height HYUNDAI SONATA 2021 Owner's Manual

05
5-93
Warning message
„„Rear view camera
ODN8A049044
„„Rear ultrasonic sensor
ODN8A049045
Rear camera error or blockage/ Parking
sensor error or blockage
This warning message may appear when:
• The rear view camera or the ultrasonic
sensor(s) is blocked by dirt, snow, or a
foreign object.
• There is inclement weather, such as
heavy snow, rain, etc.
If any of these conditions occur, the
system may turn off automatically or not
operate properly.
When the warning message is displayed
in the cluster, make sure that the rear
view camera and the rear ultrasonic
sensors are clean.
System Malfunction
ODN8A049046
Check Parking Collision-Avoidance Assist
system
If there is a problem with Reverse Parking
Collision-Avoidance Assist system
or other related systems, a warning
message will appear and the system will
turn off automatically. Have the vehicle
inspected by an authorized HYUNDAI
dealer.
Limitations of the System
Reverse Parking Collision-Avoidance
Assist system may not assist braking
or alert the driver under the following
conditions even if there are pedestrians
or objects.
• Any non-factory equipment or
accessories have been installed.
• The condition of the vehicle is
unstable due to an accident or other
causes.
• The height of the bumper or the
sensor installation has been modified.
• The rear view camera or the ultrasonic
sensor(s) is damaged.
• The rear view camera or the ultrasonic
sensor(s) is stained with foreign
matter, such as snow, dirt, etc.
• The rear view camera is obscured
by a light source or by bad weather
conditions, such as heavy rain, fog,
snow, etc.
• The surrounding is either too dark or
too bright.

Convenient Features
5-94
• Outside air temperature is hot or cold.
• The wind is either strong (over 12 mph
(20 km/h)) or blowing perpendicular
to the rear bumper.
• Objects generating excessive
noise, such as vehicle horns, loud
motorcycle engines, or truck air
brakes, are near the vehicle.
• An ultrasonic sensor with a similar
frequency is near the vehicle.
• There is ground height difference
between the vehicle and the
pedestrian.
• The image of the pedestrian in the
rear view camera is indistinguishable
from the background.
• The pedestrian is near the rear edge of
the vehicle.
• The pedestrian is not standing upright.
• The pedestrian is either too short or
too tall for the system to recognize.
• The pedestrian is wearing clothes that
are hard for the system to recognize.
• The pedestrian is wearing a cloth that
does not reflect ultrasound well.
• The size, thickness, height, or shape of
the object does not reflect ultrasound
well (e.g., pole, bush, curbs, carts,
edge of a wall, etc.).
• The pedestrian or the object is
moving.
• The pedestrian or the object is very
close to the rear of the vehicle.
• A wall is behind the pedestrian or the
object.
• The object is not at the rear center of
the vehicle.
• The plane of the obstacle is not
parallel to the rear bumper.
• The road is slippery or inclined.
• The driver backs up the vehicle
immediately after shifting to R
(Reverse).
• The driver accelerates or turns the
vehicle. Reverse Parking Collision-Avoidance
Assist system may alert the driver or
apply brake power unnecessarily under
the following conditions even if there are
“no” pedestrians or objects.
•
Any non-factory equipment or
accessories have been installed.
• The condition of the vehicle is
unstable due to an accident or other
causes.
• The height of the bumper or the
sensor installation has been modified.
• The bumper height has changed due
to heavy loads, tire pressure change,
etc.
• The rear view camera or the ultrasonic
sensor(s) is stained with foreign
matter, such as snow, dirt, etc.
• The pattern on the road is mistaken
for a pedestrian.
• There is a shadow or a light reflecting
on the ground.
• Pedestrians or objects are around the
path of the vehicle.
• Objects generating excessive
noise, such as vehicle horns, loud
motorcycle engines, or truck air
brakes, are near the vehicle.
• The vehicle is backing towards a
narrow passage or parking space.
• The vehicle is backing towards an
uneven road surface, such as unpaved
road, gravel, bump, gradient, etc.
• A trailer is attached to the vehicle

05
5-97
To Turn off Reverse Parking
Distance Warning System
(if equipped)
ODN8059057L
Push the button to turn off Reverse
Parking Distance Warning system. The
indicator light on the button will turn on.
Non-Operational Conditions
of Reverse Parking Distance
Warning System
Reverse Parking Distance Warning
system may not operate normally when:
• Moisture is frozen to the sensor.
• Sensor is covered with foreign matter,
such as snow or water, or the sensor
cover is blocked.
There is a possibility of Reverse
Parking Distance Warning system
malfunction when:
• Driving on uneven road surfaces such
as unpaved roads, gravel, bumps, or
gradient.
• Objects generating excessive
noise such as vehicle horns, loud
motorcycle engines, or truck air
brakes can interfere with the sensor.
• Heavy rain or water spray is present.
• Wireless transmitters or mobile
phones are present near the sensor.
• The sensor is covered with snow.
• Any non-factory equipment or
accessories have been installed, or if
the vehicle bumper height or sensor
installation has been modified.
Detecting range may decrease
when:
Outside air temperature is extremely hot
or cold.

