Sensors Hyundai Sonata 2020 Owner's Guide
Page 383 of 537
06
6-99
Sensor to detect distance to the 
vehicle ahead (Front view camera 
and Front Radar)
Front view cameraFront view camera
ODN8A069024ODN8A069024
Front view camera
The front view camera is a sensor 
de
tecting 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 radarFront radar
ODN8A069023ODN8A069023
Front radar
The front radar is a sensor detecting 
v
ehicles 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.  
Page 408 of 537
While Driving6-124
Warning and System Control
Rear Cross-Traffic Collision Warning (RCCW) system
LeftLeft
ODN8H069036ODN8H069036
RightRight
ODN8H069037ODN8H069037
LeftLeft
ODN8069038ODN8069038
RightRight
ODN8069039ODN8069039
If the vehicle detected by the radar sensors approaches from the rear left/right side of 
your vehicle, the warning chime will sound, the warning light on the side view mirror 
will blink and a message will appear on the LCD display or infotainment system display. 
If the rear view monitor system is in activation, a message will also appear on the 
infotainment system screen.
The warning will stop when: - The detected vehicle moves out of the sensing area or
 - when the vehicle is right behind your vehicle or
 - when the vehicle is not approaching your vehicle or
 - when the other vehicle slows down.
 - The vehicle’s approaching speed is decreased.  
Page 411 of 537
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Detecting Sensors
ODN8069031LODN8069031L
The rear corner radars are the sensors 
inside the rear bumper for detecting the 
side and rear areas. Always keep the rear 
bumper clean for proper operation of the 
system.
 CAUTION
• The system may not work properly 
when the bumper has been 
damaged, or if the rear bumper has 
been replaced or repaired.
•  The system may turn off due to 
strong electromagnetic waves.
•  Always keep the sensors clean.
•  NEVER arbitrarily disassemble the 
sensor component nor apply any 
impact on the sensor component.
•  Be careful not to apply unnecessary 
force on the radar sensor or sensor 
cover. If the sensor is forcibly moved 
out of proper alignment, the system 
may not operate correctly. In this 
case, a warning message may not 
be displayed. Have the vehicle 
inspected by an authorized HYUNDAI 
dealer.
•  Do not apply foreign objects such as 
a bumper sticker or a bumper guard 
near the radar sensor or apply paint 
to the sensor area. Doing so may 
adversely affect the performance of 
the sensor.
Warning message
OIK057092LOIK057092L
Blind-Spot Collision Warning (BCW) 
system disabled. Radar blocked
This warning message may appear when:
One or bo
th of the sensors on the rear 
bumper is blocked by dirt or snow or a 
foreign object.
Driving in rural areas where the sensor 
does not detect another vehicle for an 
extended period of time.
When there is inclement weather such as 
heavy snow or rain.  
Page 412 of 537
While Driving6-128
If any of these conditions occur, the 
system will turn off automatically.
When BCW canceled warning message 
is displayed in the cluster, check to make 
sure that the rear bumper is free from 
any dirt or snow in the areas where the 
sensor is located. Remove any dirt, snow, 
or foreign material that could interfere 
with the radar sensors.
After any dirt or debris is removed, the 
system should operate normally after 
about 10 minutes of driving the vehicle.
If the system still does not operate 
normally have your vehicle inspected by 
an authorized HYUNDAI dealer.
 Information
Turn off BCW, BCA and RCCA system 
when a trailer or carrier is installed.
Deactivate BCW and BCA system 
by selecting “User Settings → Driver 
Assistance → Blind-Spot Safety → Off”
Deactivate RCCW and RCCA system 
by deselecting “User Settings → Driver 
Assistance → Parking Safety → Rear 
Cross-Traffic Safety”.
Type AType AType BType B
OAD058169LOAD058169LOTM058151LOTM058151L
Check Blind-Spot Collision Warning 
(BCW) system
If there is a problem with BCW system, 
a w
 arning message will appear. The 
system will turn off automatically. RCCW 
and RCCA will not operate also if BCW 
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.
•  When a trailer or carrier is installed.
•  The vehicle drives in inclement  weather such as heavy rain or snow.
•  The radar sensor is polluted with rain,  snow, mud, etc.
•  The rear bumper where the radar  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.  
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•  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 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.
•  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 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 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.
