2021 LINCOLN NAUTILUS engine coolant

Normal Maintenance Intervals
At Every Oil Change Interval as Indicated by the Information Display
1
Change the engine oil and filter. 2
Rotate the tires.
Perform a multi-point inspection, recommended.
Inspect the automatic transmission fluid level. Consult your dealer for \
requirements.
Inspect the brake pads, rotors, hoses and the parking brake.
Inspect the engine coolant level/strength and the hoses.
Inspect the exhaust system and the heat shields.
Inspect the rear axle and U-joints - all wheel drive only.
Inspect the half-shaft boots.
Inspect the steering linkage, ball joints, suspension, tire-rod ends, driveshaft and U-joints.
Inspect the tires, tire wear and measure the tread depth.
Inspect the wheels and related components for abnormal noise, wear, looseness or drag.
1 Do not exceed one year or 10,000 mi (16,000 km) between service intervals.
2 Reset the oil change reminder after engine oil and filter changes.
See Resetting the Engine Oil Change Reminder (page 339).
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2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Scheduled Maintenance

Other Maintenance Items
1
Replace the cabin air filter.
Every 20,000 mi
(32,000 km)
Replace the engine air filter.
Every
30,000 mi
(48,000 km)
Replace the spark plugs.
Every
100,000 mi
(160,000 km) Inspect the accessory drive belt or belts. 2
Change the automatic transmission fluid.
Every
150,000 mi
(240,000 km) Replace the accessory drive belt or belts. 3
Change the engine coolant. 4
At
200,000 mi
(320,000 km)
1 Perform these maintenance items within 3,000 mi (4,800 km) of the last engine oil and filter change. Do not exceed the designated distance
for the interval.
2 After initial inspection, inspect every other oil change until replaced\
.
3 If not replaced within the last
100,000 mi (160,000 km).
4 Initial replacement at 10 years or
200,000 mi (320,000 km), then every five years or 100,000 mi (160,000 km).
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2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Scheduled Maintenance

Catalytic Converter –
Troubleshooting.........................................204
Catalytic Converter – Warning Lamps..........204
Center Console................................................31
Changing a Flat Tire.....................................391 ........................................................................\
........396
Dissimilar Spare Wheel and Tire Assembly
Information.......................................................391
Stowing the flat tire ...........................................396
Tire Change Procedure....................................392
Changing a Road Wheel.............................391
Changing the 12V Battery..........................345 Remove and Reinstall the Battery..................347
Changing the Engine Air Filter..................344
Changing the Fuel Filter.............................344
Changing the Remote Control Battery.............................................................76
Changing the Vehicle Wi-Fi Hotspot Name or Password.................................................421
Changing the Wi-Fi Hotspot Frequency.......422
Charging a Device .........................................178
Charging a Wireless Device.......................183
Checking MyKey System Status.................87 MyKey Distance.....................................................87
Number of Admin Keys.......................................87
Number of MyKeys...............................................87
Checking the Brake Fluid
...........................218 Checking the Coolant.................................340
Adding Coolant...................................................340
Coolant Change...................................................341
Engine Coolant Temperature
Management...................................................343
Fail-Safe Cooling................................................342
Severe Climates...................................................341
Checking the Seatbelts................................60
Checking the Tire Pressures.....................374
Checking the Wiper Blades.........................116
Children and Airbags.....................................67
Child Restraint Anchor Points
......................40
Locating the Child Restraint Lower Anchor
Points....................................................................41
Locating the Child Restraint Top Tether Anchor Points.....................................................41
What Are the Child Restraint Anchor Points...................................................................40
Child Restraints
................................................41
Child Restraint Position Information..................41
Child Restraints Recommendation...................43
Child Safety
......................................................39
Child Restraint Anchor Points............................40
Child Restraints.......................................................41
Installing Child Restraints....................................44
Child Safety Locks..........................................52 Left-Hand Side.......................................................52
Right-Hand Side....................................................52 Child Safety Precautions
...............................39
Cleaning Products........................................354
Materials...............................................................354
Cleaning the Exterior
..................................355
Cleaning Camera Lenses and Sensors........356
Cleaning Chrome, Aluminium or Stainless
Steel..................................................................355
Cleaning Headlamps and Rear Lamps.........355
Cleaning Stripes or Graphics..........................356
Cleaning the Engine Compartment...............356
Cleaning Wheels................................................356
Cleaning Windows and Wiper Blades
..........355
Cleaning the Interior....................................357 Cleaning Carpets and Floor Mats..................358
Cleaning Displays and Screens......................357
Cleaning Fabric Seats and Headliners.........358
Cleaning Leather and Vinyl ............................357
Cleaning Moonroof Tracks...............................359
Cleaning Plastic...................................................357
Cleaning Seatbelts.............................................358
Cleaning Storage Compartments..................358
Cleaning the Instrument Panel........................357
Clearing All MyKeys.......................................86
Clearing the Garage Door Opener...........176
Climate Control..............................................154 Auto Mode............................................................156
Climate Control – Troubleshooting................157
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2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Index