Convenient Features
5-98
The following objects may not be
recognized by the sensor:
• Sharp or slim objects such as ropes,
chains or small poles.
• Objects, which tend to absorb sensor
frequency such as clothes, spongy
material or snow.
• Undetectable objects smaller than 40
in (100 cm) and narrower than 6 in (14
cm) in diameter.
WARNING
Your new vehicle warranty does not
cover any accidents or damage to the
vehicle or injuries to its occupants
related to Reverse Parking Distance
Warning system. Always drive safely
and cautiously.
Reverse Parking Distance
Warning System Precautions
• Reverse Parking Distance Warning
system may not sound consistently
depending on the speed and shapes
of the objects detected.
• Reverse Parking Distance Warning
system may malfunction if the vehicle
bumper height or sensor installation
has been modified or damaged. Any
non-factory installed equipment or
accessories may also interfere with
the sensor performance.
• The sensor may not recognize objects
less than 12 in (30 cm) from the
sensor, or it may sense an incorrect
distance. Use caution.
• When the sensor is frozen or stained
with snow, dirt, or water, the sensor
may be inoperative until the stains are
removed using a soft cloth.
• Do not push, scratch or strike the
sensor with any hard objects that
could damage the surface of the
sensor. Sensor damage could occur.
• Do not spray the sensors or its
surrounding area directly with a high
pressure washer. Shock applied from
high pressure water may cause the
device to not operate normally.

Convenient Features
5-102
Non-Operational Conditions
of Forward/Reverse Parking
Distance Warning System
Forward/Reverse Parking Distance
Warning system may not operate
normally when:
• Moisture is frozen to the sensor.
• Sensor is covered with foreign matter,
such as snow or water, or the sensor
cover is blocked.
There is a possibility of Forward/
Reverse Parking Distance Warning
system malfunction when:
• Driving on uneven road surfaces such
as unpaved roads, gravel, bumps, or
gradient.
• Objects generating excessive
noise such as vehicle horns, loud
motorcycle engines, or truck air
brakes can interfere with the sensor.
• Heavy rain or water spray is present.
• Wireless transmitters or mobile
phones are present near the sensor.
• The sensor is covered with snow.
• Any non-factory equipment or
accessories have been installed, or if
the vehicle bumper height or sensor
installation has been modified.
Detecting range may decrease
when:
Outside air temperature is extremely hot
or cold.
The following objects may not be
recognized by the sensor:
• Sharp or slim objects such as ropes,
chains or small poles.
• Objects, which tend to absorb sensor
frequency such as clothes, spongy
material or snow.
• Undetectable objects smaller than 40
in (100 cm) and narrower than 6 in (14
cm) in diameter.
WARNING
Your new vehicle warranty does not
cover any accidents or damage to the
vehicle or injuries to its occupants
related to Forward/Reverse Parking
Distance Warning system. Always drive
safely and cautiously.

05
5-103
Forward/Reverse Parking
Distance Warning System
Precautions
• Forward/Reverse Parking Distance
Warning system may not sound
consistently depending on the speed
and shapes of the objects detected.
• Forward/Reverse Parking Distance
Warning system may malfunction if
the vehicle bumper height or sensor
installation has been modified or
damaged. Any non-factory installed
equipment or accessories may also
interfere with the sensor performance.
• The sensor may not recognize objects
less than 12 in (30 cm) from the
sensor, or it may sense an incorrect
distance. Use caution.
• When the sensor is frozen or stained
with snow, dirt, or water, the sensor
may be inoperative until the stains are
removed using a soft cloth.
• Do not push, scratch or strike the
sensor. Sensor damage could occur.
• Do not spray the sensors or its
surrounding area directly with a high
pressure washer. Shock applied from
high pressure water may cause the
device to not operate normally.

06
6-27
OIK057080L
Press brake pedal to deactivate AUTO
HOLD
If you did not apply the brake pedal when
you release the Auto Hold by pressing
the [AUTO HOLD] switch, a warning will
sound and a message will appear.
OTM058159L
AUTO HOLD conditions not met. Close
door and hood.
When you press the [AUTO HOLD]
switch, if the driver's door and engine
hood are not closed, a warning will
sound and a message will appear on the
cluster LCD display.
Press the [AUTO HOLD] switch after
closing the driver's door and hood.
Anti-lock Brake System (ABS)
WARNING
An Anti-Lock Braking System (ABS) or
an Electronic Stability Control (ESC)
system will not prevent accidents
due to improper or dangerous driving
maneuvers. Even though vehicle
control is improved during emergency
braking, always maintain a safe
distance between you and objects
ahead of you. Vehicle speeds should
always be reduced during extreme
road conditions. The braking distance
for cars equipped with ABS or ESC
may be longer than for those without
these systems in the following road
conditions.
Drive your vehicle at reduced speeds
during the following conditions:
• Rough, gravel or snow-covered
roads.
• On roads where the road surface is
pitted or has different surface height.
• Tire chains are installed on your
vehicle.
The safety features of an ABS or ESC
equipped vehicle should not be tested
by high speed driving or cornering. This
could endanger the safety of yourself or
others.
ABS is an electronic braking system that
helps prevent a braking skid. ABS allows
the driver to steer and brake at the same
time.

