2020 Hyundai Sonata charging

03
3-47
Occupant Classification System
(OCS)
ODN8A039038ODN8A039038
Your vehicle is equipped with an
Occupant Classification System (OCS) in
the front passenger’s seat.
Main components of the Occupant
Classification System
• A detection device located within the front passenger seat cushion.
• Electronic system to determine whether the passenger air bag
systems should be activated or
deactivated.
• An indicator light located on the instrument panel which illuminates
the words “PASSENGER AIR BAG OFF”
indicating the front passenger air bag
system is deactivated.
• The instrument panel air bag indicator light is interconnected with the OCS.
The OCS is designed to help detect
the presence of a properly-seated
front passenger and determine if the
passenger’s front air bag should be
enabled (may inflate) or not.
The purpose is to help reduce the risk
of injury or death from an inflating air
bag to certain front passenger seat
occupants, such as children, by requiring
the air bag to be automatically turned
OFF. For example, if a child restraint of the
type specified in the regulations is on the
seat, the occupant classification sensor
can detect it and cause the air bag to
turn OFF.
Front passenger seat adult occupants
who are properly seated and wearing the
seat belt properly, should not cause the
passenger air bag to be automatically
turned OFF. For small adults it may be
turned OFF, however, if the occupant
does not sit in the seat properly (for
example, by not sitting upright, by sitting
on the edge of the seat, or by otherwise
being out of position), this could cause
the sensor to turn the air bag OFF.
You will find the “PASSENGER AIR BAG
OFF” indicator on the center fascia
panel. This system detects the conditions
1-4 in the following table and activates or
deactivates the front passenger air bag
based on these conditions.
Always be sure that you and all vehicle
occupants are seated properly and
wearing the seat belt properly for the
most effective protection by the air bag
and the seat belt.
The OCS may not function properly if the
passenger takes actions which can affect
the classification system. These include:
• Failing to sit in an upright position.
• Leaning against the door or center
console.
• Sitting towards the sides of the front of the seat.
• Putting their legs on the dashboard or resting them on other locations which
reduce the passenger weight on the
front seat.
• Wearing the seat belt improperly.
• Reclining the seatback.
• Wearing a thick cloth like ski wear or hip protection wear.
• Putting an additional thick cushion on the seat.
• Putting electrical devices (e.g. notebook, satellite radio) on the seat
with inverter charging.

04
4-11
Charging System Warning
Light
When this warning light illuminates while
the engine is running, the battery is not
being charged. Immediately turn OFF
all electrical accessories. Try not to use
electrically operated controls, such as
the power windows. Keep the engine
running.
Have the vehicle inspected by an
authorized HYUNDAI dealer as soon as
possible.
Engine Oil Pressure Warning
Light
This warning light illuminates:
When the engine oil pressure is low.
If the engine oil pressure is low:
1. Drive carefully to the nearest safe loca
tion and stop your vehicle.
2. Turn the engine off and check the engine oil level (For more
information, refer to "Engine Oil" in
chapter 8). If the level is low, add oil
as required.
If the warning light remains on after
adding oil or if oil is not available, have
the vehicle inspected by an authorized
HYUNDAI dealer as soon as possible.
NOTICE
• If the engine is not turned OFF
immediately after the Engine
Oil Pressure Warning Light is
illuminated, severe damage could
occur.
• If the warning light stays on while the
engine is running, it indicates that
there may be serious engine damage
or malfunction. In this case:
1. Stop the vehicle as soon as it is safe to do so.
2. Turn off the engine and check the oil level. If the oil level is low, fill
the engine oil to the proper level.
3. Start the engine again. If the warning light stays on after the
engine has started, turn the
engine off immediately. In this
case, have the vehicle inspected
by an authorized HYUNDAI dealer.
Low Fuel Level Warning Light
This warning light illuminates:
When the fuel tank is nearly empty. Add
fuel as soon as possible.
NOTICE
Driving with the Low Fuel Level warning
light on or with the fuel level below "E"
can cause the engine to misfire and
damage the catalytic converter.

