2021 LINCOLN NAUTILUS climate control

CLIMATE CONTROL –
TROUBLESHOOTING
Climate Control – Frequently Asked
Questions
Why is the volume of air to the rear
passenger compartment limited ?
Objects may obstruct the air direction
to the rear passenger compartment.
Make sure objects have not been
placed under the front seats.
Why is the volume of air from the air vents
reduced? The air intake area at the base of the
windshield could be obstructed. Make
sure the air intake area is free from any
snow, ice or leaves.
What are the recommended settings for
heating the interior? Auto mode on and instrument panel and
side air vents fully open. How can I quickly heat the interior?
Select the highest blower motor speed,
highest temperature and direct the air
to the footwell air vents.
What are the recommended settings for
cooling the interior? Auto mode on.
How can I quickly cool the interior? Switch maximum cooling on, switch
recirculated air on and drive with the
windows open until you feel cold air
through the air vents.
How can I reduce the humidity build-up
inside my vehicle? Do not drive with the system off or with
recirculated air on.
How can I defog the side windows? Switch maximum defrost on.
How can I defog or clear the windshield of
thin ice? Switch maximum defrost on. Why do I feel air from the footwell air vents
regardless of the air distribution?
This is normal operation. You may feel
a small amount of air from the footwell
air vents regardless of the air
distribution.
What happens if I switch auto mode on
when the outside temperature and
in-vehicle temperature is high? The system temporarily selects
recirculated air to maximize cooling.
What happens if I switch auto mode on
when the outside temperature is low and
the engine is cold? Air is directed to the windshield and the
outer instrument panel air vents.
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2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Climate Control

WARNING: Do not place anything on
the seat that blocks the heat, for example
a seat cover or a cushion. This could cause
the seat to overheat. Failure to follow this
instruction could result in personal injury.
Do not:
• Place heavy objects on the seat.
• Operate the heated seat if water or any
other liquid spills on the seat. Allow the
seat to dry.
Switching the Heated Seats On and Off
The vehicle must be running to use this
feature. Press the heated seat symbol to cycle
through the various heat settings and off.
The more indicators that display, the warmer
the temperature of the seat.
Note:
The heated seats may remain on after
you remote start your vehicle, based on your
remote start settings. The heated seats may
also turn on when you start your vehicle if
they were on when you switched your
vehicle off.
VENTILATED SEATS
Switching the Ventilated Seats On and
Off
The vehicle must be running to use this
feature. Press this symbol to cycle through the
various ventilation settings and off. More
indicator lights indicate higher fan speeds.
If the engine falls below 350 RPM while the
ventilated seats are on, the feature turns
itself off. You need to reactivate it.
Note:
The ventilated seats may remain on
after you remote start your vehicle, based
on your remote start settings. The ventilated
seats may also turn on when you start your
vehicle if they were on when you switched
your vehicle off.
Automatic Climate Controlled Seats
(If
Equipped)
When you switch the auto setting on, the
climate controlled seats switch between the
heated seats and ventilated seats to match
your climate control setting.
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2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Front SeatsE146322 E224689

