Lincoln Nautilus (2019 year). Manual — part 15

WARNING: Adaptive cruise control

is not a crash warning or avoidance
system.

The system adjusts your vehicle speed to
maintain the set gap between you and the
vehicle in front of you in the same lane. You
can select four gap settings.

The system uses a radar sensor that projects
a beam directly in front of your vehicle.

E262918

The cruise controls are on the steering
wheel. See Cruise Control (page 83).

Switching Adaptive Cruise Control On

E294678

Press and release the button.

E144529

The indicator, current gap setting
and set speed appear in the
information display.

E164805

Setting the Adaptive Cruise Speed

Drive to the speed you prefer.

Press and release the button.

Take your foot off the accelerator pedal.

The indicator, current gap setting and set
speed appear in the information display.

E164805

A vehicle graphic illuminates if there is a
vehicle detected in front of you.

Note: When adaptive cruise control is active,
the speedometer may vary slightly from the
set speed displayed in the information
display.

Setting the Adaptive Cruise Speed
When Your Vehicle is Stationary

Follow a vehicle to a complete stop.

E265299

Press and release while keeping
the brake pedal fully pressed.

The set speed adjusts to 20 mph (30 km/h).

The indicator, current gap setting and set
speed appear in the information display.

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Following a Vehicle

WARNING: When following a vehicle,

your vehicle does not always decelerate
quickly enough to avoid a crash without
driver intervention. Always apply the
brakes when necessary. Failing to do so
may result in a crash, serious injury or
death.

WARNING: Adaptive cruise control

only warns of vehicles detected by the
radar sensor. In some cases there may be
no warning or a delayed warning. You
should always apply the brakes when
necessary. Failure to do so may result in a
crash, serious injury or death.

When a vehicle ahead of you enters the
same lane or a slower vehicle is ahead in the
same lane, the vehicle speed adjusts to
maintain a preset gap distance. A vehicle
graphic illuminates in the instrument cluster.

Note: The brakes may emit noise when
applied by the system.

Note: When you are following a vehicle and
you switch on a direction indicator, adaptive
cruise control may provide a small temporary
acceleration to help you pass.

Your vehicle maintains a consistent gap from
the vehicle ahead until:
•

The vehicle in front of you accelerates to
a speed above the set speed.

•

The vehicle in front of you moves out of
the lane you are in.

•

You set a new gap distance.

The system applies the brakes to slow your
vehicle to maintain a safe gap distance from
the vehicle in front. The system only applies
limited braking. You can override the system
by applying the brakes.

If the system determines that its maximum
braking level is not sufficient, an audible
warning sounds, a message appears in the
information display and an indicator flashes
when the system continues to brake. Take
immediate action.

Following a Vehicle to a Complete Stop

If your vehicle follows a vehicle to a complete
stop and remains stationary for less than
three seconds, your vehicle accelerates from
a stationary position to follow the vehicle
ahead.

E265299

If your vehicle follows a vehicle to
a complete stop and remains
stationary for more than three

seconds, press and release the button to
follow the vehicle ahead. Or press the
accelerator pedal.

Setting the Gap Distance

You can decrease or increase the distance
between your vehicle and the vehicle in front
by pressing the gap control.

Press and release the button to
cycle through the four gap settings.

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E164805

The selected gap appears in the information
display as shown by the bars in the image.

Note: The gap setting is time dependent and
therefore the distance adjusts with your
vehicle speed.

Note: It is your responsibility to select a gap
appropriate to the driving conditions.

Adaptive Cruise Control Gap Settings

Dynamic

Behavior

Distance Gap

Graphic
Display,

Bars Indic-

ated

Between

Vehicles

Sport.

Closest.

1

Normal.

Close.

2

Normal.

Medium.

3

Comfort.

Far.

4

Each time you switch the system on, it
selects the last chosen gap setting.

Overriding the Set Speed

WARNING: If you override the

system by pressing the accelerator pedal,
it does not automatically apply the brakes
to maintain a gap from any vehicle ahead.

When you press the accelerator pedal, you
override the set speed and gap distance.

E144529

Use the accelerator pedal normally
to intentionally exceed the set
speed limit.

