sensor HYUNDAI SONATA 2023 Repair Manual

While Driving
6-90
OHY050024
After the vehicle stops, when an
approaching vehicle from the rear area is
detected as soon as a passenger opens
a door, Safe Exit Warning will warn the
driver with a warning message and
an audible warning to help prevent a collision.
CAUTION
Warning timing may vary depending on
the speed of the approaching vehicle.
Detecting sensor
ODN8069031L
The rear corner radars are sensors
located inside the rear bumper to detect
the side and rear areas. Always keep the
rear bumper clean for proper operation
of Safe Exit Warning.
NOTICE
For more details on the precautions of
the rear corner radars, refer to “Blind-
Spot Collision Warning (BCW)” or
“Blind-Spot Collision-Avoidance Assist
(BCA)” section in chapter 6.
safe eXit warning (sew) (if equippeD)

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WARNING
Take the following precautions when
using Safe Exit Assist: • For your safety, change the Settings
after parking the vehicle at a safe
location.
• If any other function’s warning
message is displayed or audible
warning is generated, Safe Exit
Assist warning message may not be
displayed and audible warning may
not be generated.
• You may not hear the warning sound
of Safe Exit Assist if the surrounding
is noisy.
• Safe Exit Assist does not operate in
all situations or cannot prevent all
collisions.
• Safe Exit Assist may warn the driver
late or may not warn the driver
depending on the road and driving
conditions. Always check vehicle
surroundings.
• The driver and passengers are
responsible for accidents that occurs
while exiting the vehicle. Always
check the surroundings before you
exit the vehicle.
• Never deliberately operate Safe Exit
Assist. Doing so may lead to serious
injury or death.
• Safe Exit Assist does not operate if
there is a problem with Blind-Spot
Safety system. The warning message
of Blind-Spot Safety system will appear when:
- Blind-Spot Safety system sensor or
the sensor surrounding is polluted
or covered
- Blind-Spot Safety system fails to warn passengers or falsely warn
passengers Information
After the engine is turned off, Safe Exit
Assist operates approximately for 3 minutes, but turns off immediately if the
doors are locked.

While Driving
6-94
Function malfunction and
limitations
Function malfunction
ODN8A070030
When Safe Exit Assist is not working
properly, the ‘Check Blind-Spot Safety
system’ warning message will appear
on the cluster, and the system will turn
off automatically or the system will be
limited. We recommend that the system
be inspected by an authorized HYUNDAI
dealer. Function disabled
OCN7070041L
When the rear bumper around the rear
corner radar or sensor is covered with
foreign material, such as snow or rain,
or installing a trailer or carrier, it can
reduce the detecting performance and
temporarily limit or disable Safe Exit
Assist.
If this occurs, the ‘Blind-Spot Safety
function disabled. Radar blocked’
warning message will appear on the
cluster.
The function will operate normally
when such foreign material or trailer,
etc. is removed, and then the engine is
restarted.
If the function does not operate normally
after it is removed, we recommend
that the system be inspected by an
authorized HYUNDAI dealer.

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WARNING
• Even though the warning message
does not appear on the cluster, Safe
Exit Assist may not properly operate.
• Safe Exit Assist may not properly
operate in an area (e.g. open
terrain) where any substance are
not detected right after the engine
is turned on, or when the detecting
sensor is blocked with foreign
material right after the engine is turned on.
CAUTION
Turn off Safe Exit Assist to install a
trailer, carrier, etc., or remove the
trailer, carrier, etc. to use Safe Exit
Assist. Limitations of the function
Safe Exit Assist may not operate
normally, or the function may operate
unexpectedly under the following
circumstances: •
Getting off the vehicle where trees or
grass are overgrown
• Getting off the vehicle where the road
is wet
• The approaching vehicle is very fast or
very slow WARNING
• Safe Exit Assist may not operate
normally if interfered by strong
electromagnetic waves.
• Safe Exit Assist may not operate for 3
seconds after the vehicle is started,
or rear corner radars are initialized.

While Driving
6-100
Information
The system may suggest a break according
to the driver’s driving pattern or habits
even if the driver doesn’t feel fatigue.
NOTICE
• Driver Attention Warning system
utilizes the camera sensor on the
front windshield for its operation. To
keep the camera sensor in the best
condition, you should observe the
followings:
• Never install any accessories or
stickers on the front windshield, or
tint the front windshield.
• NEVER place any reflective objects
(i.e. white paper, mirror) over the
dashboard. Any light reflection
may cause a malfunction of Driver
Attention Warning system.
• Pay extreme caution to keep the
camera sensor dry.
• Never disassemble the camera
assembly, or apply any impact on the
camera assembly.
If the sensor is forcibly moved out
of proper alignment, the system
may not operate correctly. Have the
vehicle inspected by an authorized
HYUNDAI dealer.
CAUTION
• Driver Attention Warning system may
not provide alerts in the following
situations:
• Driver Attention Warning system
is using the front view camera. To
optimize the function of the front
view camera, the driver should
manage carefully. For detailed
information, please refer to the
warning statements in Lane Keeping
Assist system section.
• The lane detection performance
is limited. (For more information,
refer to “Lane Keeping Assist (LKA)”
section in this chapter.)
• The vehicle is erratically driven
or is abruptly turned for obstacle
avoidance (e.g. construction area,
other vehicles, fallen objects, bumpy
road).
• Forward drivability of the vehicle is
severely undermined (possibly due
to wide variation in tire pressures,
uneven tire wear-out, toe-in/toe-out
alignment).
• The vehicle is driven on a curvy road.
• The vehicle is driven through a windy
area.
• The vehicle is driven on a bumpy
road.
• The vehicle is controlled by the
following driving assist systems:
- Forward Collision-Avoidance Assist
system
- Lane Keeping Assist system
- Smart Cruise Control system
- Lane Following Assist system
CAUTION
Playing the vehicle audio system at
high volume may prevent occupants
from hearing Driver Attention Warning
system warning sounds.