STARTING AND STOPPING THE
ENGINE – PRECAUTIONS
WARNING: Extended idling at high
engine speeds can produce very high
temperatures in the engine and exhaust
system, creating the risk of fire or other
damage. WARNING:
Do not park, idle or drive
your vehicle on dry grass or other dry
ground cover. The emission system heats
up the engine compartment and exhaust
system, creating the risk of fire. WARNING:
Do not start the engine
in a closed garage or in other enclosed
areas. Exhaust fumes are toxic. Always
open the garage door before you start the
engine. Failure to follow this instruction
could result in personal injury or death. WARNING:
Do not use starting fluid,
for example ether, in the air intake system.
Such fluid could cause immediate
explosive damage to the engine and
possible personal injury. WARNING: Exhaust leaks may result
in entry of harmful and potentially lethal
fumes into the passenger compartment. If
you smell exhaust fumes inside your
vehicle, have your vehicle inspected
immediately. Do not drive if you smell
exhaust fumes.
The powertrain control system meets all
Canadian interference-causing equipment
standard requirements regulating the
impulse electrical field or radio noise.
If you stop your vehicle and leave the engine
idling for long periods, we recommend that
you do one of the following:
• Open the windows at least
1 in (2.5 cm).
• Set your climate control to outside air. PUSH BUTTON IGNITION SWITCH
Switching the Ignition Off
When the ignition is on or in accessory mode,
press the push button ignition switch once
without your foot on the brake pedal.
Switching the Ignition to Accessory
Mode
When the ignition is off, press the push
button ignition switch once without your foot
on the brake pedal.
All electrical circuits and accessories are
operational and the warning lamps and
indicators illuminate.
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ENGINE BLOCK HEATER (If Equipped)
Engine Block Heater Precautions
WARNING: Failure to follow engine
block heater instructions could result in
property damage or serious personal
injury. WARNING:
Do not use your heater
with ungrounded electrical systems or
two-pronged adapters. There is a risk of
electrical shock. WARNING:
Do not fully close the
hood, or allow it to drop under its own
weight when using the engine block
heater. This could damage the power cable
and may cause an electrical short resulting
in fire, injury and property damage. We recommend that you do the following for
a safe and correct operation:
•
Use a 16-gauge outdoor extension cord
that is product certified by Underwriter’ s
Laboratory (UL) or Canadian Standards
Association (CSA). This extension cord
must be suitable for use outdoors, in cold
temperatures, and be clearly marked
Suitable for Use with Outdoor
Appliances. Do not use an indoor
extension cord outdoors. This could
result in an electric shock or become a
fire hazard.
• Use as short an extension cord as
possible.
• Do not use multiple extension cords.
• Make sure that when in operation, the
extension cord plug and engine block
heater cord plug connections are free
and clear of water. This could cause an
electric shock or fire.
• If the engine block heater cord is under
the hood, do not remove the wiring from
its original location. Do not close the
hood on the extension wiring. •
Park your vehicle in a clean area, clear
of combustible materials.
• Firmly connect the engine block heater
cord and the extension cord.
• Check the extension cord for heat
anywhere when the system has been
operating for approximately 30 minutes.
• Unplug and properly stow the system
before starting and driving your vehicle.
The protective cover seals the terminals
of the engine block heater cord plug
when not in use.
• Check the engine block heater system
for proper operation before winter.
How Does the Engine Block Heater
Work
The engine block heater warms the engine
coolant. This allows the climate control
system to quickly respond. The equipment
includes a heater element installed in the
engine block and a wire harness. You can
connect the system to a grounded 220-240
volt AC electrical source.
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2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Starting and Stopping the Engine

