Fuel Quality...................................................212
Locating the Fuel Filler Funnel.................212
Running Out of Fuel....................................213
Refueling........................................................214
Fuel Tank Capacity......................................216
Fuel and Refueling – Troubleshooting.......................................................................217
Catalytic Converter
What Is the Catalytic Converter...............218
Catalytic Converter Precautions..............218
Catalytic Converter – Troubleshooting.......................................................................219
Automatic Transmission
Automatic Transmission Precautions.....220
Automatic Transmission Positions..........220
Shifting Your Vehicle Into Gear................221
Automatic Transmission Position Indicators.......................................................................221
Manually Shifting Gears.............................221
Temporary Neutral Mode..........................222
Automatic Return to Park (P)....................223
Automatic Transmission Audible Warnings......................................................................223
Four-Wheel Drive
How Does Four-Wheel Drive Work........224
Four-Wheel Drive Precautions.................224
Four-Wheel Drive Limitations..................225
Selecting a Four-Wheel Drive Mode......226
Four-Wheel Drive Modes..........................226
Four-Wheel Drive Indicators.....................227
Four-Wheel Drive – Troubleshooting......227
Electronic Limited-Slip Differential
What Is the Electronic Limited-SlipDifferential................................................230
Electronic Limited-Slip Differential –Troubleshooting.......................................231
Brakes
Brake Precautions.......................................232
Anti-Lock Braking System.........................232
Brake Over Accelerator.............................232
Locating the Brake Fluid Reservoir........232
Checking the Brake Fluid.........................232
Brake Fluid Specification..........................233
Brakes – Troubleshooting.........................233
Electric Parking Brake
What Is the Electric Parking Brake.........235
Applying the Electric Parking Brake.......235
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2023 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202207, DOMTable of Contents

Fuses
Fuse Precautions.........................................401
Under Hood Fuse Box................................401
Body Control Module Fuse Box..............408
Identifying Fuse Types................................413
Fuses – Troubleshooting...........................413
Maintenance
Maintenance Precautions..........................414
Opening and Closing the Hood...............414
Under Hood Overview................................415
Engine Oil.......................................................417
Checking the Coolant.................................418
Engine Air Filter...........................................423
Changing the Fuel Filter............................424
Changing the 12V Battery.........................424
Adjusting the Headlamps..........................427
Exterior Bulbs...............................................428
Interior Bulbs................................................428
Drive Belt Routing.......................................428
Vehicle Care
Cleaning Products......................................429
Cleaning the Exterior.................................430
Cleaning the Interior...................................432
Repairing Minor Paint Damage................434
Waxing Your Vehicle...................................434
Storing Your Vehicle
Preparing Your Vehicle for Storage........435
Removing Your Vehicle From Storage......................................................................436
Wheel and Tire Information
Locating the Tire label...............................437
Department of Transportation Uniform TireQuality Grades.........................................437
Information on the Tire Sidewall.............438
Glossary of Tire Terminology...................443
Tire Replacement Requirements.............444
Using Snow Chains.....................................446
Tire Care
Checking the Tire Pressures....................449
Inflating the Tires.........................................449
Inspecting the Tire for Wear.....................449
Inspecting the Tire for Damage..............450
Inspecting the Wheel Valve Stems..........451
Tire Rotation..................................................451
Tire Pressure Monitoring System
What Is the Tire Pressure MonitoringSystem.......................................................453
Tire Pressure Monitoring System Overview......................................................................453
Tire Pressure Monitoring SystemPrecautions...............................................454
Tire Pressure Monitoring SystemLimitations................................................455
Viewing the Tire Pressures......................455
Tire Pressure Monitoring System –Troubleshooting......................................455
Changing a Road Wheel
Changing a Flat Tire...................................459
Wheel Nuts...................................................465
Capacities and Specifications
Engine Specifications.................................467
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2023 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202207, DOMTable of Contents

