2023 HYUNDAI SONATA HYBRID Owners Manual

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Driver’s hands not detected.
LFA system is disabled temporarily
If the driver still does not have their
hands on the steering wheel after the
message “Keep hands on steering
wheel”, Lane Following Assist 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, Lane Following
Assist will start controlling the steering
wheel.
WARNING
• Lane Following Assist is a
supplemental function only. It is the
responsibility of the driver to safely
steer the vehicle and to maintain it in
its lane.
• Turn off Lane Following Assist and
drive without using the function in
the following situations:
-In bad weather
-In bad road conditions
-When the steering wheel needs
to be controlled by the driver
frequently
-A trailer or carrier is installed.
Information
• Even though the steering is assisted by
Lane Following Assist, the driver may
control the steering wheel.
• The steering wheel may feel heavier
when the steering wheel is assisted by
Lane Following Assist than when it is
not.
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Check LFA (Lane Following Assist) system
If there is a problem with the system a
message will appear for a few seconds.
If the problem continues Lane Following
Assist failure indicator will illuminate.

While Driving
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Lane Following Assist will not be in the
ENABLED state and/or the steering wheel
will not be assisted when:
• The turn signal is turned on before
changing a lane. If you 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 Lane Following
Assist 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.
• If vehicle speed is over 95 mph (153
km/h)
• The vehicle makes sharp lane
changes.
• The vehicle brakes suddenly.
• Only one lane marker is detected.
• The lane is very wide or narrow.
• There are more than two lane markers
on the road (for example, construction
area).
• Radius of a curve is too small.
• The vehicle is driven on a steep
incline.
• The steering wheel is turned suddenly.
• Lane Following Assist may not operate
for 15 seconds after the engine is
started or the camera is initialized.
Limitations of Lane Following
Assist
Lane Following Assist may operate
prematurely even if the vehicle does
not depart from the intended lane, OR,
Lane Following Assist 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
(for example, 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 marker ahead is not visible
due to rain, snow, water on the road,
damaged or stained road surface, or
other factors.

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• 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.
• Driving the shared lane usage (bicycle
lane, pedestrians lane, etc.)
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 headlights 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
marker.
• 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.
• The sensor recognition changes
suddenly when passing over a speed
bump or driving on a steep up/down
or right/left grade
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
because of fog, heavy rain or snow.

While Driving
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Highway Driving Assist helps keep
the vehicle between lanes, maintain a
distance with the vehicle ahead, and
automatically adjusts the vehicle speed
to the speed limit while driving on the
highway.
WARNING
• Highway Driving Assist is not a
substitute for safe driving practices,
but a convenience function. It is the
responsibility of the driver to always
be aware of the surroundings and
drive safely.
• Highway Driving Assist relies entirely
on the road information provided
by the navigation system. It is the
responsibility of the driver to follow
traffic laws and avoid accidents.
• For your safety, please read the
owner's manual before using the
system.
Information
• Highway Driving Assist is available
only on controlled access road of
certain highways.

Controlled access road indicates roads with limited entrances and
exits that allow uninterrupted high
speed traffic flow. Only passenger
cars and motorcycles are allowed on
controlled access roads.
Available highway
(Controlled access road)
USA Select Interstate
Highway and U.S.
(Federal) and State Highways
Canada Select Provincial and
Territorial Highways
• Additional highways may be expanded
by navigation updates.
HIGHWAY DRIVING ASSIST (HDA) (IF EQUIPPED)

