2021 LINCOLN NAVIGATOR maintenance

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, inspect tire wear and measure tread depth.
Perform a multi-point inspection - recommended.
Inspect the automatic transmission fluid level - vehicles with dipstick.\
Consult your dealer for requirements.
Inspect the brake pads, rotors, hoses and parking brake.
Inspect the engine cooling system strength and hoses.
Inspect the exhaust system and heat shields.
Inspect the front axle and U-joints.
Inspect the half-shaft boots.
Inspect the steering linkage, ball joints, suspension, tire-rod ends, driveshaft and U-joints.
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 Intelligent Oil-Life Monitor after engine oil and filter change\
s.
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Brake Fluid Maintenance
1
Change the brake fluid. 2
Every 3 Years
1 Perform this maintenance item every 3 years. Do not exceed the designated time for the interval.
2 Brake fluid servicing requires special equipment available at your authorize\
d dealer. 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(s). 2
Change the automatic transmission fluid.
Every
150,000 mi (240,000 km) Change the front axle fluid - Four-wheel drive vehicles.
Change the rear axle fluid.
Change the transfer case fluid - Four-wheel drive vehicles.
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Other Maintenance Items
1
Replace the accessory drive belt(s).
Change the engine coolant. 3
Every 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 Initial replacement at ten years or 200,000 mi (320,000 km), then every five years or 100,000 mi (160,000 km).
SPECIAL OPERATING CONDITIONS
SCHEDULED MAINTENANCE
If you operate your vehicle
primarily in any
of the following conditions, you need to
perform extra maintenance, as indicated. If
you operate your vehicle occasionally under
any of these conditions, it is not necessary
to perform the extra maintenance. For
specific recommendations, see your
dealership service advisor or technician. Perform the services shown in the following
tables when specified or within
3,000 mi
(4,800 km) of the message appearing in the
information display prompting you to change
your oil. •
Example 1: The message comes on at
28,751 mi (46,270 km). Perform the
30,000 mi (48,000 km) automatic
transmission fluid replacement.
• Example 2
: The message has not come
on, but the odometer reads 30,000 mi
(48,000 km) (for example, the Intelligent
Oil-Life Monitor was reset at 25,000 mi
(40,000 km)). Perform the engine air filter
replacement.
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Navigator (TB9) Canada/United States of America, enUSA, 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 and lubricate U-joints (if equipped with grease fittings).
Inspect frequently, service
as required
See axle maintenance items under Exceptions.
Change transfer case fluid (Four-wheel drive vehicles).
Every
60,000 mi
(96,000 km) Replace spark plugs. Extensive Idling or Low-speed Driving for Long Distances, as in Heavy Commercial 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 engine air filter.
Inspect frequently, service
as required
Replace cabin air filter.
Change transfer case fluid (Four-wheel drive vehicles).
Every
60,000 mi
(96,000 km) Replace spark plugs.
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Navigator (TB9) Canada/United States of America, enUSA, First-Printing Scheduled Maintenance

Operating in Dusty or Sandy Conditions (Such as Unpaved or Dusty Roads)
Replace engine air filter.
Inspect frequently, service
as required
Replace cabin 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. 1
Every
5,000 mi (8,000 km)
or six months
Change transfer case fluid (Four-wheel drive vehicles).
Every
60,000 mi
(96,000 km)
1 Reset your Intelligent Oil-Life Monitor after each engine oil and filter \
change. Off-road Operation
Inspect steering linkage, ball joints and U-joints. Lubricate if equipped with grease fittings.
Inspect frequently, service
as required
Replace engine air filter.
Replace cabin air filter.
Change engine oil and filter.1
Every
5,000 mi (8,000 km)
or six months
Inspect the wheels and related components for abnormal noise, wear, looseness or drag.
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Navigator (TB9) Canada/United States of America, enUSA, First-Printing Scheduled Maintenance

