2020 Hyundai Sonata Owner's Manual

06
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LKA Operation
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To activate/deactivate LKA system:
With the ignition switch in the ON
position, press LKA system button
located on the instrument panel on the
left hand side of the steering wheel.
The
indicator in the cluster
display will initially illuminate white. This
indicates LKA system is in the READY but
NOT ENABLED state.
Note that the vehicle speed
must be at least approximately
40 mph (64 km/h) to ENABLE
LKA system. The indicator in the
cluster display will illuminate
green.
- White: Sensor does not detect lane markers or vehicle speed is under 40
mph (64 km/h).
- Green: Sensor detects lane markers and the system is able to control
vehicle steering.
Information
If the indicator (white) is activated from
the previous ignition cycle, the system will
turn ON without any additional control.
If you press the LKA button again, the
indicator on the cluster goes off.
LKA System Function Change
The driver can change LKA to
Lane Departure Warning or Lane
Keeping Assist from the LCD display
or infotainment system display(if
equipped). Go to the ‘User Settings →
Driver Assistance → Lane Safety → Lane
Keeping Assist/Lane Departure Warning/
Off'. The system is automatically set to
Lane Keeping Assist if a function is not
changed.
Lane Keeping Assist
The LKA mode guides the driver to help
keep the vehicle within the lanes. It
rarely controls the steering wheel, when
the vehicle drives well inside the lanes.
However, it starts to control the steering
wheel, when the vehicle is about to
deviate out of the lanes.
Lane Departure Warning
LDW alerts the driver with a visual
warning and a warning alarm when the
system detects the vehicle departing
the lane. The steering wheel will not be
controlled.
LKA system operation
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To see LKA screen on the LCD display in
the cluster, select Driving Assist mode
(
). For more information, refer to “LCD
Display Modes” section in chapter 4.

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Lane marker Lane marker undetectedundetectedLane marker Lane marker detecteddetected
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• If vehicle speed is over 40 mph (64 km/h) and the system detects lane
markers, the color changes from gray
to white.
• If your vehicle speed exceeds 40 mph (64 km/h) and LKA system button is
ON, the system is enabled. If your
vehicle departs from the projected
lane in front of you, LKA system
operates as follows:
Left lane departure Left lane departure warningwarningRight lane departure Right lane departure warningwarning
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1. A visual warning appears on the cluster LCD display. Either the left
lane marker or the right lane marker
in the cluster LCD display will blink
depending on which direction the
vehicle is veering. 2. LKA system will help control the
vehicle’s steering to prevent the
vehicle from crossing the lane maker
in below conditions.
- Vehicle speed is over 40 mph (64 km/h)
- The system detects both lane markers
- When driving, the vehicle is located between both lanes normally.
- The steering wheel is not turned suddenly.
When lanes are detected and all the
conditions to activate LKA system are
satisfied, LKA system indicator light
(
) will change from white to green.
This indicates that LKA system is in the
ENABLED state and the steering wheel
will be controlled.

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Keep hands on steering wheel
If the driver takes their hands off the
s
teering wheel for several seconds while
LKA system is activated, the system will
warn the driver.
Information
If the steering wheel is held very lightly
the message may still appear because LKA
system may not recognize that the driver
has their hands on the wheel.
WARNING
The warning message may appear
late according to road conditions.
Therefore, always have your hands on
the steering wheel while driving.
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Driver’s hands not detected.
LKA system is disabled temporarily
If the driver still does not have their
hands on the s
teering wheel after the
message “Keep hands on steering
wheel”, the system will not control the
steering wheel and warn the driver
only when the driver crosses the lane
markers.
However, if the driver has their hands on
the steering wheel again, the system will
start controlling the steering wheel.
WARNING
• LKA system is a supplemental system
only. It is the responsibility of the
driver to safely steer the vehicle and
to maintain it in its lane.
• Turn off LKA system and drive
without using the system in the
following situations:
- In bad weather
- In bad road conditions
- When the steering wheel needs
to be controlled by the driver
frequently
Information
Even though the steering is assisted by the
system, the driver can still steer to control
the steering wheel.
The steering wheel may feel heavier when
the steering wheel is assisted by the system
than when it is not.

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Warning Light and Message
Type AType AType BType B
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Check LKA (Lane Keep Assist) system
If there is a problem with the system a
message will appear f
or a few seconds.
If the problem continues LKA system
failure indicator will illuminate.
LKA system indicator
The LKA system indicator
(yellow) will illuminate if LKA
system is not working properly.
Have the vehicle inspected by an
authorized HYUNDAI dealer.
When there is a problem with the system
do one of the following:
• Turn the system on after turning the v
ehicle off and on again.
• Check if the ignition switch is in the ON position.
• Check if the system is affected by the weather. (ex: fog, heavy rain, etc.)
• Check if there is foreign matter on the camera lens.
If the problem is not solved, have the
vehicle inspected by an authorized
HYUNDAI dealer. LKA system will not be in the ENABLED
state and the steering wheel will not be
assisted when:
• The turn signal is turned on before
changing a lane. If y
ou change
lanes without the turn signal on, the
steering wheel might be controlled.
• The vehicle is not driven in the middle of the lane when the system is turned
on or right after changing a lane.
• ESC (Electronic Stability Control) or VSM (Vehicle Stability Management)
is activated.
• The vehicle is driven on a sharp curve.
• Vehicle speed is below 40 mph (64 km/h) and over 110 mph (177 km/h).
• The vehicle makes sharp lane changes.
• The vehicle brakes suddenly.
• Only one lane marker is detected.
• The lane (or road width) is very wide or narrow.
• There are more than two lane markers on the road. (e.g. construction area)
• The vehicle is driven on a steep incline.
• The steering wheel is turned suddenly.
• The system may not operate for 15 seconds after the engine is started or
the camera is initialized.