When you override the system, the green
indicator light illuminates and the vehicle
graphic does not appear in the information
display.

The system resumes operation when you
release the accelerator pedal. The vehicle
speed decreases to the set speed, or a lower
speed if following a slower vehicle.

Changing the Set Speed

E265299

Press and release to increase the
set speed in small increments.

Press and release to decrease the
set speed in small increments.

Press and hold either button to change the
set speed in large increments. Release the
button when you reach the speed you prefer.

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The system may apply the brakes to slow
the vehicle to the new set speed. The set
speed displays continuously in the
information display when the system is
active.

Canceling the Set Speed

Press and release the button or tap
the brake pedal.

Note: The system remembers the set speed.

Resuming the Set Speed

E265299

Press and release the button.

Your vehicle speed returns to the previously
set speed and gap setting. The set speed
displays continuously in the information
display when the system is active.

Note: Only use resume if you are aware of
the set speed and intend to return to it.

Automatic Cancellation

Automatic cancellation can also occur when:
•

The tires lose traction.

•

You apply the parking brake.

Park Brake Application

Automatic parking brake application and
cancellation occurs if:
•

You unbuckle the seatbelt and open the
driver door after you stop your vehicle.

•

You hold your vehicle at a stop
continuously for more than three minutes.

Hilly Condition Usage

You should select a lower gear when the
system is active in situations such as
prolonged downhill driving on steep grades,
for example in mountainous areas. The
system needs additional engine braking in
these situations to reduce the load on the
vehicle’s regular brake system to prevent it
from overheating.

Note: An audible alarm sounds and the
system shuts down if it applies brakes for an
extended period of time. This allows the
brakes to cool. The system functions
normally again after the brakes cool.

Switching Adaptive Cruise Control Off

E294678

Press and release the button when
the system is in standby mode or
switch the ignition off.

Note: You erase the set speed when you
switch the system off.

Detection Issues

WARNING: On rare occasions,

detection issues can occur due to the road
infrastructures, for example bridges,
tunnels and safety barriers. In these cases,
the system may brake late or
unexpectedly. At all times, you are
responsible for controlling your vehicle,
supervising the system and intervening, if
required.

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WARNING: If the system

malfunctions, have your vehicle checked
as soon as possible.

The radar sensor has a limited field of view.
It may not detect vehicles at all or detect a
vehicle later than expected in some
situations. The lead vehicle graphic does not
illuminate if the system does not detect a
vehicle in front of you.

E71621

Detection issues can occur:

When driving on a different line
than the vehicle in front.

A

With vehicles that edge into your
lane. The system can only detect
these vehicles once they move
fully into your lane.

B

There may be issues with the
detection of vehicles in front when
driving into and coming out of a
bend or curve in the road.

C

In these cases, the system may brake late or
unexpectedly. You should stay alert and take
action when necessary.

If something hits the front end of your vehicle
or damage occurs, the radar-sensing zone
may change. This could cause missed or
false vehicle detection.

Optimal system performance requires a clear
view of the road by the windshield-mounted
camera.

Optimal performance may not occur if:

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•

The camera is blocked.

•

There is poor visibility or lighting
conditions.

•

There are bad weather conditions.

System Not Available

Conditions that can cause the system to
deactivate or prevent the system from
activating when requested include:
•

A blocked sensor.

•

High brake temperature.

•

A failure in the system or a related
system.

Blocked Sensor

WARNING: The system may not

operate properly if the sensor is blocked.
Keep the windshield free from obstruction.

E243054

The camera is mounted behind the interior
mirror.

E244279

The sensor is in the lower grille.

Note: You cannot see the sensor. It is behind
a fascia panel.

A message displays if something obstructs
the camera or the sensor. The system cannot
detect a vehicle ahead and does not function
when something blocks the sensor.

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Possible Causes and Actions for This Message Displaying:

Action

Cause

Clean the grille surface in front of the radar or remove the object
causing the obstruction.

The surface of the radar is dirty or obstructed.

Wait a short time. It may take several minutes for the radar to detect
that it is free from obstruction.

The surface of the radar is clean but the message remains in the
display.

Do not use the system in these conditions because it may not detect
any vehicles ahead.