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Highway Driving Assist Setting
and Operation
Highway Driving Assist setting
• With the Engine Start/Stop button in
the ON or START position, Highway
Driving Assist can be activated
by selecting 'Driver Assistance
→
Highway Driving Assist’ from the User
Settings mode on the infotainment
system. For detailed information,
please refer to the infotainment
system manual separately supplied.
• If the engine is turned off then on
again, the system maintains the last
setting.
Operating conditions
Select 'Highway Driving Assist' from
the Settings menu in the infotainment
system screen and satisfy the following
conditions for the system to operate.
• Driving on the highway main line
• Smart Cruise Control is operating
- If Smart Cruise Control is in the
READY state the Highway Driving
Assist will be in the READY state.
The
indicator on the cluster will illuminate white.
• Vehicle speed is under 95 mph (153
km/h)
If all the mentioned conditions are
satisfied, Highway Driving Assist is
ENABLED and the
indicator on the cluster will illuminate green.
Steering wheel control
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Steering control
If the vehicle detects both lane markers
(lane color white), the
indicator light will change from white to green. This
indicates that the steering wheel is being
controlled.
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Temporary deactivation
The
indicator light changes from green to white when the steering wheel
control is temporarily deactivated. Even
if the steering wheel is not controlled,
the distance between the vehicle ahead
will be maintained.

While Driving
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Speed setting
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Automatic speed setting mode
Highway Driving Assist enters the
automatic speed setting mode when:
1. The operating conditions are satisfied
- indicator will illuminate
green
2. Smart Cruise Control set speed and
the highway speed limit matches
If Highway Driving Assist changes to the
automatic speed mode, the
symbol will turn green and a chime will sound.
When the highway speed limit changes,
the set speed automatically changes to
the changed speed limit.
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Manual speed setting mode
If the speed is set manually using the
RES+ or SET- switch on the steering
wheel, the set speed on the cluster will
turn white and the 'AUTO' symbol will
disappear.

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Warning Message
Hands-off warning
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Keep hands on steering wheel
If the driver takes their hands off the
steering wheel for several seconds while
Highway Driving Assist is activated,
Highway Driving Assist will warn the
driver.
Information
If the steering wheel is held with a light
grip, the message may appear because
Highway Driving Assist may not recognize
that the driver has their hands on the
steering wheel.
WARNING
The warning message may appear
late according to road conditions.
Therefore, always have your hands on
the steering wheel while driving.Highway Driving Assist (HDA) system
canceled
If the driver still does not have their
hands on the steering wheel after the
message "Keep hands on steering
wheel", Highway Driving Assist will be
canceled. However, if Lane Following
Assist is reactivated manually by the
driver, Highway Driving Assist will
reactivate.
To activate Lane Following Assist, refer to
“Lane Following Assist” in this chapter.
Highway Driving Assist will not be in
the ENABLED state and/or the steering
wheel will not be assisted when:
• The turn signal is turned on before
changing a lane. If you 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 over 95 mph (153
km/h).
• The vehicle makes sharp lane
changes.
• The vehicle brakes suddenly.
• Only one lane marker is detected.
• The lane is very wide or narrow.
• There are more than two lane markers
on the road (for example, construction
area).
• Radius of a curve is too small.
• The vehicle is driven on a steep
incline.
• The steering wheel is turned suddenly.

While Driving
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Highway Driving Assist malfunction
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Check Highway Driving Assist (HDA)
system
If there is a problem with Highway
Driving Assist, a message will appear for
a few seconds. If the problem continues,
have the vehicle inspected by an
authorized HYUNDAI dealer.
Information
• High Driving Assist is limited in other
countries.
• High Driving Assist only operates based
on the speed limits of the highway but it
does not work with the speed cameras.
• The time gap could occur between the
navigation speed warning and system
operation.
• Highway Driving Assist is not designed
to work on highways other than
mentioned as a controlled access road.
Highway Driving Assist automatically
cancels when you leave the highway.
• If there is a problem with Highway
Driving Assist, the function cannot be
activated in the infotainment system
screen.
• If your vehicle is 1640 ft. (500 m) ahead
and behind of an open tollgate, the
system is automatically canceled. Also,
it is converted to Smart Cruise Control
automatically with a pop-up message
on the navigation.
• In the automatic speed setting mode,
the vehicle automatically accelerates
or decelerates when the highway speed
limit changes.
• If your vehicle speed exceeds 95 mph
(153 km/h), Highway Driving Assist
is automatically canceled. Also, it is
converted to Smart Cruise Control
automatically with a pop-up message
on the navigation.
• If you enter a rest area on the highway
or a IC/JC (intersection/junction)
without a destination set, Highway
Driving Assist is canceled later than
when the vehicle actually leaves the
highway.