2021 LINCOLN NAUTILUS maintenance

Recreationally Towing Your Vehicle - 2.0L,
FWD .............................................................314
Recreationally Towing Your Vehicle - 2.7L .......................................................................
314
Emergency Towing ......................................
315
Fuses
Fuse Precautions ..........................................
316
Under Hood Fuse Box ................................
316
Body Control Module Fuse Box ..............
326
Identifying Fuse Types ................................
331
Fuses – Troubleshooting ...........................
331
Maintenance
Maintenance Precautions .........................
332
Opening and Closing the Hood ..............
332
Under Hood Overview - 2.0L ...................
334
Under Hood Overview - 2.7L ...................
336
Engine Oil ......................................................
338
Checking the Coolant ................................
340
Changing the Engine Air Filter .................
344
Changing the Fuel Filter ............................
344
Drive Belt Routing Overview - 2.0L ........
345Drive Belt Routing Overview - 2.7L
.........
345
Changing the 12V Battery .........................
345
Adjusting the Headlamps ..........................
348
Exterior Bulbs ...............................................
350
Interior Bulbs ................................................
353
Vehicle Care
Cleaning Products .......................................
354
Cleaning the Exterior .................................
355
Waxing ............................................................
357
Cleaning the Interior ...................................
357
Repairing Minor Paint Damage ................
359
Body Styling Kits
Body Styling Kit Precautions ....................
360
Storing Your Vehicle
Preparing Your Vehicle for Storage .........
361
Removing Your Vehicle From Storage ......................................................................
362
Wheel and Tire Information
Locating the Tire label ...............................
363Department of Transportation Uniform Tire
Quality Grades .........................................
363
Information on the Tire Sidewall .............
364
Glossary of Tire Terminology ...................
369
Tire Replacement Requirements ............
369
Using Snow Chains .....................................
372
Tire Care
Checking the Tire Pressures ....................
374
Inflating the Tires .........................................
374
Inspecting the Tire for Wear .....................
375
Inspecting the Tire for Damage ...............
375
Inspecting the Wheel Valve Stems .........
376
Tire Rotation .................................................
376
Tire Sealant and Inflator Kit
What Is the Tire Sealant and Inflator Kit ......................................................................
378
Tire Sealant and Inflator Kit Precautions ......................................................................
378
Locating the Tire Sealant and Inflator Kit ......................................................................
378
Tire Sealant and Inflator Kit Components ......................................................................
379
11
2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Table of Contents

Performing a Master Reset
.......................453
Accessories
Accessories ..................................................
454
Lincoln Protect
What Is Lincoln Protect ..............................
456
Scheduled Maintenance
General Maintenance Information ..........
459
Normal Scheduled Maintenance ............
463
Special Operating Conditions Scheduled Maintenance .............................................
467
Customer Information
Rollover Warning .........................................
472
The Better Business Bureau Auto Line Program .....................................................
472
The Mediation and Arbitration Program ......................................................................
473
Ordering a Canadian French Owner's Manual .......................................................
474
Reporting Safety Defects in the United States ..........................................................
474 Reporting Safety Defects in Canada
......
475
Declaration of Conformity .........................
476
Radio Frequency Certification Labels ......................................................................
476
California Proposition 65 ...........................
514
Perchlorate ....................................................
514
Replacement Parts Recommendation .......................................................................
514
Mobile Communications Equipment .......
515
End User License Agreement ...................
516
Emission Law ................................................
546
Appendices
Electromagnetic Compatibility .................
548
14
2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Table of Contents

