sensor HYUNDAI I20 2023 Repair Manual

07
7-145
Reverse Parking Collision-
Avoidance Assist operation
Operating conditions
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from the Settings menu, Reverse Parking
Collision-Avoidance Assist will be in
the ready status when the following
conditions are satisfied:
- The tailgate is closed
- The gear is shifted to R (Reverse)
- The vehicle is below 6 mph (10 km/h)
- Function components such as the rear
view camera and the rear ultrasonic
sensors are in normal conditions
When Reverse Parking Collision-
Avoidance Assist activates, a line
appears behind the vehicle image in the
instrument cluster.
Reverse Parking Collision-Avoidance
Assist operates only once after the gear
is shifted to R (Reverse). To reactivate
Reverse Parking Collision-Avoidance
Assist, shift the gear from another gear
to R (Reverse).
OBC3070113TU
Active assist

[If the function detects a risk of
collision with a pedestrian or an
object, the function will warn the
driver with an audible warning,
steering wheel vibration (if equipped)
and warning message on the cluster.
When Rear View Monitor is operating,
a warning will appear on the
infotainment system screen.

[If the function detects an imminent
collision with a pedestrian or an object
behind the vehicle, the function will
assist you with braking. The driver
needs to pay attention as the brake
assist will end within 2 seconds. The
driver must immediately depress
the brake pedal and check vehicle
surroundings.

[Brake control will end when:
- The gear is shifted to P (Park) or D
(Drive).
- The driver depresses the brake pedal
with sufficient power
- Braking assist has last for
approximately 2 seconds

[The warning will turn off when:
- The driver shifts the gear to P (Park),
N (Neutral) or D (Drive)

[The brake control may not operate
properly depending on the status of
ESC (Electronic Stability Control).
There will only be a warning when:
- The ESC (Electronic Stability Control)
warning light is on
- ESC (Electronic Stability Control) is
engaged in a different function

Driver assistance system
7-146
Warning Only

[If the function detects a risk of
collision with a pedestrian or an
object, the function will warn the
driver with an audible warning,
steering wheel vibration (if equipped)
and warning message on the cluster.
When Rear View Monitor is operating,
a warning will appear on the
infotainment system screen.

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will not be assisted.

[The warning will turn off when the
gear is shifted to P (Park), N (Neutral)
or D (Drive).
Reverse Parking Collision-
Avoidance Assist malfunction
and limitations
Reverse Parking Collision-
Avoidance Assist malfunction
OBC3070058
When Reverse Parking Collision-
Avoidance Assist or other related
systems are not working properly, the

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message will appear on the cluster, and
the function will turn off automatically.
We recommend that the function be
inspected by a HYUNDAI authorised
repairer.
Reverse Parking Collision-
Avoidance Assist disabled
OBC3070042
The rear view camera is used as a
detecting sensor to detect pedestrians. If
the camera lens is covered with foreign
material such as snow or rain, it may
adversely affect camera performance
and Reverse Parking Collision-Avoidance
Assist may not operate normally. Always
keep the camera lens clean.
OBC3070060
The rear ultrasonic sensors are located
inside the rear bumper to detect objects
in the rear area. If the sensors are
covered with foreign material, such as
snow or rain, it may adversely affect
sensor performance and Reverse Parking
Collision-Avoidance Assist may not
operate normally. Always keep the rear
bumper clean.

07
7-147
„Rear view camera„Rear ultrasonic sensor
OBC3070061OBC3070058
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warning message will appear on the
cluster if the following situations occur:
- The rear view camera is covered with
foreign material, such as snow or rain,
etc.
- There is inclement weather, such as
heavy snow, heavy rain, etc.
If this occurs, Reverse Parking Collision-
Avoidance Assist may turn off or may
not operate properly. Check whether
the rear view camera and rear ultrasonic
sensors are clean.
Limitations of Reverse Parking
Collision-Avoidance Assist
Reverse Parking Collision-Avoidance
Assist may not assist braking or warn
the driver even if there are pedestrians
or objects under the following
circumstances:

[Any non-factory equipment or
accessory is installed

[Your vehicle is unstable due to an
accident or other causes

[Bumper height or rear ultrasonic
sensor installation has been modified

[Rear view camera or rear ultrasonic
sensor(s) is damaged

[Rear view camera or the rear
ultrasonic sensor(s) is stained with
foreign material, such as snow, dirt,
etc.

