check engine LINCOLN NAUTILUS 2023 Owners Manual

Emergency Towing.....................................324
Fuses
Fuse Precautions........................................325
Under Hood Fuse Box...............................325
Body Control Module Fuse Box..............335
Identifying Fuse Types...............................340
Fuses – Troubleshooting..........................340
Maintenance
Maintenance Precautions..........................341
Opening and Closing the Hood...............341
Under Hood Overview - 2.0L...................343
Under Hood Overview - 2.7L...................345
Engine Oil......................................................347
Checking the Coolant................................349
Engine Air Filter...........................................353
Changing the Fuel Filter............................355
Drive Belt Routing Overview - 2.0L........355
Drive Belt Routing Overview - 2.7L........355
Changing the 12V Battery.........................355
Adjusting the Headlamps.........................358
Exterior Bulbs................................................361
Interior Bulbs................................................364
Vehicle Care
Cleaning Products......................................365
Cleaning the Exterior.................................366
Waxing...........................................................368
Cleaning the Interior..................................368
Repairing Minor Paint Damage.................371
Body Styling Kits
Body Styling Kit Precautions....................372
Storing Your Vehicle
Preparing Your Vehicle for Storage........373
Removing Your Vehicle From Storage......................................................................374
Wheel and Tire Information
Locating the Tire label...............................375
Department of Transportation Uniform TireQuality Grades.........................................375
Information on the Tire Sidewall.............376
Glossary of Tire Terminology....................381
Tire Replacement Requirements.............381
Using Snow Chains.....................................384
Tire Care
Checking the Tire Pressures....................386
Inflating the Tires........................................386
Inspecting the Tire for Wear.....................386
Inspecting the Tire for Damage...............387
Inspecting the Wheel Valve Stems.........388
Tire Rotation.................................................388
Tire Sealant and Inflator Kit
What Is the Tire Sealant and Inflator Kit......................................................................389
Tire Sealant and Inflator Kit Precautions......................................................................389
Locating the Tire Sealant and Inflator Kit......................................................................389
Tire Sealant and Inflator Kit Components......................................................................390
Using the Tire Sealant and Inflator Kit......................................................................390
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2023 Nautilus (CD9) 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 Nautilus (CD9) 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

Make sure that:
•The parking brake is set.
•The transmission is in park (P).
•The ignition is off.
•The driver and front passenger seatbeltsare unfastened.
1.Switch the ignition on. Do not start theengine.
2.After Step 1, wait an additional fiveseconds before proceeding with Step 3.Once you start Step 3, you mustcomplete the procedure within 30seconds.
3.For the seating position you are switchingoff, buckle then unbuckle the seatbeltfour times at a moderate speed, endingin the unbuckled state. After Step 3, theseatbelt warning light switches on.
4.When the seatbelt warning light is on,buckle then unbuckle the seatbelt. AfterStep 4, the seatbelt warning light flashesfor confirmation.
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 370).
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 Nautilus (CD9) 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 478).
Note:This is a configurable gauge.
12V BATTERY GAUGE
Indicates the power of the 12-volt battery.
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 Nautilus (CD9) 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 Nautilus (CD9) 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 197). SeeEmission Law (page 572).
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
Adaptive Cruise Control
See Adaptive Cruise Control(page 258).
Adaptive Steering
See Electric Power Steering (page236).
Airbag
See Airbags (page 64).
Auto Hold
See Auto Hold (page 230).
Automatic High Beam
See Automatic High BeamControl (page 124).
Auto Start-Stop
See Auto-Start-Stop (page 200).
Blind Spot Information System
See Blind Spot InformationSystem (page 279).
Cruise Control (If Equipped)
See Cruise Control (page 256).
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2023 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202207, DOMInstrument ClusterE67028 E67022 E144524 E223375 E67017 E197933 E197934 E146105 E121377 E151262 E71340

All electrical circuits and accessories areoperational and the warning lamps andindicators illuminate.
Note:Your vehicle has a battery saverfeature that shuts your vehicle off when itdetects a certain amount of battery drain, orafter approximately 30 minutes of inactivityin accessory mode.
Note:The system may not function if theremote control is close to metal objects orelectronic devices, for example keys or acell phone.
Note:You need a valid key inside yourvehicle to switch the ignition on and start theengine.
STARTING THE ENGINE
STARTING A GASOLINE ENGINE
Before starting your vehicle, check thefollowing:
•Make sure that the headlamps andelectrical accessories are off.
•Make sure that the parking brake is on.
•Make sure that the transmission is in park(P).
1.Fully press the brake pedal.
Note:Do not touch the accelerator pedal.
2.Press the push button ignition switch.
Note:The engine may continue cranking forup to 15 seconds or until it starts.
Note:The engine takes longer to start atlower temperatures. It may crank for severalseconds when very cold.
RESTARTING THE ENGINE AFTERSTOPPING IT
The system allows you to start the enginewithin 10 seconds of switching it off, even ifit does not detect a valid passive key.
Within 10 seconds of switching the engineoff, fully press the brake pedal and press thepush button ignition switch. After 10 seconds,you can no longer start the engine if thesystem does not detect a valid passive key.
When you start the engine, it remains runninguntil you press the push button ignitionswitch, even if your vehicle does not detecta valid passive key. If you open and close adoor when the engine is running, the systemsearches for a valid passive key.
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2023 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202207, DOMStarting and Stopping the EngineE357998

