2021 LINCOLN NAUTILUS automatic transmission

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

Towing a trailer or using a car-top carrier
Change engine oil and filter as indicated by the information display and\
perform services listed in the Normal
Scheduled Maintenance chart.
As required
Inspect rear axle and U-joints (AWD only).
Inspect frequently, service
as required
Inspect half-shaft boots.
See axle maintenance items under Exceptions.
Change automatic transmission fluid.
Every
30,000 mi
(48,000 km)
Replace spark plugs.
Every
60,000 mi
(96,000 km)
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2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Scheduled Maintenance

Extensive idling or low-speed driving for long distances, as in heavy co\
mmercial use
Change engine oil and filter as indicated by the information display and\
perform services listed in the Normal
Scheduled Maintenance chart.
As required
Replace cabin air filter.
Inspect frequently, service
as required
Replace engine air filter.
Change automatic transmission fluid.
Every 30,000 mi
(48,000 km)
Replace spark plugs.
Every
60,000 mi
(96,000 km) Extended Hot and Cold climate operation
Change engine oil and filter. *
Every
5,000 mi (8,000 km)
* Hot Climates only
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2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Scheduled Maintenance

Operating in off-road (unpaved, sandy, dusty) and Mountainous conditions
Replace cabin air filter.
Inspect frequently, service
as required
Replace engine air filter.
Inspect the wheels and related components for abnormal noise, wear, looseness or drag.
Every 5,000 mi (8,000 km)
Rotate tires, inspect tires for wear and measure tread depth.
Change engine oil and filter. *
Every
5,000 mi (8,000 km)
or 6 months
Perform multi-point inspection.
Change automatic transmission fluid.
Every
30,000 mi
(48,000 km)
* Reset your Intelligent Oil-Life Monitor after engine oil and filter chang\
es.
See Resetting the Engine Oil Change Reminder (page 339).
Exceptions
There are several exceptions to the Normal
Schedule:
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2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Scheduled Maintenance

Auto Hold Indicators....................................227
Autolamps.......................................................120
Autolamp Settings..............................................120
What Are Autolamps..........................................120
Autolock.............................................................91 Autolock Requirements........................................91
What Is Autolock....................................................91
Automatically Releasing the Electric Parking Brake.............................................222
Automatic Crash Shutoff.............................312 Automatic Crash Shutoff Precautions............312
Re-Enabling Your Vehicle..................................312
What Is Automatic Crash Shutoff....................312
Automatic Emergency Braking.................284 Switching Automatic Emergency Braking On
and Off..............................................................284
What Is Automatic Emergency Braking........284
Automatic Engine Stop................................189 How Does Automatic Engine Stop
Work...................................................................190
Overriding Automatic Engine Stop.................190
Switching Automatic Engine Stop On and Off.......................................................................190
What Is Automatic Engine Stop.......................189
Automatic High Beam Control...................122 Automatic High Beam Control
Indicators..........................................................124 Automatic High Beam Control
Limitations.........................................................123
Automatic High Beam Control Precautions .......................................................123
Automatic High Beam Control Requirements...................................................123
How Does Automatic High Beam Control Work...................................................................122
Overriding Automatic High Beam Control...............................................................124
Switching Automatic High Beam Control On and Off...............................................................124
Automatic High Beam Control – Troubleshooting..........................................125
Automatic High Beam Control – Information Messages..........................................................125
Automatic Locking Mode.............................55 Disengaging Automatic Locking Mode..........56
Engaging Automatic Locking Mode................56
What Is Automatic Locking Mode....................55
Automatic Return to Park (P).....................209 Automatic Return to Park (P)
Limitations.......................................................209
How Does Automatic Return to Park (P) Work..................................................................209
What Is Automatic Return to Park (P)............209 Automatic Transmission Audible
Warnings.......................................................212
Park (P) Selection Audible Warning................212
Transmission Not In Park (P) Audible Warning.............................................................212
Automatic Transmission.............................206 Automatic Return to Park (P)...........................209
Automatic Transmission Positions.................
206
Automatic Transmission – Troubleshooting..............................................212
Manually Shifting Gears....................................207
Manual Park Release..........................................210
Temporary Neutral Mode.................................208
Automatic Transmission Position Indicators.....................................................207
Automatic Transmission Positions...........206 Drive (D)................................................................207
Neutral (N)............................................................206
Park (P)..................................................................206
Reverse (R) ..........................................................206
Sport (S).................................................................207
Automatic Transmission Precautions.................................................206
Automatic Transmission – Troubleshooting..........................................212
Automatic Transmission – Information Messages..........................................................212
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2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Index