[Rear view camera is obscured by a
light source or by inclement weather,
such as heavy rain, fog, snow, etc.

[The surrounding is very bright or very
dark

[Outside temperature is very high or
very low

[The wind is either strong (above
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
your vehicle

[An ultrasonic sensor with similar
frequency is near your 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

Driver assistance system
7-148

[The pedestrian is near the rear edge of
the vehicle

[The pedestrian is not standing upright

[The pedestrian is either very short or
very tall for the function to detect

[The pedestrian or cyclist is wearing
clothing that easily blends into the
background, making it difficult to
detect

[The pedestrian is wearing clothing that
does not reflect ultrasonic waves well

[Size, thickness, height, or shape of
the object does not reflect ultrasonic
waves 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 located at the rear
centre of your vehicle

[The object 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 circles the
vehicleReverse Parking Collision-Avoidance
Assist may unnecessarily warn the driver
or assist with braking even if there are
no pedestrians or objects under the
following circumstances:

[Any non-factory equipment or
accessory is installed

[Your vehicle is unstable due to an
accident or other causes

[Bumper height or rear ultrasonic
sensor installation has been modified

[Your vehicle height is low or high
due to heavy loads, abnormal tyre
pressure, etc.

[Rear view camera or the rear
ultrasonic sensor(s) is stained with
foreign material, such as snow, dirt,
etc.

[The pattern on the road is mistaken for
a pedestrian

[There is shadow or 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
your vehicle

[Your vehicle is backing towards a
narrow passage or parking space

[Your vehicle is backing towards an
uneven road surface, such as an
unpaved road, gravel, bump, gradient,
etc.

[A trailer or carrier is installed on the
rear of your vehicle

[An ultrasonic sensor with similar
frequency is near your vehicle

07
7-149
WARNING
Take the following precautions when
using Reverse Parking Collision-
Avoidance Assist:

[Always pay extreme caution whilst
driving. The driver is responsible for
controlling the brake for safe driving.

[Always pay attention to road and
traffic conditions whilst driving,
whether or not there is a warning.

[Always look around your vehicle to
make sure there are no pedestrians
or objects before moving the vehicle.

[The performance of Reverse Parking
Collision-Avoidance Assist may
vary under certain conditions. If
the vehicle speed is above 2 mph
(4 km/h), the function will provide
collision avoidance assist only when
pedestrians are detected. Always
look around and pay attention when
backing up your vehicle.

[Some objects may not be detected by
the rear ultrasonic sensors due to the
objects distance, size or material, all
of which can limit the effectiveness
of the sensor.

[Reverse Parking Collision-Avoidance
Assist may not operate properly
or may operate unnecessarily
depending on the road conditions
and the surroundings.

[Do not solely rely on the function.
Doing so may lead to vehicle damage
or injuries.
CAUTION

[Noise may be heard when sudden
braking occurs to avoid a collision.

[If any other warning sound such
as the seat belt warning chime is
already generated, Reverse Parking
Collision-Avoidance Assist warning
may not sound.

[The function may not work properly
if the bumper has been damaged,
replaced or repaired.

[Reverse Parking Collision-Avoidance
Assist may not operate normally if
interfered by strong electromagnetic
waves.

[Playing the vehicle audio system at
high volume may prevent passengers
from hearing Reverse Parking
Collision-Avoidance Assist warning
sounds.

[Turn off Reverse Parking Collision-
Avoidance Assist when towing a
trailer. If towing and moving in
reverse, Reverse Parking Collision-
Avoidance Assist will activate as it
detects the trailer.

Driver assistance system
7-150
CAUTION
Take the following precautions to
maintain optimal performance of the
detecting sensors:

[Always keep the rear view camera
and rear ultrasonic sensors clean.

[Do not use any cleanser containing
acid or alkaline detergents when
cleaning the rear view camera lens.
Use only a mild soap or neutral
detergent, and rinse thoroughly with
water.

[Do not spray the rear view camera or
the rear ultrasonic sensors or their
surrounding area directly with a
high pressure washer. It may cause
the rear view camera or the rear
ultrasonic sensors to malfunction.

[Do not apply objects, such as a
bumper sticker or a bumper guard,
near the rear view camera or rear
ultrasonic sensors or apply paint to
the bumper. Doing so may adversely
affect the performance of the
function.

[Never disassemble or apply impact
on the rear view camera or the rear
ultrasonic sensors components.