•  If the vehicle moves backward after  the vehicle is parked with a diagonal 
line  
Page 508 of 537
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Exterior Care
Exterior general caution
It is very important to follow the label 
directions when using any chemical 
cleaner or polish. Read all warning and 
caution statements that appear on the 
label.
High-pressure washing
•  When using high-pressure washers, make sure to maintain sufficient 
distance from the vehicle. Insufficient 
clearance or excessive pressure can 
lead to component damage or water 
penetration.
•  Do not spray the camera, 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.
•  Do not bring the nozzle tip close to  boots (rubber or plastic covers) or 
connectors as they may be damaged 
if they come into contact with high 
pressure water.
•  Do not use any high-pressure nozzles,  which induce either one-direct water 
stream or water swirling.
Protecting your vehicle’s finish
Washing
To help protect your vehicle’s finish from 
rus
 t and deterioration, wash it thoroughly 
and frequently at least once a month 
with lukewarm or cold water.
If you use your vehicle for off-road 
driving, you should wash it after each 
off-road trip. Pay special attention to the 
removal of any accumulation of salt, dirt, 
mud, and other foreign materials. Make 
sure the drain holes in the lower edges 
of the doors and rocker panels are kept 
clear and clean.
Insects, tar, tree sap, bird droppings, 
industrial pollution and similar deposits 
can damage your vehicle’s finish if not 
removed immediately.
Even prompt washing with plain water 
may not completely remove all these 
deposits. A mild soap, safe for use on 
painted surfaces, should be used.
After washing, rinse the vehicle 
thoroughly with lukewarm or cold water. 
Do not allow soap to dry on the finish.
 WARNING
After washing the vehicle, test the 
brakes while driving slowly to see 
if they have been affected by water 
before getting on the road. If braking 
performance is impaired, dry the 
brakes by applying them lightly while 
maintaining a slow forward speed.
NOTICE
•  Do not use strong soap, chemical 
detergents or hot water, and do not 
wash the vehicle in direct sunlight 
or when the body of the vehicle is 
warm.
•  Be careful when washing the side 
windows of your vehicle.
Especially, with high-pressure water, 
water may leak through the windows 
and wet the interior.
•  To prevent damage to the plastic 
parts, do not clean with chemical 
solvents or strong detergents.
APPEARANCE CARE  
Page 521 of 537
IndexI-2
A
Air bag warning labels ........................................................................\
................. 3-57
Air bags ........................................................................\
........................................ 3-37 Driver’s air bag ........................................................................\
....................... 3-39
Passenger’s front air bag ........................................................................\
......... 3-39
Side air bags ........................................................................\
............................ 3-40
Curtain air bags ........................................................................\
....................... 3-41
How does the air bags system operate?...................................\
........................ 3-42
SRS components and functions ....................................................................... 3-42
SRS warning light ........................................................................\
................... 3-43
What to expect after an air bag inflates ........................................................... 3-46
Occupant Classification System (OCS) .......................................................... 3-47
Why didn’t my air bag go off in a collision .................................................... 3-52
Air bag collision sensors ........................................................................\
......... 3-53
Air bag inflation conditions ........................................................................\
.... 3-54
Air bag non-inflation conditions ..................................................................... 3-54
SRS Care ........................................................................\
................................. 3-56
Additional safety precautions ........................................................................\
.. 3-57
Air bag warning labels ........................................................................\
............ 3-57
Air cleaner ........................................................................\
................................... 8-26
Air cleaner filter replacement ........................................................................\
...... 8-26
Air conditioning system specification ................................................................. 2-10
Antenna ................................................................\
.............................................. 5-152
Anti-lock Brake System (ABS) ........................................................................\
... 6-27
Appearance care........................................................................\
........................... 8-61 Exterior care ........................................................................\
............................ 8-61
Interior care ........................................................................\
............................. 8-65
Armrest ................................................................\
................................................ 3-11
Audio / Video / Navigation system .................................................................... 5-154
Auto defogging system ........................................................................\
.............. 5-141
AUTO headlamp position ........................................................................\
............ 5-74
Auto LOCK - Enable on shift ........................................................................\
...... 5-34
Auto LOCK - Enable on speed ........................................................................\
.... 5-34
Auto UNLOCK - Enable on shift ........................................................................\
 5-34
Auto UNLOCK -Air bag deployment ................................................................. 5-34
Automatic climate control system ..................................................................... 5-127
Automatic heating and air conditioning ........................................................ 5-128
Manual temperature control mode ................................................................ 5-129