2021 LINCOLN NAUTILUS air conditioning

3. If this is not possible, wait for a short
period of time for the engine to cool.
4. Check the coolant level. If the coolant level is at or below the minimum mark,
add prediluted coolant immediately.
5. When the engine temperature cools, you
can re-start the engine. Have your vehicle
checked as soon as possible to minimize
engine damage.
Note: Driving your vehicle without repair
increases the chance of engine damage.
Engine Coolant Temperature
Management (If Equipped) WARNING:
To reduce the risk of
crash and injury, be prepared that the
vehicle speed may reduce and the vehicle
may not be able to accelerate with full
power until the coolant temperature
reduces. If you tow a trailer with your vehicle, the
engine may temporarily reach a higher
temperature during severe operating
conditions, for example ascending a long or
steep grade in high ambient temperatures.
At this time, you may notice the coolant
temperature gauge moves toward the red
zone and a message may appear in the
information display.
You may notice a reduction in vehicle speed
caused by reduced engine power in order
to manage the engine coolant temperature.
Your vehicle may enter this mode if certain
high-temperature and high-load conditions
take place. The amount of speed reduction
depends on vehicle loading, grade and
ambient temperature. If this occurs, there is
no need to stop your vehicle. You can
continue to drive.
The air conditioning may automatically turn
on and off during severe operating
conditions to protect the engine from
overheating. When the coolant temperature
decreases to the normal operating
temperature, the air conditioning turns on. If the coolant temperature gauge moves fully
into the red zone, or if the coolant
temperature warning or service engine soon
messages appear in your information display,
do the following:
1.
Stop your vehicle as soon as it is safe to
do so. Fully apply the parking brake, shift
into park (P) or neutral (N).
2. Leave the engine running until the coolant temperature gauge needle
returns to the normal position. If the
temperature does not drop after several
minutes, follow the remaining steps.
3. Switch the engine off and wait for it to cool. Check the coolant level.
4. If the coolant level is at or below the minimum mark, add prediluted coolant
immediately.
5. If the coolant level is normal, restart the engine and continue.
343
2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Maintenance

AIR CONDITIONING SYSTEM
CAPACITY AND SPECIFICATION -
2.0L
WARNING: The air conditioning
refrigerant system contains refrigerant under high pressure. Only qualified
personnel should service the air
conditioning refrigerant system. Opening
the air conditioning refrigerant system can
cause personal injury.
Use refrigerant and oil that meets the defined
specifications. If you do not use refrigerant and oil that
meets the defined specifications, it could
result in:
•
Component damage that your vehicle
warranty does not cover.
• Reduced vehicle performance.
Capacities Refrigerant Oil
Refrigerant
Variant
3.2 fl oz (95 ml)
20.8 oz (0.59 kg)
All.
410
2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Capacities and Specifications

AIR CONDITIONING SYSTEM
CAPACITY AND SPECIFICATION -
2.7L
WARNING: The air conditioning
refrigerant system contains refrigerant under high pressure. Only qualified
personnel should service the air
conditioning refrigerant system. Opening
the air conditioning refrigerant system can
cause personal injury.
Use refrigerant and oil that meets the defined
specifications. If you do not use refrigerant and oil that
meets the defined specifications, it could
result in:
•
Component damage that your vehicle
warranty does not cover.
• Reduced vehicle performance.
Capacities Refrigerant Oil
Refrigerant
Variant
3.2 fl oz (95 ml)
20.8 oz (0.59 kg)
All.
412
2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Capacities and Specifications

Check Every Six Months
The seatbelts and seat latches for wear and function.
Safety warning lamps, brake, ABS, airbag and seatbelt for operation.
The washer spray and wiper operation. Clean or replace blades as necessa\
ry.
Multi-Point Inspection
It is important to have the systems on your
vehicle regularly checked. This can help
identify potential issues and prevent major
problems. We recommend having the
following multi-point inspection performed
at every scheduled maintenance interval to
help make sure your vehicle keeps running
great. Multi-Point Inspection
Hazard warning system operation
Accessory drive belt or belts
Horn operation
Battery performance
Radiator, cooler, heater and air conditioning hoses
Engine air filter
Suspension components for leaks or damage
Exhaust system
462
2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Scheduled Maintenance

