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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 oil change reminder after engine oil and filter changes.
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2022 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202109, First-Printing Scheduled Maintenance
Page 539 of 646
Brake Fluid Maintenance
1
Change the brake fluid. 2
Every Three Years
1 Perform this maintenance item every three 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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2022 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202109, First-Printing Scheduled Maintenance
Page 540 of 646

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 5,000 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 10 years or
200,000 mi (320,000 km), then every 5 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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2022 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202109, First-Printing Scheduled Maintenance
Page 623 of 646

Autolock............................................................88
Autolock Requirements.......................................88
What Is Autolock...................................................88
Automatically Releasing the Electric Parking Brake.............................................237
Automatic Crash Shutoff............................394
Automatic Crash Shutoff Precautions...........394
Re-Enabling Your Vehicle.................................394
What Is Automatic Crash Shutoff...................394
Automatic Emergency Braking
.................326
Switching Automatic Emergency Braking On
and Off..............................................................326
What Is Automatic Emergency Braking
........326
Automatic Engine Stop...............................203 How Does Automatic Engine Stop
Work..................................................................204
Overriding Automatic Engine Stop................204
Switching Automatic Engine Stop On and Off......................................................................204
What Is Automatic Engine Stop......................203
Automatic High Beam Control
...................123
Automatic High Beam Control
Indicators..........................................................125
Automatic High Beam Control Limitations........................................................125
Automatic High Beam Control Precautions.......................................................124 Automatic High Beam Control
Requirements...................................................124
How Does Automatic High Beam Control Work...................................................................123
Overriding Automatic High Beam Control...............................................................125
Switching Automatic High Beam Control On and Off...............................................................125
Automatic High Beam Control – Troubleshooting..........................................126
Automatic High Beam Control – Information Messages..........................................................126
Automatic Locking Mode
..............................54
Disengaging Automatic Locking Mode..........55
Engaging Automatic Locking Mode................
55
What Is Automatic Locking Mode.....................54
When to Use Automatic Locking Mode..........54
Automatic Return to Park (P)......................221 Automatic Return to Park (P)
Limitations.......................................................222
How Does Automatic Return to Park (P) Work..................................................................222
What Is Automatic Return to Park (P).............221
Automatic Transmission Audible Warnings......................................................222
Automatic Transmission
..............................219
Automatic Return to Park (P)............................221
Automatic Transmission Positions..................219 Manually Shifting Gears...................................
220
Temporary Neutral Mode..................................221
Automatic Transmission Position Indicators.....................................................220
Automatic Transmission Positions............219 Drive (D).................................................................219
Neutral (N).............................................................219
Park (P)...................................................................219
Reverse (R)............................................................219
Automatic Transmission Precautions.......219
Auto Mode
......................................................160
Auto Mode Indicators.........................................160
Switching Auto Mode On and Off...................160
Switching Dual Mode On and Off....................161
Auto-Start-Stop
.............................................207
Auto-Start-Stop – Troubleshooting...............208
Auto-Start-Stop Indicators
..........................207
Auto-Start-Stop Precautions......................207
Auto-Start-Stop – Troubleshooting.........208 Auto-Start-Stop – Frequently Asked
Questions........................................................209
Auto-Start-Stop – Information Messages........................................................208
Autounlock.......................................................88 Autounlock Requirements..................................88
Switching Autounlock On and Off....................88
What Is Autounlock..............................................88
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