SYMBOLS USED ON YOUR
VEHICLE
These are some of the symbols you may seeon your vehicle.
Airbag
Air conditioning system
Air conditioning system lubricanttype
Anti-lock braking system
Avoid smoking, flames or sparks
Battery
Battery acid
Blower motor
Brake fluid - non petroleum based
Brake system
Brake system
Cabin air filter
Check fuel cap
Child safety door lock or unlock
Child seat lower anchor
Child seat tether anchor
Cruise control
Do not open when hot
Electric Parking brake
Engine air filter
Engine coolant
Engine coolant temperature
Engine oil
Explosive gas
Fan warning
Fasten seatbelt
Flammable
Front fog lamps
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2023 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202207, DOMSymbols GlossaryE67017 E162384 E231157 E67020 E139220 E67021 E139227 E139209 E67024 E270480 E139223 E139211 E141128 E332905 E139219 E139212 E103308 E67022 E139221 E139228 E71880 E231160

Read Steps 1-4 before proceeding with theprogramming procedure.
Make sure that:
•You set the parking brake.
•The transmission is in park (P).
•The ignition is off.
•You close all vehicle doors.
•You unfasten the driver and frontpassenger seatbelts.
1.Switch the ignition on. Do not start theengine.
2.Immediately start the deactivation orreactivation procedure in Step 3. Onceyou start Step 3, you must complete theprocedure within 30 seconds.
3.For the seating position you are switchingoff or on, fasten then unfasten theseatbelt four times at a moderate speed,ending in the unfastened state. Theseatbelt warning light flashes forconfirmation.
This switches the feature off for that seatingposition if it is currently on.
This switches the feature on for that seatingposition if it is currently off.
CHECKING THE SEATBELTS
Check the seatbelts and child restraintsperiodically to make sure they work properlyand are not damaged. Make sure there areno nicks, tears or cuts. Replace if necessary.
Check the following seatbelt assemblies aftera crash.
•Retractors.
•Buckles.
•Front seatbelt buckle assemblies.
•Shoulder belt height adjusters.
•Shoulder belt guide on seat backrest.
•Child restraint LATCH and tether anchors.
•Attaching hardware.
Read the child restraint manufacturer'sinstructions for additional inspection andmaintenance information specific to the childrestraint.
We recommend that all seatbelt assembliesin use in vehicles involved in a crash bereplaced. However, if the crash was minorand an authorized dealer finds that the beltsdo not show damage and continue tooperate properly, they do not need to bereplaced. Seatbelt assemblies not in useduring a crash should also be checked andreplaced if either damage or improperoperation is noted.
Properly care for seatbelts. See CleaningSeatbelts (page 434).
SEATBELT EXTENSIONS
WARNING: Persons who fit into thevehicle's seatbelt should not use anextension. Unnecessary use could resultin serious personal injury in the event of acrash.
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2023 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202207, DOMSeatbelts

WHAT IS DISTANCE TO EMPTY
Indicates the approximate distance yourvehicle can travel on the fuel remaining inthe tank. Changes in driving pattern cancause the value to not only decrease but alsoincrease or stay constant for periods of time.
ENGINE COOLANT TEMPERATURE
GAUGE
Indicates the engine coolant temperature.
ENGINE OIL PRESSURE GAUGE
Indicates the engine oil pressure.
Note:This is a configurable gauge.
TRANSMISSION FLUID
TEMPERATURE GAUGE
Indicates the transmission fluid temperature.
Special operating conditions can causehigher than normal operating temperatures.See Special Operating ConditionsScheduled Maintenance (page 537).
Note:This is a configurable gauge.
WHAT ARE THE INSTRUMENT
CLUSTER WARNING LAMPS
Warning lamps alert you to a vehiclecondition that could become serious. Somelamps illuminate when you start your vehicleto make sure they work. If any lamps remainon after starting your vehicle, refer to therespective system warning lamp for furtherinformation.
INSTRUMENT CLUSTER WARNING
LAMPS
Anti-Lock Brake System
If it illuminates when you aredriving, this indicates that thesystem requires service. Yourvehicle continues to have normal brakingwithout the anti-lock brake system function. Have your vehicle checked as soon aspossible.
Battery
It illuminates when you switch theignition on.
If it illuminates when the engine isrunning, this indicates your vehicle requiresservice. Have your vehicle checked as soonas possible.
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2023 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202207, DOMInstrument ClusterE67020 E67021