06
6-75
•„Type A•„Type B
OTM058087LODN8059289L
Check Blind-Spot Collision-Avoidance
Assist (BCA) system
If there is a problem with BCA system,
a warning message will appear. The
system will turn off automatically. BCW
will still operate even if BCA system turns
off due to malfunction. Have the vehicle
inspected by an authorized HYUNDAI
dealer.
Limitations of the System
The driver must be cautious in the below
situations, because the system may not
detect other vehicles or objects in certain
circumstances.
• The system may not work around 15
seconds after starting the vehicle or
the initialization or rebooting of the
front view camera.
• When a trailer or carrier is installed.
• The vehicle drives in inclement
weather such as heavy rain or snow.
• The sensors are polluted with rain,
snow, mud, etc.
• The rear bumper where the sensors
are located is covered with a foreign
object such as a bumper sticker, a
bumper guard, a bike rack, etc.
• The rear bumper is damaged, or the
sensor is out of the original default
position.
• The vehicle height gets lower or
higher due to heavy loading in a trunk,
abnormal tire pressure, etc.
• When the temperature of the rear
bumper is high.
• When the sensors are blocked by
other vehicles, walls or parking-lot
pillars.
• The vehicle drives on a curved road.
• The vehicle drives through a tollgate.
• The road pavement (or the peripheral
ground) abnormally contains metallic
components (i.e. possibly due to
subway construction).
• There is a fixed object near the
vehicle, such as a guardrail.

6 -76
• While going down or up a steep
road where the height of the lane is
different.
• Driving on a narrow road where trees
or grass or overgrown.
• Driving in rural areas where the sensor
does not detect another vehicle or
structure for an extended period of
time.
• Driving on a wet road.
• Driving on a road where the guardrail
or wall is in double structure.
• A big vehicle is near such as a bus or
truck.
• When the other vehicle approaches
very close.
• When the other vehicle passes at a
very fast speed.
• While changing lanes.
• If the vehicle has started at the same
time as the vehicle next to you and
has accelerated.
• When the vehicle in the next lane
moves two lanes away from you OR
when the vehicle two lanes away
moves to the next lane from you.
• A motorcycle or bicycle is near.
• A flat trailer is near.
• If there are small objects in the
detecting area such as a shopping
cart or a baby stroller. •
If there is a low height vehicle such as
a sports car.
• The brake pedal is depressed.
• ESC (Electronic Stability Control) is
activated.
• ESC (Electronic Stability Control)
malfunctions.
• The tire pressure is low or a tire is
damaged.
• The brake is reworked.
• The vehicle abruptly changes driving
direction.
• The vehicle makes sharp lane
changes.
• The vehicle sharply stops.
• Temperature is extremely low around
the vehicle.
• The vehicle severely vibrates while
driving over a bumpy road, uneven/
bumpy road, or concrete patch.
• The vehicle drives on a slippery
surface due to snow, water puddle,
or ice.
• Lane Keeping Assist does not operate
normally. (if equipped)
• For more information, refer to “Lane
Keeping Assist (LKA)” in this chapter.
While Driving

6-78
ODN8A069033
• Driving where the heights of the lanes
are different
BCW and BCA systems may not
operate properly when driving where
the heights of the lanes are different.
In certain instances, the system may
not detect the vehicle on a road with
different lane heights (i.e. underpass
joining section, grade separated
intersections, etc.).
Always pay attention to road and
driving conditions, while driving.
ODN8A069035
[A] : Noise barrier, [B] : Guardrail
• Driving where there is a structure
beside the road
BCW and BCA systems may not
operate properly when driving where
there is structure beside the road.
In certain instances, the system may
wrongly recognize the structures
(i.e. noise barriers, guardrail, double
guardrail, median strip, bollard, street
light, road sign, tunnel wall, etc.)
beside the road.
Always pay attention to road and
driving conditions, while driving.
Information
This device complies with Part 15 of the
FCC rules.
Operation is subject to the following two
conditions:
1.

This device may not cause harmful
interfer

ence.
2.

This device must accept any
interfer

ence received, including
interference that may cause undesired
operation.
While Driving