Heavy rain or snow is interfering with the radar signals.

Do not use the system in these conditions because it may not detect
any vehicles ahead.

Water, snow or ice on the surface of the road may interfere with the
radar signals.

Wait a short time or switch to normal cruise control.

You are in a desert or remote area with no other vehicles and no
roadside objects.

Contact an authorized dealer to have the radar checked for proper
coverage and operation.

Radar is out of alignment due to a front-end impact.

Clean the outside of the windshield in front of the camera.

The windshield in front of the camera is dirty or obstructed.

Wait a short time. It may take several minutes for the camera to detect
that it is free from obstruction.

The windshield in front of the camera is clean, but the message
remains in the display.

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Keep the front of your vehicle free of dirt,
metal badges or objects. Vehicle front
protectors and aftermarket lights may also
block the sensor.

Due to the nature of radar technology, it is
possible to get a blockage warning with no
actual block. This happens, for example,
when driving in sparse rural or desert
environments. A false blocked condition
either self clears, or clears after you restart
your vehicle.

Switching to Normal Cruise Control

WARNING: Normal cruise control will

not brake when your vehicle is
approaching slower vehicles. Always be
aware of which mode you have selected
and apply the brakes when necessary.

You can change from adaptive cruise control
to normal cruise control through the
information display.

E71340

The cruise control indicator light
replaces the adaptive cruise
control indicator light if you select

normal cruise control. The gap setting does
not display, and the system does not respond
to lead vehicles. Automatic braking remains
active to maintain set speed.

Using Lane Centering

WARNING: You are responsible for

controlling your vehicle at all times. The
system is designed to be an aid and does
not relieve you of your responsibility to
drive with due care and attention. Failure
to follow this instruction could result in the
loss of control of your vehicle, personal
injury or death.

WARNING: Do not use the adaptive

cruise control when entering or leaving a
highway, on roads with intersections or
roundabouts or non-vehicular traffic or
roads that are winding, slippery, unpaved,
or steep slopes.

WARNING: Do not use the system

in poor visibility, for example fog, heavy
rain, spray or snow.

WARNING: Large contrasts in outside

lighting can limit sensor performance.

WARNING: The sensor may

incorrectly track lane markings as other
structures or objects. This can result in a
false or missed warning.

WARNING: Do not use the system

when towing a trailer. Failure to follow this
instruction could result in the loss of
control of your vehicle, personal injury or
death.

The system is designed to help keep your
vehicle in the center of the lane by applying
continuous assistance steering torque input
toward the lane center on highways.

Note: The assistance steering torque is
limited and may not be sufficient for all
driving situations.

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Note: In exceptional conditions, the system
may deviate from the center line.

The system only operates when all of the
following occur:
•

You have adaptive cruise control with
stop-and-go on.

•

The system detects at least one lane
marking.

•

Your hands are on the steering wheel at
all times.

Note: The system may not function if the
front camera or sensor is blocked or not
available.

Switching Lane Centering On and Off

E262175

Press and release the button.

The indicator appears in the information
display. When the system is on, the color of
the indicator changes to indicate the system
status.

Gray indicates the system is on but inactive.

Green indicates the system is active and
applying assistance steering torque input to
keep your vehicle in the center of the lane.

The system activates when it detects valid
lane markings. If it does not detect valid lane
markings, the system stays inactive until valid
markings are available.

The system may not correctly operate in any
of the following conditions:
•

Your vehicle is not centered in the lane.

•

The lane is too narrow or wide.

•

The system does not detect at least one
lane marking or when lanes merge or
split.

•

You switch the direction indicator on.

•

Limited steering torque input is applied.

•

Areas under construction or new
infrastructure.

•

When modifications to the steering
system have been made.

•

When using a spare tire.

When the system is active and detects no
steering activity for a certain period of time,
the system alerts you to put your hands on
the steering wheel. If you do not react to the
warnings the system cancels and slows your
vehicle down to idle speeds while
maintaining steering control.

The system also alerts you if your vehicle
crosses lane markings without detected
steering activity.

Note: The system may detect a light grip or
touch on the steering wheel as hands-off
driving.

You can override the system at any time by
steering your vehicle.