Brake System
It illuminates when you apply theparking brake and the ignition ison. If it illuminates when yourvehicle is moving, make sure theparking brake is released. If theparking brake is released, this indicates lowbrake fluid level or the brake system requiresservice. Have your vehicle checked as soonas possible.
Note:Indicators may vary depending onregion.
Door Ajar
It illuminates when you switch theignition on and remains on if anydoor is open.
Electric Parking Brake
It illuminates or flashes when theelectric parking brake requiresservice.
Engine Coolant Temperature
If it illuminates, safely stop yourvehicle and switch your vehicle off.
Fasten Seatbelt
It illuminates and a tone soundsuntil you fasten the seatbelts.
Hood Ajar
It illuminates when the ignition ison and the hood is not completelyclosed.
Liftgate Ajar
It illuminates when the ignition ison and the liftgate is notcompletely closed.
Low Beam Warning
It illuminates when the low beamheadlamp requires service. Havethe system checked as soon aspossible.
Low Fuel Level
It illuminates when the fuel level islow.
Low Tire Pressure
It illuminates when your tirepressure is low. If illuminated,check your tire pressure as soonas possible. If it begins to flash at anytime,have the system checked as soon aspossible.
Low Washer Fluid Level
It illuminates when the washer fluidis low.
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2023 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202207, DOMInstrument ClusterE270480 E67024 E146190 E103308 E71880 E246598 E162453 E181350 E139232 E132353

Malfunction Indicator Lamp
It illuminates when the ignition ison and the engine is off, this isnormal operation. If it illuminateswhen the engine is on this indicates that theemission control system requires service. Ifit flashes, have your vehicle checkedimmediately. See Starting and Stopping theEngine – Warning Lamps (page 206). SeeEmission Law (page 621).
Oil Pressure
It illuminates when the engine oilpressure is low.
Powertrain Fault
It illuminates when the powertrainrequires service. Have yourvehicle checked as soon aspossible.
WHAT ARE THE INSTRUMENT
CLUSTER INDICATORS
Indicators notify you of various features thatare active on your vehicle.
INSTRUMENT CLUSTER
INDICATORS
ActiveGlide™ (If Equipped)
See ActiveGlide™ (page 286).
Adaptive Cruise Control
See Adaptive Cruise Control(page 270).
Airbag
See Airbags (page 61).
Auto Hold
See Auto Hold (page 243).
Automatic High Beam
See Automatic High BeamControl (page 124).
Auto Start-Stop
See Auto-Start-Stop (page 208).
Blind Spot Information System
See Blind Spot InformationSystem (page 311).
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2023 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202207, DOMInstrument ClusterE67028 E67022 E297977 E144524 E67017 E323448 E323449 E146105 E121377 E146361 E151262

WHAT IS THE HEAD UP DISPLAY
The system displays information on a displayscreen in your field of vision, allowing you tokeep your eyes on the road. You can selectwhich information the system displays.
SWITCHING THE HEAD UP
DISPLAY ON AND OFF
Use the instrument cluster controls on thesteering wheel to navigate to the head updisplay menu.
ActionMenu Item
Press the OK button.HUD
Press the OK button.HUD On
Note:The system remembers the last settingwhen you start the engine.
HEAD UP DISPLAY SETTINGS
You can control the system's options throughthe instrument cluster display by using theHUD, OK and arrow buttons on your steeringwheel. See Using the Instrument ClusterDisplay Controls (page 148).
You can adjust the display according to yourheight to make viewing the content easier.You can also adjust what content displaysand the brightness of the content. Thesystem's options appear in the instrumentcluster while the updates happen in the headup display.
Note:If HUD On is unchecked, other optionsof the system are hidden.
Note:The head up display menuautomatically closes after a certain periodof inactivity.
Note:The head up display image brightnessautomatically adjusts to the brightness ofthe ambient environment. You have theability to adjust the brightness furtheraccording to your preference.
Note:In some instances, sunlight can causesome reflections in and around the head updisplay image.
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2023 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202207, DOMHead Up Display (If Equipped)