How Do the Knee Airbags Work.................64
How Do the Side Airbags Work..................63
I
Identifying Fuse Types
.................................331
Identifying the Audio Unit..........................429
Identifying the Climate Control Unit.........154
Inflating the Tires
..........................................374
Information and Entertainment Display Limitations....................................................431
Speed-restricted Features................................431
Information and Entertainment Display Overview.......................................................431
Information and Entertainment Display Precautions..................................................431
Information On Demand Screen..............433
Information on the Tire Sidewall..............364 Information on P Type Tires............................364
Inspecting the Tire for Damage................375 Safety Practices..................................................375
Inspecting the Tire for Wear......................375
Inspecting the Wheel Valve Stems..........376
Installing and Removing the Luggage Compartment Cargo Net.........................295
Installing and Removing the Luggage Compartment Cover
.................................295
Installing the Luggage Cover..........................296 Removing the Luggage Cover........................296
Installing Child Restraints..............................44 Combining the Seatbelt and Lower Anchors
for Attaching Child Restraints........................
47
Installing a Child Restraint in a Center Seat......................................................................47
Using Lower Anchors and Tethers for Children..............................................................46
Using Seatbelts.....................................................44
Using Tether Straps..............................................48
Instrument Cluster Display..........................143 Personalized Settings.........................................148
Trip Computer......................................................145
Instrument Cluster Display Main Menu..............................................................144
Instrument Cluster Indicators
......................141
Adaptive Cruise Control.....................................141
Adaptive Steering.................................................141
Airbag......................................................................141
Auto Hold...............................................................141
Automatic High Beam.........................................141
Auto Start-Stop......................................................141
Blind Spot Information System.........................141
Cruise Control.......................................................141
Front Fog Lamp....................................................142
Headlamp High Beam........................................142
Hill Start Assist.....................................................142
Parking Lamps......................................................142 Stability and Traction Control...........................
142
Turn Signal............................................................142
Instrument Cluster
.........................................137
Fuel Gauge............................................................138
Instrument Cluster Overview......................137
Instrument Cluster Warning Lamps
..........139
Anti-Lock Brake System....................................139
Battery....................................................................139
Brake System.......................................................140
Door Ajar...............................................................140
Electric Parking Brake........................................140
Engine Coolant Temperature...........................140
Fasten Seatbelt....................................................140
Hood Ajar..............................................................140
Liftgate Ajar...........................................................140
Low Beam Warning.............................................140
Low Fuel Level.....................................................140
Low Tire Pressure...............................................140
Low Washer Fluid Level.....................................140
Malfunction Indicator Lamp...............................141
Oil Pressure...........................................................141
Powertrain Fault....................................................141
Instrument Panel
.............................................29
Interior Air Quality.........................................158
Interior Bulbs.................................................353
Interior Bulb Specification Chart....................353
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2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Index

What Is the 12V Battery Gauge..................139
What Is the 360 Degree Camera.............243
What Is the Cabin Air Filter.........................158
What Is the Catalytic Converter...............204
What Is the Electric Parking Brake...........221
What Is the Engine Coolant Temperature
Gauge............................................................139
What Is the Engine Oil Pressure Gauge............................................................139
What Is the Garage Door Opener.............173 HomeLink Wireless Control System...............173
What Is the Gross Axle Weight Rating...........................................................290
GAWR (Gross Axle Weight Rating)................290
What Is the Gross Combined Weight Rating...........................................................290
What Is the Gross Vehicle Weight Rating...........................................................290
What Is the Keyless Entry Keypad..............95
What Is the Lane Keeping System...........265
What Is the Personal Safety System..........62
What Is the Power Outlet............................180
What is the Rear Occupant Alert System...........................................................169
What Is the Rear View Camera.................240
What Is the Speedometer...........................138
What Is the Tachometer...............................138 What Is the Tire Pressure Monitoring
System..........................................................385
What Is the Tire Sealant and Inflator Kit...................................................................378
What Is the Transmission Fluid Temperature Gauge
...................................139
What Is the Wireless Accessory Charger.........................................................182
What is Voice Interaction
...........................435
Wheel and Tire Information.......................363
Wheel Nuts....................................................396
Window Bounce-Back
..................................130
Overriding Window Bounce-Back..................130
What Is Window Bounce-Back.........................130
Windows..........................................................129 Global Opening and Closing............................
130
Window Bounce-Back........................................130
Wipers and Washers – Troubleshooting...........................................118
Wipers and Washers – Frequently Asked Questions...........................................................118
Wipers and Washers – Warning Lamps..........118
Wipers and Washers
......................................114
Autowipers.............................................................114
Reverse Wipe........................................................115
Washers...................................................................117
Wipers.....................................................................114
Wipers and Washers – Troubleshooting........118 Wipers...............................................................114
Switching Windshield Wipers On and
Off........................................................................\
114
Wiper Precautions................................................114
Wireless Accessory Charger Precautions..................................................182
Wireless Accessory Charger......................182
575
2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Index