WARNING: Do not connect wireless
plug-in devices to the data link connector.
Unauthorized third parties could gain
access to vehicle data and impair the
performance of safety related systems.
Only allow repair facilities that follow our
service and repair instructions to connect
their equipment to the data link connector.
We respect your privacy and are committed
to protecting it. The information contained
in this manual was correct at the time of
publication but as technology rapidly
changes, we recommend that you visit the
local Lincoln website for the latest
information.
Your vehicle has electronic control units that
have data recording functionality and the
ability to permanently or temporarily store
data. This data could include information on
the condition and status of your vehicle,
vehicle maintenance requirements, events
and malfunctions. The types of data that can
be recorded are described in this section.
Some of the data recorded is stored in event
logs or error logs. Note:
Error logs are reset following a service
or repair.
Note: We may provide information in
response to requests from law enforcement,
other government authorities and third
parties acting with lawful authority or through
a legal process. Such information could be
used by them in legal proceedings.
Data recorded includes, for example:
• Operating states of system components,
for example fuel level, tire pressure and
battery charge level.
• Vehicle and component status, for
example wheel speed, deceleration,
lateral acceleration and seatbelt status.
• Events or errors in essential systems, for
example headlamps and brakes.
• System responses to driving situations,
for example airbag deployment and
stability control.
• Environmental conditions, for example
temperature. Some of this data, when used in combination
with other information, for example an
accident report, damage to a vehicle or
eyewitness statements, could be associated
with a specific person.
Services That We Provide
If you use our services, we collect and use
data, for example account information,
vehicle location and driving characteristics,
that could identify you. We transmit this data
through a dedicated, protected connection.
We only collect and use data to enable your
use of our services to which you have
subscribed, with your consent or where
permitted by law. For additional information,
see the terms and conditions of the services
to which you have subscribed.
For additional information about our privacy
policy, refer to the local Lincoln website.
22
2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Data Privacy

This switches the feature on for that seating
position if it is currently off.
CHECKING THE SEATBELTS
Check the seatbelts and child restraints
periodically to make sure they work properly
and are not damaged. Make sure there are
no nicks, tears or cuts. Replace if necessary.
Check the following seatbelt assemblies after
a 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's
instructions for additional inspection and
maintenance information specific to the child
restraint. We recommend that all seatbelt assemblies
in use in vehicles involved in a crash be
replaced. However, if the crash was minor
and an authorized dealer finds that the belts
do not show damage and continue to
operate properly, they do not need to be
replaced. Seatbelt assemblies not in use
during a crash should also be checked and
replaced if either damage or improper
operation is noted.
Properly care for seatbelts. See Cleaning
Seatbelts (page 358).
SEATBELT EXTENSIONS WARNING:
Persons who fit into the
vehicle's seatbelt should not use an
extension. Unnecessary use could result
in serious personal injury in the event of a
crash. WARNING:
Only use extensions
provided free of charge by our dealers.
The dealer will provide an extension
designed specifically for this vehicle, model
year and seating position. The use of an
extension intended for another vehicle,
model year or seating position may not
offer you the full protection of your
vehicle's seatbelt restraint system. WARNING:
Never use seatbelt
extensions to install child restraints. WARNING:
Do not use extensions
to change the way the seatbelt fits across
the torso, over the lap or to make the
seatbelt buckle easier to reach.
60
2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Seatbelts

HOW DO THE FRONT AIRBAGS
WORK
The driver and front passenger airbags
deploy during significant frontal and near
frontal crashes.
The driver and passenger front airbag system
consists of:
•
Driver and passenger airbag modules.
• Front passenger sensing system.
• Crash sensors and monitoring system
with readiness indicator. See Crash
Sensors and Airbag Indicator (page 71). The airbags are a supplemental restraint
system and are designed to work with the
seatbelts to help protect the driver and right
front passenger from certain upper body
injuries. Airbags do not inflate slowly; there
is a risk of injury from a deploying airbag.
Note:
You will hear a loud bang and see a
cloud of harmless powdery residue if an
airbag deploys. This is normal.
The airbags inflate and deflate rapidly upon
activation. After airbag deployment, it is
normal to notice a smoke-like, powdery
residue or smell the burnt propellant. This
may consist of cornstarch, talcum powder (to
lubricate the bag) or sodium compounds (for
example, baking soda) that result from the
combustion process that inflates the airbag.
Small amounts of sodium hydroxide may be
present which may irritate the skin and eyes,
but none of the residue is toxic.
Contact with a deploying airbag may cause
abrasions or swelling. Temporary hearing
loss is also a possibility as a result of the
noise associated with a deploying airbag. Because airbags must inflate rapidly and with
considerable force, there is the risk of death
or serious injuries such as fractures, facial
and eye injuries or internal injuries,
particularly to occupants who are not
properly restrained or are otherwise out of
position at the time of airbag deployment.
Thus, it is extremely important that occupants
be properly restrained as far away from the
airbag module as possible while maintaining
vehicle control.
Routine maintenance of the airbags is not
required.
HOW DO THE SIDE AIRBAGS
WORK
WARNING:
Do not place objects or
mount equipment on or near the airbag
cover, on the side of the front or rear
seatbacks, or in areas that may come into
contact with a deploying airbag. Failure to
follow these instructions may increase the
risk of personal injury in the event of a
crash.
63
2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Airbags E151127