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Limitations of the System
LKA system may operate prematurely
even if the vehicle does not depart from
the intended lane, OR, LKA system may
not assist your steering or warn you if the
vehicle leaves the intended lane under
the following circumstances:
When the lane and road conditions are
poor
• It is difficult to distinguish the lane marking from the road surface or the
lane marking is faded or not clearly
marked.
• It is difficult to distinguish the color of the lane marker from the road.
• There are markings on the road surface that look like a lane marker
that is inadvertently being detected
by the camera.
• The lane marker is indistinct or damaged.
• The lane marker is merged or divided (e.g. tollgate).
• The lane number increases or decreases or the lane marker are
crossing complicatedly.
• There are more than two lane markers on the road in front of you. • The lane marker is very thick or thin.
• The lane is very wide or narrow.
• The lane ahead is not visible due
to rain, snow, water on the road,
damaged or stained road surface, or
other factors.
• The shadow is on the lane marker by a median strip, trees, guardrail, noise
barriers, etc.
• The lane markers are complicated or a structure substitutes for the lines such
as a construction area.
• There are crosswalk signs or other symbols on the road.
• The lane marker in a tunnel is stained with oil, etc.
• The lane suddenly disappears such as at the intersection.

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When external condition is intervened
• The brightness outside changes suddenly such as when entering or
exiting a tunnel, or when passing
under a bridge.
• The brightness outside is too low such as when the headlamps are not on at
night or the vehicle is going through
a tunnel.
• There is a boundary structure in the roadway such as a concrete barrier,
guardrail and reflector post that is
inadvertently being detected by the
camera.
• When light coming from a street light or an oncoming vehicle is reflected on
a wet road surface such as a puddle in
the road.
• The field of view in front is obstructed by sun glare.
• There is not enough distance between you and the vehicle in front to be
able to detect the lane marker or the
vehicle ahead is driving on the lane
marke.
• Driving on a steep grade, over a hill, or when driving on a curved road.
• The adverse road conditions cause excessive vehicle vibrations while
driving.
• The surrounding of the inside rear view mirror temperature is high due to
direct sunlight, etc.
• Road surface is not even. When front visibility is poor
• The windshield or the camera lens is
blocked with dirt or debris.
• The windshield glass is fogged up; a clear view of the road is obstructed.
• Placing objects on the dashboard, etc.
• The sensor cannot detect the lane marker because of fog, heavy rain or
snow.

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System Description
Blind-Spot Collision Warning
Blind-Spot Collision Warning system
uses rear corner radar sensors to monitor
and warn the driver of an approaching
vehicle in the driver’s blind spot area.
(1) Blind-spot vehicle warning
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BCW system detects and warns vehicles
in blind-spot.
The blind spot detection range varies
relative to vehicle speed.
Note that if your vehicle is traveling
much faster than the vehicles around
you, the warning will not occur.(2) Fast approach vehicle warning
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BCW system will alert you when a vehicle
is detected approaching in an adjacent
lane at a high rate of speed. If the driver
activates the turn signal when the system
detects an oncoming vehicle, the system
sounds an audible alert.
Blind-Spot Collision-Avoidance
Assist
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Blind-Spot Collision-Avoidance Assist
system detects the front lane through the
front view camera installed on the upper
front windshield and detects the side/
rear areas through rear corner radars.
BLIND-SPOT COLLISION WARNING (BCW) / BLIND-SPOT
COLLISION-AVOIDANCE ASSIST (BCA) (IF EQUIPPED)

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Blind-Spot Collision-Avoidance Assist
system may activate the Electronic
Stability Control (ESC) in accordance
with a colliding possibility with an
approaching vehicle while changing
lanes. It is to lower the colliding risk or
help mitigate the colliding damage.
WARNING
• Always be aware of road conditions
while driving and be alert for
unexpected situations even though
the Blind-Spot Collision Warning
system and Blind-Spot Collision-
Avoidance Assist system are
operating.
• Blind-Spot Collision Warning system
and Blind-Spot Collision-Avoidance
Assist system are supplemental
systems to assist you. Always pay
attention, while driving, for your
safety. Do not entirely rely on the
systems or an accident may occur.
• Blind-Spot Collision Warning system
and Blind-Spot Collision-Avoidance
Assist system are not substitutes
for proper and safe driving. Always
drive safely and use caution when
changing lanes or backing up the
vehicle.
Blind-Spot Collision Warning system
and Blind-Spot Collision-Avoidance
Assist system may not detect every
object alongside the vehicle.
System Setting and Activation
System setting
• The driver can activate the system
by placing the ignition switch to the
ON position and by selecting ‘User
Settings → Driver Assistance → Blind-
Spot Safety’
- BCA and BCW turn on and get ready to be activated when ‘Active
assist’ is selected. Then, if a vehicle
approaches the driver’s blind spot
area a warning sounds or braking
power is applied.
- BCW turns on and gets ready to be activated when ‘Warning only’
is selected. Then, if a vehicle
approaches the driver’s blind spot
area a warning sounds. Braking
assist will not be applied in this
setting.
- If you select “Off”, BCW system deactivates.
• If the engine is turned off then on again, the system maintains the
previous state.
• The driver can select the initial warning activation time in the
User Settings in the LCD display
or infotainment system display by
selecting ‘User Settings → Driver
Assistance → Warning Timing’.