While Driving
6-102
Limitations
The leading Vehicle Departure Alert
function may not properly operate
with limited alerting in the following
situations:
OADAS021SD
[A] : Your vehicle • When a vehicle cuts in front of your
vehicle (No vehicle ahead)
If a vehicle cuts in front of your vehicle within the sensor to detect distance to
the vehicle ahead, it may not operate
to alert.
OADAS022SD
[A] : Your vehicle, [B] : Vehicle in front • When a vehicle cuts in front of your
vehicle (vehicle ahead)
According to the cut-in position, the function may operate to alert the
driver or it may not alert the driver of
the departure of the vehicle in front or
the vehicle cut in.
OADAS023SD
[A] : Your vehicle, [B] : Vehicle in front • When a vehicle in front turns right or
left or makes a U-turn
If a vehicle in front turns the steering wheel rapidly and drives away from a
closer distance, it may not operate to
alert the driver.
OADAS024SD
• When a vehicle in front makes a
quick start
If a vehicle in front makes a quick start, the function may alert earlier or
it may not alert to the driver.

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To temporarily accelerate with
Smart Cruise Control on
If you want to speed up temporarily
when Smart Cruise Control is on, depress
the accelerator pedal. Increased speed
will not interfere with Smart Cruise
Control operation or change the set speed.
To return to the set speed, take your foot
off the accelerator pedal.
If you push the toggle switch down
(SET-) at increased speed, the set speed
is updated.
Information
Be careful when accelerating temporarily,
because the speed is not controlled
automatically at this time even if there is a
vehicle in front of you. Smart Cruise Control will be
temporarily canceled when:
ODN8069048
Cancelled manually • Depressing the brake pedal.
• Pushing the CANCEL (CNCL) button
located on the steering wheel.
Smart Cruise Control turns off
temporarily when the Set Speed and
Vehicle-to-Vehicle Distance indicator on
the LCD display turns off.
The cruise indicator (
) is illuminated
continuously.
Cancelled automatically • The driver’s door is opened.
• The vehicle is shifted to N (Neutral), R
(Reverse) or P (Park).
• The parking brake is applied.
• The vehicle speed is over 190 km/h
(120 mph).
• The ESC (Electronic Stability Control),
TCS (Traction Control System) or ABS
is operating.
• The ESC is turned off.
• The sensor or the cover is dirty or
blocked with foreign matter.
• The vehicle is stopped for a certain
period of time.

While Driving
6-116
Sensor to detect distance to the
vehicle ahead (Front view camera
and Front Radar)
„„Front view camera
ODN8A069024
Front view camera
The front view camera is a sensor
detecting the lane. If the sensors are
covered with snow, rain or foreign
substance, the system may temporarily
be cancelled and not work properly
until the system is cancelled due to the
degradation of the sensor’s detection
performance. Always keep the sensor clean. 
Refer to “Lane Keeping Assist (LKA)”
for cautions for the front camera.
„„Front radar
ODN8A069023
Front radar
The front radar is a sensor detecting
vehicles in front and maintains the
distance between them. If the sensors are covered with snow, rain
or foreign substance, the system may
temporarily be cancelled and not work
properly until the system is cancelled
due to the degradation of the sensor’s
detection performance. Always keep the sensor clean.
CAUTION
• Do not apply license plate frame or
foreign objects such as a bumper
sticker or a bumper guard near the
radar sensor. Doing so may adversely
affect the sensing performance of
the radar.
• Always keep the radar sensor and
lens cover clean and free of dirt and debris.
• Use only a soft cloth to wash the
vehicle. Do not spray pressurized
water directly on the sensor or
sensor cover.
• Be careful not to apply unnecessary
force on the radar sensor or sensor
cover. If the sensor is forcibly
moved out of proper alignment,
Smart Cruise Control system
may not operate correctly. In this
case, a warning message may not
be displayed. Have the vehicle
inspected by an authorized HYUNDAI
dealer.
• If the front bumper becomes
damaged in the area around the
radar sensor, Smart Cruise Control
system may not operate properly.
Have the vehicle inspected by an
authorized HYUNDAI dealer.
• Use only genuine HYUNDAI parts to
repair or replace a damaged sensor
or sensor cover. Do not apply paint to
the sensor cover.

06
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Warning message
OTM058061L
Smart Cruise Control disabled.
Radar blocked
When the sensor lens cover is blocked
with dirt, snow, or debris, Smart Cruise
Control system operation may stop
temporarily. If this occurs, a warning
message will appear on the cluster LCD
display. Remove any dirt, snow, or debris
and clean the radar sensor lens cover
before operating Smart Cruise Control
system. Smart Cruise Control system
may not properly activate, if the radar is
totally covered, or if any substance is not
detected after turning on the engine
(e.g. in an open terrain).
Information
For the SCC operation is temporarily
stopped if the radar is blocked, but you
wish to use cruise control mode (speed
control function), you must convert to the
cruise control mode (refer to "To convert
to Cruise Control mode" in the following page.
OIK057109L
Check Smart Cruise Control System
The message will appear when the
vehicle to vehicle distance control
system is not functioning normally.
Have the vehicle inspected by an
authorized HYUNDAI dealer.

06
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Lane changing
ODN8H069196
• 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 recognitionODN8H069198
• 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.