CRASH SENSORS AND AIRBAG
INDICATOR
WARNING: Modifying or adding
equipment to the front end of your vehicle
(including hood, bumper system, frame,
front end body structure, tow hooks and
hood pins) may affect the performance of
the airbag system, increasing the risk of
injury. Do not modify or add equipment to
the front end of your vehicle.
Your vehicle has a collection of crash and
occupant sensors. These sensors provide
information to the restraints control module
which activates the following:
• Front and rear seatbelt pretensioners.
• Driver airbag.
• Passenger airbag.
• Knee airbag(s).
• Seat mounted side airbags.
• Safety Canopy. Based on the type of crash, the restraints
control module deploys the appropriate
safety devices.
The restraints control module also monitors
the readiness of the above safety devices
plus the crash and occupant sensors. The
readiness of the safety system is indicated
by a warning indicator light in the instrument
cluster or by a backup tone if the warning
light is not working. Routine maintenance of
the airbag is not required.
A difficulty with the system is indicated by
one or more of the following:
The readiness light will not
illuminate immediately after you
switch the ignition on.
• The readiness light either flashes or stays
on.
• You hear a series of five tones. The tone
pattern repeats periodically until the
problem, the light or both are repaired. If any of these things happen, even
intermittently, have the supplemental
restraint system serviced immediately.
Unless serviced, the system may not function
properly in the event of a crash.
The fact that the seatbelt pretensioners or
front airbags did not activate for both front
seat occupants in a crash does not mean
that something is wrong with the system.
Rather, it means the restraints control module
determined the accident conditions (crash
severity, seatbelt usage) were not
appropriate to activate these safety devices.
•
The front airbags activate only in frontal
and near-frontal crashes. Front airbags
may activate in rollovers, side impacts or
rear impacts if the crash causes sufficient
frontal deceleration.
• The seatbelt pretensioners activate in
frontal, near-frontal and side crashes, and
in rollovers.
• The knee airbag(s) deploy based on
crash severity and occupant conditions.
71
2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing AirbagsE67017

What Is Distance to Empty
Indicates the approximate distance your
vehicle can travel on the fuel remaining in
the tank. Changes in driving pattern can
cause the value to not only decrease but also
increase or stay constant for periods of time.
WHAT IS THE ENGINE COOLANT
TEMPERATURE GAUGE
Indicates the engine coolant temperature.
WHAT IS THE ENGINE OIL
PRESSURE GAUGE
Indicates the engine oil pressure.
Note:
This is a configurable gauge.
WHAT IS THE TRANSMISSION
FLUID TEMPERATURE GAUGE
Indicates the transmission fluid temperature. Special operating conditions can cause
higher than normal operating temperatures.
See Special Operating Conditions
Scheduled Maintenance (page 467).
Note: This is a configurable gauge.
WHAT IS THE 12V BATTERY
GAUGE
Indicates the power of the 12-volt battery.
WHAT ARE THE INSTRUMENT
CLUSTER WARNING LAMPS
Warning lamps alert you to a vehicle
condition that could become serious. Some
lamps illuminate when you start your vehicle
to make sure they work. If any lamps remain
on after starting your vehicle, refer to the
respective system warning lamp for further
information. INSTRUMENT CLUSTER WARNING
LAMPS
Anti-Lock Brake System If it illuminates when you are
driving, this indicates that the
system requires service. Your
vehicle continues to have normal braking
without the anti-lock brake system function.
Have your vehicle checked as soon as
possible.
Battery It illuminates when you switch the
ignition on.
If it illuminates when the engine is
running, this indicates your vehicle requires
service. Have your vehicle checked as soon
as possible.
139
2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Instrument Cluster

WHAT IS THE CABIN AIR FILTER
The cabin air filter improves the quality of air
in your vehicle by trapping dust, pollen and
other particles.
REPLACING THE CABIN AIR FILTER
Replace the filter at regular intervals. See
Scheduled Maintenance (page 459).
The cabin air filter is behind the glove
compartment.
To remove the lower glove compartment and
access the filter:
1. Open the glove compartment. 2. Press the tab on each side.
3. Fully lower the glove compartment.
4. Pull the glove compartment toward you.
158
2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Interior Air QualityE311296