Off-road Operation
Rotate tires, inspect tires for wear and measure tread depth.
Change transfer case fluid (Four-wheel drive vehicles).
Every 60,000 mi
(96,000 km)
1 Reset your Intelligent Oil-Life Monitor after each engine oil and filter \
change.
Exceptions
There are several exceptions to the Normal
Schedule.
Axle and Transfer Case Maintenance
Axle(s) and transfer case (Four-wheel drive
vehicles) fluid changes or level checks are
not required unless a leak is suspected or
the assembly has been submerged in water.
Contact an authorized dealer for service. California Fuel Filter Replacement
If you register your vehicle in California, the
California Air Resources Board has
determined that the failure to perform this
maintenance item does not nullify the
emission warranty or limit recall liability
before the completion of your vehicle's
useful life. The Lincoln Motor Company,
however, urges you to have all
recommended maintenance services
performed at the specified intervals and to
record all vehicle service.Hot Climate Oil Change Intervals
Vehicles operating in the Middle East, North
Africa, Sub-Saharan Africa or locations with
similar climates using an American Petroleum
Institute (API) Certified for Gasoline Engines
(Certification mark) oil of SM or SN quality,
the normal oil change interval is
3,000 mi
(4,800 km).
If the available API SM or SN oils are not
available, then the oil change interval is
1,800 mi (2,900 km)
.
Engine Air Filter Replacement
The life of the engine air filter is dependent
on exposure to dusty and dirty conditions.
Vehicles operated in these conditions
require frequent inspection and replacement
of the engine air filter.
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SUNA Products and/or Services are intended
as an aid to personal motoring and travel
planning, and do not provide comprehensive
or accurate information on all occasions. On
occasions, you may experience additional
delay as a result of using SUNA Products
and/or Services. You acknowledge that it is
not intended, or suitable, for use in
applications where time of arrival or driving
directions may impact the safety of the public
or yourself.
4. Use of SUNA Products and Services
while driving
You, and other authorised drivers of the
vehicle in which SUNA Products and/or
Services are available or installed and active,
remain at all times responsible for observing
all relevant laws and codes of safe driving.
In particular, you agree to only actively
operate SUNA Products and/or Services
when the Vehicle is at a complete stop and
it is safe to do so.
5. Service Continuity and Reception of the
SUNA Traffic Channel
We will use reasonable endeavours to
provide the SUNA Traffic Channel 24 hours
a day, 365 days a year. The SUNA Traffic
Channel may occasionally be unavailable for
technical reasons or for planned
maintenance. We will try to perform
maintenance at times when congestion is
light. We reserve the right to withdraw SUNA
Products and/or Services at any time.
Also, we cannot assure the uninterrupted
reception of the SUNA Traffic Channel
RDS-TMC signal at any particular location.
6. Limitation of Liability
Neither Intelematics (nor its suppliers or the
manufacturer of your device (the
“Suppliers”)) shall be liable to you or to any
third party for any damages either direct,
indirect, incidental, consequential or
otherwise arising out of the use of or inability to use SUNA Products and/or Services even
if Intelematics or a Supplier has been advised
of the possibility of such damages. You also
acknowledge that the neither Intelematics
nor any Supplier guarantees nor make any
warranties that relate to the availability,
accuracy or completeness of SUNA Products
and/or Services, and to the extent which it
is lawful to do so, both Intelematics and each
Supplier excludes any warranties which
might otherwise be implied by any State or
Federal legislation in relation to SUNA
Products and/or Services.
7. Please Note
Great care has been taken in preparing this
manual. Constant product development may
mean that some information is not entirely
up-to-date. The information in this document
is subject to change without notice.
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Engine Coolant...................................................442
Engine Oil.............................................................443
Front Axle.............................................................449
Fuel Tank..............................................................446
Grease...................................................................446
Hydraulic Brake System....................................447
Locks......................................................................447
Rear Axle..............................................................449
Transfer Case......................................................448
Washer Reservoir...............................................450
Cargo Nets.....................................................307
Car Wash See: Cleaning the Exterior...............................397
Catalytic Converter
......................................224
On-Board Diagnostics (OBD-II).......................225
Readiness for Inspection and Maintenance
(I/M) Testing.....................................................226
Center Console
............................................205
Changing a Bulb...........................................395
LED Lamps...........................................................395
Changing a Fuse...........................................374 Fuses......................................................................374
Changing a Road Wheel............................429 Dissimilar Spare Wheel and Tire Assembly
Information......................................................430
Location of the Spare Tire and Tools............430
Tire Change Procedure.....................................
431 Changing the 12V Battery..........................390
Battery Management System..........................392
Changing the Engine Air Filter.................382
Changing the Vehicle Wi-Fi Hotspot Name or Password................................................459
Changing the Wiper Blades......................394
Charging a Wireless Device......................204
Checking MyKey System Status
..................81
MyKey Distance......................................................81
Number of Admin Keys.......................................82
Number of MyKeys...............................................82
Checking the Wiper Blades.......................394
Childminder Mirror
........................................123
Child Restraint and Seatbelt Maintenance..................................................54
Child Restraint Positioning
...........................42
Child Safety......................................................24
General Information.............................................24
Child Safety Locks
..........................................44
Left-Hand Side.......................................................44
Right-Hand Side....................................................44
Cleaning Leather Seats..............................403
Cleaning Products.......................................396 Materials...............................................................396
Cleaning the Engine
....................................399
Cleaning the Exterior...................................397 Cleaning the Exterior Lamps...........................397
Cleaning the Exterior Precautions.................397 Exterior Chrome Parts.......................................398
Exterior Plastic Parts..........................................398
Stripes or Graphics............................................398
Underbody...........................................................398
Under Hood.........................................................398
Cleaning the Instrument Panel and Instrument Cluster Lens...........................402
Cleaning the Interior...................................400 Cleaning Black Label or Presidential
Interior..............................................................400
Cleaning the Wheels
...................................403
Cleaning the Windows and Wiper Blades...........................................................399
Clearing All MyKeys........................................81
Climate............................................................499 Accessing Rear Climate Controls..................502
Accessing the Climate Control Menu...........499
Directing the Airflow..........................................499
Rear Climate Control Lock Indicator.............502
Setting the Blower Motor Speed...................
500
Setting the Temperature..................................500
Switching Auto Mode On and Off.................500
Switching Dual Zone Mode On and Off.......500
Switching Maximum Air Conditioning On and Off.......................................................................501
Switching Maximum Defrost On and Off......501
Switching Rear Auto Mode On and Off........502
Switching Recirculated Air On and Off..........501
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