ENGINE BLOCK HEATER (IF EQUIPPED)
ENGINE BLOCK HEATERPRECAUTIONS
WARNING: Failure to follow engineblock heater instructions could result inproperty damage or serious personalinjury.
WARNING: Do not use your heaterwith ungrounded electrical systems ortwo-pronged adapters. There is a risk ofelectrical shock.
WARNING: Do not fully close thehood, or allow it to drop under its ownweight when using the engine blockheater. This could damage the power cableand may cause an electrical short resultingin fire, injury and property damage.
We recommend that you do the following fora safe and correct operation:
•Use a 16-gauge outdoor extension cordthat is product certified by Underwriter’sLaboratory (UL) or Canadian StandardsAssociation (CSA). This extension cordmust be suitable for use outdoors, in coldtemperatures, and be clearly markedSuitable for Use with OutdoorAppliances. Do not use an indoorextension cord outdoors. This couldresult in an electric shock or become afire hazard.
•Use as short an extension cord aspossible.
•Do not use multiple extension cords.
•Make sure that when in operation, theextension cord plug and engine blockheater cord plug connections are freeand clear of water. This could cause anelectric shock or fire.
•If the engine block heater cord is underthe hood, do not remove the wiring fromits original location. Do not close thehood on the extension wiring.
•Park your vehicle in a clean area, clearof combustible materials.
•Firmly connect the engine block heatercord and the extension cord.
•Check the extension cord for heatanywhere when the system has beenoperating for approximately 30 minutes.
•Unplug and properly stow the systembefore starting and driving your vehicle.The protective cover seals the terminalsof the engine block heater cord plugwhen not in use.
•Check the engine block heater systemfor proper operation before winter.
HOW DOES THE ENGINE BLOCKHEATER WORK
The engine block heater warms the enginecoolant. This allows the climate controlsystem to quickly respond. The equipmentincludes a heater element installed in theengine block and a wire harness. You canconnect the system to a grounded 110 voltAC electrical source.
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2023 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202207, DOMStarting and Stopping the Engine

2.With the buttons facing upward and theunlock button facing the front of yourvehicle, place the passive key into thebackup slot.
3.With the key in this position, press thebrake pedal then press the push buttonignition switch to switch the ignition onand start your vehicle.
STARTING AND STOPPING THE
ENGINE – TROUBLESHOOTING
STARTING AND STOPPING THEENGINE – WARNING LAMPS
Malfunction Indicator Lamp
If it illuminates when the engine isrunning, the on-board diagnosticssystem is detecting a malfunctionof the vehicle emission control system.
If it flashes, engine misfire could beoccurring. Increased exhaust gastemperatures could damage the catalyticconverter or other vehicle components.Avoid heavy acceleration and deceleration,and have your vehicle checked as soon aspossible.
Powertrain Warning Lamp
If it illuminates when the engine isrunning, this indicates a powertrainor four-wheel drive fault. If itflashes when you are driving, immediatelyreduce the vehicle speed. Avoid heavyacceleration and deceleration, and have yourvehicle checked as soon as possible.
If both lamps illuminate when the engine isrunning, stop your vehicle as soon as it issafe to do so. Continuing to drive yourvehicle could cause reduced power or theengine to stop. Switch the ignition off andattempt to restart the engine. Have yourvehicle checked as soon as possible.
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2023 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202207, DOMStarting and Stopping the EngineE203694 E67028

STARTING AND STOPPING THE ENGINE – INFORMATION MESSAGES
ActionMessage
Displays if you exceed the starting time limit. You cannot attempt to start the engine for 15 minutes.If you cannot start the engine after 15 minutes passes, have your vehicle immediately checked.Cranking Time Exceeded
Displays if you are unable to start your vehicle with a correctly coded key. The system hasdetected a fault that requires service. Have your vehicle checked as soon as possible.Starting System Fault
Displays if the system does not detect a valid passive key.No Key Detected
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2023 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202207, DOMStarting and Stopping the Engine