Automatic Cancellation

When an external condition cancels the
system, for example, no lane markings
available, a tone sounds and a message
appears in the information display.

E265299

If your vehicle starts to slow down,
you must contribute to the steering
control and press and release the

button to regain full system performance.

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Automatic cancellation can also occur if:
•

The lane becomes too wide or too
narrow.

•

The system cannot detect valid lane
markings.

•

Lane markings are crossed.

Note: The system disables until the next key
cycle if your vehicle slows down due to driver
inactivity twice within a key cycle.

Blocked Sensor

WARNING: The system may not

operate properly if the sensor is blocked.
Keep the windshield free from obstruction.

E243054

The camera is mounted behind the interior
mirror.

E244279

The sensor is in the lower grille.

Note: You cannot see the sensor. It is behind
a fascia panel.

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DRIVER ALERT

(IF EQUIPPED)

WARNING: You are responsible for

controlling your vehicle at all times. The
system is designed to be an aid and does
not relieve you of your responsibility to
drive with due care and attention. Failure
to follow this instruction could result in the
loss of control of your vehicle, personal
injury or death.

WARNING: The system may not

function if the sensor is blocked.

WARNING: Take regular rest breaks

if you feel tired. Do not wait for the system
to warn you.

WARNING: Certain driving styles may

result in the system warning you even if
you are not feeling tired.

WARNING: In cold and severe

weather conditions the system may not
function. Rain, snow and spray can all limit
sensor performance.

WARNING: The system will not

operate if the sensor cannot track the road
lane markings.

WARNING: If damage occurs in the

immediate area surrounding the sensor,
have your vehicle checked as soon as
possible.

WARNING: The system may not

correctly operate if your vehicle is fitted
with a suspension kit not approved by us.

Note: Keep the windshield free from
obstructions. For example, bird droppings,
insects and snow or ice.

Note: If the camera is blocked or if the
windshield is damaged, the system may not
function.

E249505

The system automatically monitors your
driving behavior using various inputs
including the front camera sensor.

If the system detects that your driving
alertness is reduced below a certain
threshold, the system will alert you using a
tone and a message in the information
display.

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Using Driver Alert

Switching the system on and off

You may switch the system on or off through
the information display. See General
Information (page 112). When activated, the
system will monitor your alertness level
based upon your driving behavior in relation
to the lane markings and other factors.

System Warnings

Note: The system does not issue warnings
below approximately 40 mph (64 km/h).

The warning system is in two stages. At first
the system issues a temporary warning that
you need to take a rest. This message will
only appear for a short time. If the system
detects further reduction in driving alertness,
another warning may be issued which will
remain in the information display for a longer
time. Press OK on the steering wheel control
to clear the warning

System Display

When active the system will run automatically
in the background and only issue a warning
if required.

Note: If the camera sensor cannot track the
road lane markings or if your vehicle speed
drops below approximately 40 mph
(64 km/h), the system does not issue
warnings.

Resetting the System

You can reset the system by either:

•

Switching the ignition off and on.

•

Stopping the vehicle and then opening
and closing the driver’s door.

LANE KEEPING SYSTEM

(IF EQUIPPED)

WARNING: You are responsible for

controlling your vehicle at all times. The
system is designed to be an aid and does
not relieve you of your responsibility to
drive with due care and attention. Failure
to follow this instruction could result in the
loss of control of your vehicle, personal
injury or death.

WARNING: Always drive with due

care and attention when using and
operating the controls and features on your
vehicle.

WARNING: In cold and severe

weather conditions the system may not
function. Rain, snow and spray can all limit
sensor performance.

WARNING: The system will not

operate if the sensor cannot track the road
lane markings.

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WARNING: The sensor may

incorrectly track lane markings as other
structures or objects. This can result in a
false or missed warning.

WARNING: The system may not

operate properly if the sensor is blocked.
Keep the windshield free from obstruction.

WARNING: If damage occurs in the

immediate area surrounding the sensor,
have your vehicle checked as soon as
possible.

Note: The system works above 40 mph
(64 km/h).

Note: The system works as long as the
camera can detect one lane marking.

