steering Hyundai Sonata 2020 Repair Manual

While Driving6-102
Lane changing
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• A vehicle which moves into your lane from an adjacent lane cannot be
recognized by the sensor until it is in
the sensor's detection range.
• The radar may not detect immediately when a vehicle cuts in suddenly.
Always pay attention to the traffic,
road and driving conditions.
• If a slower vehicle moves into your lane, your speed may decrease to
maintain the distance to the vehicle
ahead.
• If a faster vehicle which moves into your lane, your vehicle will accelerate
to the set speed.
Vehicle recognition
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• Some vehicles in your lane cannot be recognized by the sensor:
- Narrow vehicles such as motorcycles or bicycles
- Vehicles offset to one side
- Slow-moving vehicles or sudden- decelerating vehicles
- Stopped vehicles
- Vehicles with small rear profile such as trailers with no loads
• A vehicle ahead cannot be recognized correctly by the sensor if any of
following occurs:
- When the vehicle is pointing upwards due to overloading in the
luggage compartment
- While the steering wheel is operating
- When driving to one side of the lane
- When driving on narrow lanes or on curves
Apply the brake or accelerator pedal if
necessary.

06
6-109
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Lane Following Assist system helps
detect lane markers on the road
with a front view camera at the front
windshield, and assists the driver’s
steering to help keep the vehicle
between lanes.
WARNING
Lane Following Assist system 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 steer the
vehicle.
WARNING
Take the following precautions when
using Lane Following Assist system:
• Do not turn the steering wheel
suddenly when the steering wheel is
being assisted by the system.
• LFA system helps the driver to keep
the vehicle in the center of the lane
by assisting the driver’s steering.
However, the driver should not solely
rely on the system but always pay
attention on the steering wheel to
stay in the lane.
• The operation of LFA system can
be canceled or not work properly
according to road condition and
surroundings. Always be cautious
when driving.
• Do not disassemble LFA system
camera temporarily to tint the
window or attach any types of
coatings and accessories. If you
disassemble the camera and
assemble it again, have the vehicle
inspected by an authorized HYUNDAI
dealer.
LANE FOLLOWING ASSIST (LFA) (IF EQUIPPED)

While Driving6-110
• When you replace the windshield
glass, LFA system camera or related
parts of the steering wheel, have the
vehicle inspected by an authorized
HYUNDAI dealer.
• The system helps detect lane
markers and controls the steering
wheel by a camera, therefore, if the
lane markers are hard to detect, the
system may not work properly.
• Please refer to “Limitations of the
System”.
• Do not remove or damage the related
parts of LFA system.
• You may not hear a warning sound
of LFA system if the audio volume is
high.
• Do not place objects on the
dashboard that reflects light such as
mirrors, white paper, etc. This may
prevent LFA system from functioning
properly. •
Always have your hands on the
steering wheel while LFA system is
activated. If you continue to drive
with your hands off the steering
wheel after the “Keep hands on
steering wheel” warning message
appears, the system will turn off
automatically.
However, if the driver has their
hands on the steering wheel again,
the system will start controlling the
steering wheel.
• The steering wheel is not
continuously controlled so if the
vehicle speed is at a higher rate
when leaving a lane the vehicle may
not be controlled by the system. The
driver must always follow the speed
limit when using the system.
• If you attach objects to the steering
wheel, the system may not assist
steering or the hands off alarm may
not work properly.

06
6-111
LFA Operation
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With the Engine Start/Stop button
is in the ON or START position, Lane
Following Assist can be activated by
pressing the button.
Operating conditions
When the system is activated, the
indicator () on the cluster will
illuminate. The color of the indicator will
change depending on the condition of
LFA system.
- Green: Steering assist mode is ON
- White: Steering assist mode is OFF
LFA system operation
• If the vehicle is inside the lane with both lanes detected by the system
(lane color changes from gray to
white), and there is no abrupt steering
made by the driver, LFA system
changes to steering assist mode.
The
indicator light will come on
green, and the system helps the
vehicle stay in line by controlling the
steering wheel.
When the steering wheel is not
controlled temporarily, the

indicator light will flash green and
change to white.
Warning Message
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Keep hands on steering wheel
If the driver takes their hands off the
s
teering wheel for several seconds while
LFA system is activated, the system will
warn the driver.
Information
Hold the steering wheel tight. Otherwise,
LFA system could misjudge that the
driver’s hands are off the steering wheel,
and the above warning may occur.
WARNING
The warning message may appear
late according to road conditions.
Therefore, always have your hands on
the steering wheel while driving.