TOWING YOUR VEHICLE
PRECAUTIONS
Use the following guidelines when towing
your vehicle. Failure to follow this instruction
could result in vehicle damage not covered
by the vehicle warranty.
Note:
Make sure you properly secure your
vehicle to the tow vehicle.
Note: If you are unsure of the vehicle ’s
configuration, contact an authorized dealer.
RECREATIONALLY TOWING YOUR
VEHICLE - 2.0L, AWD
You cannot recreational tow your vehicle
with all wheels on the ground because
vehicle or transmission damage could occur.
You must recreational tow your vehicle with
all four wheels off the ground, such as when
using a car-hauling trailer. Otherwise, you
cannot recreational tow your vehicle. RECREATIONALLY TOWING YOUR
VEHICLE - 2.0L, FWD
You cannot recreational tow your vehicle
with all wheels on the ground because
vehicle or transmission damage could occur.
Place the front wheels on a two-wheel tow
dolly. If you are using a tow dolly, follow the
instructions specified by the equipment
provider.
Note:
Release the parking brake before
towing your vehicle. See Manually
Releasing the Electric Parking Brake (page
221
).
RECREATIONALLY TOWING YOUR
VEHICLE - 2.7L
Note: Put your climate control system in
recirculated air mode to prevent exhaust
fumes from entering the vehicle.
See
Climate Control (page 154). Follow these guidelines if you have a need
for recreational towing. An example of
recreational towing would be towing your
vehicle behind a motorhome. We designed
these guidelines to prevent damage to your
transmission.
You can recreational tow your vehicle with
all four wheels on the ground using the
Manual Park Release procedure, or with all
four wheels off the ground using a vehicle
transport trailer. If you are using a vehicle
transport trailer, follow the instructions
specified by the equipment provider.
If you recreational tow your vehicle with all
four wheels on the ground:
•
Only tow your vehicle in the forward
direction.
• Use the manual park release procedure.
See
Manually Releasing the Electric
Parking Brake (page 221). Failure to do
so may result in damage to the
transmission.
• Do not exceed
65 mph (105 km/h).
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Protected Component
Fuse Rating
Fuse Number
Not used.
–
71
Not used.
—
72
Rear heated seats.
20 A
73
Driver seat module.
30 A
74
Windshield wiper motor.
25 A
75
Power liftgate module.
30 A
76
Climate controlled seat module.
30 A
77
Trailer tow.
40 A
78
Blower motor.
40 A
79
Not used.
—
80
110 V inverter.
40 A
81
Not used.
–
82
Not used.
—
83
Starter motor solenoid.
30 A
84
Not used.
—
85
Anti-lock brake system pump.
60 A
87
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2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Fuses

Protected Components
Fuse Rating
Fuse or Relay Number
Lumbar.
Wireless accessory charging.
Subwoofer amplifier.
20 A
4
Not used.
–
5
Security horn relay.
10 A
6
Gearshift module.
10 A
7
Power liftgate module.
5 A
8
Hands free liftgate module.
Embedded modem.
Keypad.
5 A
9
Combined sensing module.
Not used.
–
10
Not used.
–
11
Climate control module.
7.5 A
12
Enhanced central gateway module.
Instrument cluster.
7.5 A
13
Steering column control module.
Not used.
15 A
14
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2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Fuses

If you disconnect or replace the battery and
your vehicle has an automatic transmission,
it must relearn its adaptive strategy. Because
of this, the transmission may shift firmly when
first driven. This is normal operation while
the transmission fully updates its operation
to optimum shift feel.
Remove and Reinstall the Battery
To disconnect or remove the battery, do the
following:
1. Apply the parking brake and switch the
ignition off.
2. Switch all electrical equipment off, for example lights and radio.
3. Wait a minimum of two minutes before disconnecting the battery.
Note: The engine management system has
a power hold function and remains powered
for a period of time after you switch the
ignition off. This is to allow diagnostic and
adaptive tables to be stored. Disconnecting
the battery without waiting can cause
damage not covered by the vehicle
Warranty. 4. Disconnect the negative battery cable
terminal.
5. Disconnect the positive battery cable terminal.
6. Remove the battery securing clamp.
7. Remove the battery.
8. To install, reverse the removal procedure.
Note: Before reconnecting the battery, make
sure the ignition remains switched off.
Note: Make sure the battery cable terminals
are fully tightened.
Note: After cleaning or replacing the battery,
make sure you reinstall the battery cover or
shield.
If you disconnect or replace the vehicle
battery, you must reset the following
features:
• Window bounce-back. See Windows
(page 130).
• Clock Settings.
• Pre-set radio stations.
• Steering Angle Sensor. Note:
To calibrate the steering angle sensor,
drive the vehicle above
30 mph (50 km/h)
for a minimum of 1.2 mi (2 km). Make sure to
drive straight ahead for a minimum of 30
seconds. Several vehicle functions are
disabled and a warning light could appear
until the sensor is calibrated.
Battery Management System
The battery management system monitors
battery conditions and takes actions to
extend battery life. If excessive battery drain
is detected, the system temporarily disables
some of the following features:
• Heated rear window.
• Heated seats.
• Climate control.
• Heated steering wheel.
• Audio unit.
• Navigation system.
A message may appear in the information
display to alert you that battery protection
actions are active.
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2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Maintenance