[Do not apply unnecessary force on
the rear view camera or the rear
ultrasonic sensors. The function
may not operate properly if the rear
view camera or the rear ultrasonic
sensor(s) is forcibly moved out of
proper alignment. We recommend
that the vehicle be inspected by a
HYUNDAI authorised repairer.
Information
Reverse Parking Collision-Avoidance
Assist can detect a pedestrian or an object
when:

07
7-151
„Parallel reverse parking
OJX1070035R
„Perpendicular reverse parking
OJX1070034R
„Parallel forward exit
OJX1070036R

[Parking Assist helps the driver with
perpendicular reverse parking and
parallel reverse parking, and when
leaving the parking space, parallel
forward exit is assisted.

[When Parking Assist operates, Parking
Distance Warning will also operate.
For more details, refer to “Parking
Distance Warning (PDW)” sections in
chapter 7.
Detecting sensor
OBC3070080TU
OBC3070081TU[1] : Front ultrasonic sensors,
[2] : Front side ultrasonic sensors,
[3] : Rear side ultrasonic sensors,
[4] : Rear ultrasonic sensors
Refer to the picture above for the
detailed location of the detecting
sensors.
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Driver assistance system
7-152
CAUTION
Take the following precautions to
maintain optimal performance of the
detecting sensors:

[Never disassemble the detecting
sensor or sensor assembly, or apply
any impact on it.

[If the detecting sensor needs to be
replaced or repaired, we recommend
that you have your vehicle inspected
by a HYUNDAI authorised repairer.

[Parking Assist may malfunction if the
vehicle bumper height or ultrasonic
sensor installation has been modified
or damaged. Any non-factory
installed equipment or accessories
may also interfere with the sensor
performance.

[When the ultrasonic sensor is frozen
or stained with snow, dirt, or water,
the sensor may be not operate until
the stains are removed using a soft
cloth.

[Do not push, scratch or strike the
ultrasonic sensor. Sensor damage
could occur.

[Do not spray the ultrasonic sensors
or its surrounding area directly with a
high pressure washer.
Parking Assist settings
Setting features
OBC3070115TU
Warning volume
With the engine on select ‘Driver
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07
7-161
OBC3070118TU
3. Checking space
(1) When the vehicle is parked parallel,
the vehicle sensors will detect the
distance from nearby objects and
check for space to exit.

[If the front or rear vehicle (or object) is
too near, the function will not be able
to search for space, and will turn off.

[Parking Assist may not be able to
search for space even if there is space
to leave, and the function may search
for a space that is not suitable for
the vehicle to leave in the following
circumstances:
- The ultrasonic sensor is frozen or
dirty
- There are objects located high or low
- There are pillars around the parking
space
- The parked vehicle has objects
attached to the bumper such as
bumper guard, trailer hitch, etc. OBC3070100TU/OBC3070102TU
OBC3070101TU/OBC3070099TU
4. Steering wheel control
(1) Shift the gear to D (Drive) or R
(Reverse) according to the message
on the cluster.
(2) Parking Assist will start to control the
steering wheel.
- If the steering wheel is held tight,
Parking Assist will be cancelled.
(3) Take your foot off the brake pedal
and drive forward or in reverse
according to the message on the
cluster.

Driver assistance system
7-164
Parking Assist malfunction and
limitations
Parking Assist malfunction
OBC3070120TU
When Parking Assist is not working
properly, the ‘Check PA (Parking Assist)
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the cluster. If the message appears, stop
using the function, and we recommend
that the function be inspected by a
HYUNDAI authorised repairer.
Limitations of Parking Assist
In the following circumstances, function
performance to park or exit the vehicle
may be limited or there may be a risk
of collision. Park or exit the vehicle
manually if necessary.

[An object is attached to the steering
wheel

[The vehicle is installed with a snow
chain, spare tyre or different size
wheel

[Tyre pressure is lower or higher than
the standard tyre pressure

[Your vehicle is loaded with cargo
longer or wider than your vehicle or a
trailer is connected to your vehicle

[There is a problem with the wheel
alignment

[Your vehicle is leaned severely to one
side

[Your vehicle is equipped with a trailer
hitch

[The license plate is installed differently
from the original location

[There is a person, animal or object
above or below the ultrasonic sensor
when Parking Assist is activated

[The parking space is curved or
diagonal

[There is an obstacle such as a person,
animal or object (trash can, bicycle,
motorcycle, shopping cart, narrow
pillar etc.) near the parking space