While Driving6-112
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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 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
• LFA 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 LFA 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
- A trailer or carrier is installed.
Information
• Even though the steering is assisted by
the system, the driver may 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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Check LFA (Lane Following Assist) system
If there is a problem with the system a
message will appear f

or a few seconds. If
the problem continues LFA system failure
indicator will illuminate.

06
6-113
LFA system 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 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.
• 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 (e.g. construction area).
• Radius of a curve is too small.
• 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.
Limitations of the System
LFA system may operate prematurely
even if the vehicle does not depart from
the intended lane, OR, LFA 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 marker ahead is not visible due to rain, snow, water on the road,
damaged or stained road surface, or
other factors.

While Driving6-116
System Setting and Operation
System 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, the system 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 whit

e), 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.

06
6-117
Speed setting
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Automatic speed setting mode
The system enters the automatic speed
se
tting 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 the system 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
- toggle switch on the
steering wheel, the set speed on the
cluster will turn white and the 'AUTO'
symbol will disappear.

While Driving6-118
Warning Message
Hands-off warning
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Keep hands on steering wheel
If the driver takes their hands off the
s
teering wheel for several seconds while
HDA system is activated, the system will
warn the driver.
Information
If the steering wheel is held with a light
grip, the message may appear because
HDA system 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 s

teering wheel after the
message "Keep hands on steering
wheel", HDA system will be canceled.
However, if Lane Following Assist is
reactivated manually by the driver,
Highway Driving Assist System will
reactivate.
To activate Lane Following Assist, refer to
“Lane Following Assist” in this chapter.
HDA system 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 (e.g. construction area).
• Radius of a curve is too small.
• The vehicle is driven on a steep incline.
• The steering wheel is turned suddenly.

While Driving6-120
CAUTION
Highway Driving Assist system may
not function properly in the following
situations:
• The navigation is not working
properly.
• The navigation is not updated.
• The real-time GPS or map
information provided has errors.
• The navigation is overloaded by
performing functions such as route
search, video playback, voice
recognition, etc. are performing
simultaneously.
• GPS signals are blocked in areas such
as a tunnel.
• The driver goes off course or the
route to the destination is changed
or canceled by resetting the
navigation.
• The vehicle enters a service station
or rest area
• Android Auto or Car Play is operating.
• The navigation cannot detect the
current vehicle position (ex: elevated
roads including overpass adjacent to
general roads or nearby roads exist
in a parallel way).
• The navigation is being updated
while driving.
• The navigation is being reset while
driving.
• The road is slippery due to bad
weather such as rain or snow.
Information
• For information's on vehicle to vehicle
distance control and the front radar,
refer to "Smart Cruise Control (SCC)"
in this chapter.
• For information's on steering control
and distance control and the front
camera, refer to "Lane Following Assist
(LFA)" in this chapter.
Information
This device complies with Part 15 of the
FCC rules.
Operation is subject to the following three
conditions:
1. This device may not cause harmful
interference, and
2. This device must accept any
interference received, including
interference that may cause undesired
operation.
3. Changes or modifications not expressly
approved by the party responsible
for compliance could void the user's
authority to operate the device.
Information
Radio frequency radiation exposure
information:
This equipment complies with FCC
radiation exposure limits set forth for an
uncontrolled environment.
This equipment should be installed and
operated with minimum distance of 8 in.
(20 cm) between the radiator (antenna)
and your body.
This transmitter must not be co-located or
operating in conjunction with any other
antenna or transmitter.