Note: When you select aid or alert and aid
mode and the system detects no steering
activity for a short period, the system alerts
you to put your hands on the steering wheel.
The system may detect a light grip or touch
on the steering wheel as hands off driving.

Note: The system may not function with a
blocked camera, or a damaged or dirty
windshield.

E249505

When you switch the system on and it
detects an unintentional drift out of your lane
is likely to occur, the system notifies or
assists you to stay in your lane through the
steering system and information display. In
Alert mode, the system provides a warning
by vibrating the steering wheel. In Aid mode,
the system provides steering assistance by
gently counter steering your vehicle back
into the lane.

When the system is functioning in the
combined Alert and Aid mode, the system
first provides steering assistance by gently
counter steering your vehicle back into the
lane, followed by a warning that vibrates the
steering wheel if the vehicle is still out of the
lane markings.

Switching the System On and Off

Note: The system stores the on or off setting
until you manually change it, unless it
detects a MyKey. If the system detects a
MyKey, it defaults to on and the mode sets
to alert.

E132099

Press the button on the direction indicator
stalk to switch the system on or off.

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System Settings

The system has two adjustable settings,
Mode and Intensity. To view or adjust the
settings, See Settings (page 481). The system
stores the last known selection for each of
these settings. You do not need to readjust
your settings each time you switch the
system on.

Mode: This setting allows you to select which
of the system features you can enable.

E165515

Alert only – Provides a steering wheel
vibration when the system detects an
unintended lane departure.

E165516

Aid only – Provides steering assistance
toward the lane center when the system
detects an unintended lane departure.

E165517

Alert

A

Aid

B

Alert + Aid – Provides steering assistance
toward the lane center.

If your vehicle continues drifting out of the
lane, the system provides a steering wheel
vibration.

Note: The alert and aid diagrams illustrate
general zone coverage. They do not provide
exact zone parameters.

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Intensity: This setting affects the intensity of
the steering wheel vibration used for the alert
and alert + aid modes. This setting does not
affect the aid mode.

•

Low.

•

Normal.

•

High.

System Display

E272890

If you switch the system on in alert mode, a
graphic with lane markings appears in the
information display.

If you switch the system on in aid or alert and
aid mode, walls appear instead of lane
markings.

If you have adaptive cruise control enabled
and you are following a vehicle, additional
graphics appear in the information display.

When you switch the system off, the lane
marking graphics do not display.

When the system is on, the color of the lane
markings change to indicate the system
status.

Gray: Indicates that the system is temporarily
unable to provide a warning or intervention
on the indicated side. This may be because:

•

Your vehicle is under the activation
speed.

•

The direction indicator is active.

•

Your vehicle is in a dynamic maneuver.

•

The road has no or poor lane markings
in the camera field-of-view.

•

The camera becomes obscured or
unable to detect the lane markings due
to environmental, traffic or vehicle
conditions. For example, significant sun
angles, shadows, snow, heavy rain or fog,
following a large vehicle that is blocking
or shadowing the lane, or poor headlamp
illumination.

See Troubleshooting for additional
information.

Green: Indicates that the system is available
or ready to provide a warning or intervention,
on the indicated side.

Red: Indicates that the system is providing
or has just provided a lane keeping alert
warning.

The system can become temporarily
suppressed at any time by the following:

•

Quick braking.

•

Fast acceleration.

•

Using the direction indicator.

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•

Evasive steering maneuver.

•

Driving too close to the lane markings.

Troubleshooting

Why is the feature not available (line markings are gray) when I can see the lane markings on the road?

Your vehicle speed is outside the operational range of the feature.

The sun is shining directly into the camera lens.

A quick, intentional lane change has occurred.

Your vehicle stays too close to the lane markings.

Driving at high speeds in curves.

The last alert warning or aid intervention occurred a short time ago.

Ambiguous lane markings, for example, in construction zones.

Rapid transition from light to dark, or from dark to light.

Sudden offset in lane markings.

ABS or AdvanceTrac™ is active.

There is a camera blockage due to dirt, grime, fog, frost or water on the windshield.

You are driving too close to the vehicle in front of you.

Transitioning between no lane markings to lane markings or vice versa.

There is standing water on the road.

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