Speed Compensated Volume.........................424
Tone Settings.......................................................424
Adjusting the Steering Wheel - Vehicles With: Manual Adjustable Steering
Column...........................................................112
Adjusting the Steering Wheel - Vehicles With: Power Adjustable Steering
Column...........................................................112
Adjusting the Volume..................................423
Aid Mode........................................................267
How Does Aid Mode Work..............................267
What Is Aid Mode...............................................267
Airbag Precautions
.........................................66
Airbags..............................................................63 Front Passenger Sensing System.....................
67
Air Conditioning See: Climate Control..........................................154
Air Conditioning System Capacity and Specification - 2.0L....................................410
Air Conditioning System Capacity and Specification - 2.7L
.....................................412
Air Filter See: Changing the Engine Air Filter..............344
Alert and Aid Mode.....................................268 How Does Alert and Aid Mode Work............268
What Is Alert and Aid Mode............................268
Alert Mode
.....................................................267
How Does Alert Mode Work............................267 What Is Alert Mode............................................267
All-Wheel Drive
..............................................214
All-Wheel Drive Driving Hints...........................214
All-Wheel Drive – Troubleshooting.................217
All-Wheel Drive Driving Hints
.....................214
Driving In Sand.....................................................215
Driving on Hilly or Sloping Terrain..................216
Driving on Snow and Ice...................................216
Driving Through Mud and Water.....................215
Emergency Maneuvers......................................214
All-Wheel Drive Limitations
.........................214
All-Wheel Drive Precautions.......................214
All-Wheel Drive – Troubleshooting...........217 All-Wheel Drive – Information
Messages..........................................................217
AM/FM Radio
.................................................425
AM/FM Radio Limitations.................................425
Selecting a Radio Station.................................425
Ambient Lighting...........................................128 Adjusting Ambient Lighting..............................128
Switching Ambient Lighting On and Off........128
Anti-Lock Braking System
...........................218
Anti-Lock Braking System Limitations...........218
Anti-Theft Alarm System.............................108 How Does the Anti-Theft Alarm System
Work...................................................................108
What Are the Inclination Sensors...................108
What Are the Interior Sensors.........................
108 What Is the Anti-Theft Alarm System.............108
What Is the Perimeter Alarm............................108
Anti-Theft Alarm System Settings.............109 Setting the Alarm Security Level.....................109
Switching Ask on Exit On and Off...................109
What are the Alarm Security Levels...............109
What Is Ask on Exit.............................................109
Appendices....................................................548
Applying the Electric Parking Brake
.........221
Applying the Electric Parking Brake in an Emergency...................................................221
App Precautions...........................................444
App Requirements.......................................444
Apps
.................................................................444
Audio System................................................423
AM/FM Radio.......................................................425
Digital Radio........................................................426
Satellite Radio......................................................427
Audio System Precautions.........................423
Auto-Dimming Exterior Mirror
....................134
What Is the Auto-Dimming Exterior
Mirror..................................................................134
Auto-Dimming Interior Mirror.....................132 Auto-Dimming Interior Mirror
Limitations.........................................................132
What Is the Auto-Dimming Interior Mirror..................................................................132
Auto Hold
.......................................................226
554
2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Index

What is the Side Parking Aid...........................237
Sitting in the Correct Position....................159
Sounding the Panic Alarm............................76
Special Operating Conditions Scheduled Maintenance...............................................467
Exceptions............................................................470
Speed Control See: Cruise Control.............................................251
Stability Control Indicator...........................230
Stability Control............................................229 Stability Control – Troubleshooting................
231
Stability Control – Troubleshooting..........231 Stability Control – Information
Messages..........................................................231
Starting and Stopping the Engine – Precautions..................................................186
Starting and Stopping the Engine.............186 Automatic Engine Stop......................................189
Engine Block Heater..........................................188
Starting and Stopping the Engine –
Troubleshooting...............................................191
Starting the Engine..............................................187
Stopping the Engine...........................................189
Starting and Stopping the Engine – Troubleshooting...........................................191
Starting and Stopping the Engine – Frequently Asked Questions............................................193 Starting and Stopping the Engine –
Information Messages...................................192
Starting and Stopping the Engine – Warning Lamps.................................................................191
Starting the Engine.......................................187 Restarting the Engine After Stopping it.........187
Starting a Gasoline Engine................................187
Status Bar
.......................................................432
Steering..........................................................232 Electric Power Steering....................................232
Steering – Troubleshooting.............................233
Steering – Troubleshooting.......................233 Steering – Information Messages..................
233
Steering Wheel
................................................27
Stopping the Engine.....................................194 Stopping the Engine When Your Vehicle is
Moving...............................................................189
Stopping the Engine When Your Vehicle is Stationary..........................................................189
Stopping the Liftgate Movement
..............105
Storage.............................................................184 Cup Holders..........................................................184
Glasses Holder.....................................................185
Under Floor Storage...........................................184
Storing Your Vehicle
.....................................361
Sunroof See: Moonroof.....................................................135 Switching Active Park Assist On and
Off..................................................................246
Cancelling Active Park Assist..........................246
Switching Adaptive Cruise Control On and Off..................................................................256
Switching Adaptive Cruise Control Off........
256
Switching Adaptive Cruise Control On.........256
Switching Air Conditioning On and Off...................................................................154
Switching All of the Interior Lamps On and Off...................................................................127
Switching Android Auto On and Off........445 Disabling Android Auto.....................................445
Enabling Android Auto with USB...................445
Enabling Android Auto with Wireless...........445
Re-Enabling Android Auto...............................446
Switching Apple CarPlay On and Off......445 Disabling Apple CarPlay...................................445
Enabling Apple CarPlay with USB ................445
Enabling Apple CarPlay with Wireless..........445
Re-Enabling Apple CarPlay..............................445
Switching Auto Hold On and Off.............226
Switching Auto-Start-Stop On and Off...................................................................194
Switching Blind Spot Information System On and Off...................................................274
Switching Climate Control On and Off...................................................................154
571
2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Index