Instrument Cluster4-16
Key not in vehicle
(for smart key system)
This warning message is displayed if the
smart key is not in the vehicle when you
press the Engine Start/Stop button.
When attempting to start the vehicle,
always have the smart key with you.
Key not detected
(for smart key system)
This warning message is displayed if the
smart key is not detected when you press
the Engine Start/Stop button.
Press START button again
(for smart key system)
This message is displayed if you were
unable to start the vehicle when the
Engine Start/Stop button was pressed.
If this occurs, attempt to start the engine
by pressing the Engine Start/Stop button
again.
If the warning message appears each
time you press the Engine Start/Stop
button, have your vehicle inspected by
an authorized HYUNDAI dealer.
Battery discharging due to external
electrical devices (if equipped)
This message is displayed if the battery
voltage is weak due to any non-factory
electrical accessories (ex. dashboard
camera) while parking. Be careful that
the battery is not discharged.
If the warning message appears after
removing the non-factory electrical
accessories, have the vehicle inspected
by an authorized HYUNDAI dealer.
Press START button with key
(for smart key system)
This warning message is displayed if you
press the Engine Start/Stop button while
the warning message "Key not detected"
is displayed.
At this time, the immobilizer indicator
light blinks.
Check BRAKE SWITCH fuse
(for smart key system)
This warning message is displayed if the
brake switch fuse is disconnected.
You need to replace the fuse with a new
one before starting the engine.
If that is not possible, you can start the
engine by pressing the Engine Start/
Stop button for 10 seconds in the ACC
position.

Instrument Cluster4-28
5. Sound
Items Explanation
Cluster Voice
Guidance V
olumeTo adjust the cluster voice guidance volume.
Welcome sound To activate or deactivate the welcome sound.
6. Convenience
Items
Explanation
Seat Easy Access •
Off: The seat easy access function is deactivated.
• Normal/Extended: When you turn off the engine, the driver’s seat will automatically move rearward short (Normal) or long
(Extended) for you to enter or exit the vehicle more comfortably.
For more information, refer to “Driver Position Memory System”
in chapter 5.
Rear Occupant Alert To activate or deactivate the rear occupant alert.
Welcome Light • On driver approach: The welcome light turns on automatically
when the vehicle is approached with the smart key.
For more information, refer to ‘’Welcome System’’ in chapter 5.
Wireless Charging
System To activate or deactivate the wireless charging system in the front
seat.
For more information, refer to “Wireless cellular phone charging
system” in chapter 5.
Wiper/Lights Display To activate or deactivate the Wiper/ Light mode.
When activated, the LCD display shows the selected Wiper/Light
mode whenever you changed the mode.
Gear Position Pop-
up To activate or deactivate the gear position pop-up.
When activated, the gear position will be displayed on the LCD
display.
Vehicle Auto-Shut
Off The feature is to turn off the vehicle automatically after a certain
amount of time (30 or 60 mins), to prevent CO toxication when the
vehicle is on and parked in a garage for a long time.
Select the time to delay automatic shut off when the vehicle is
parked with the engine on.

04
4-43
5. Sound
ItemsExplanation
Cluster Voice
Guidance V
olumeTo adjust the cluster voice guidance volume.
Welcome sound To activate or deactivate the welcome sound.
6. Convenience
Items
Explanation
Seat Easy Access • Off: The sea
t easy access function is deactivated.
• Normal/Extended: When you turn off the engine, the driver’s seat will automatically move rearward short (Normal) or long
(Extended) for you to enter or exit the vehicle more comfortably.
For more information, refer to “Driver Position Memory System”
in chapter 5.
Rear Occupant Alert To activate or deactivate the rear occupant alert.
Welcome Light • On driver approach: The welcome light turns on automatically
when the vehicle is approached with the smart key.
For more information, refer to ‘’Welcome System’’ in chapter 5.
Wireless Charging
System To activate or deactivate the wireless charging system in the front
seat.
For more information, refer to “Wireless cellular phone charging
system” in chapter 5.
Wiper/Lights Display To activate or deactivate the Wiper/ Light mode.
When activated, the LCD display shows the selected Wiper/Light
mode whenever you changed the mode.
Gear Position Pop-
up To activate or deactivate the gear position pop-up.
When activated, the gear position will be displayed on the LCD
display.
Vehicle Auto-Shut
Off The feature is to turn off the vehicle automatically after a certain
amount of time (30 or 60 mins), to prevent CO toxication when the
vehicle is on and parked in a garage for a long time.
Select the time to delay automatic shut off when the vehicle is
parked with the engine on.

5
Automatic Climate Control System ........................................................... 5-127Automatic Heating and Air Conditioning ............................................................ 5-128
Manual Temperature Control Mode ..................................................................... 5-129
System Operation ........................................................................\
.......................... 5-135
System Maintenance ........................................................................\
....................5-136
Windshield Defrosting and Defogging ......................................................5-138Manual Climate Control System......................................................................\
.....5-138
Automatic Climate Control System......................................................................\
5-139
Defogging Logic ........................................................................\
.......................... 5-140
Auto Defogging System (Only for Automatic Climate Control System) ............ 5-141
Defroster .....................................................................\
........................................... 5-142
Climate Control Additional Features .........................................................5-143Sunroof Inside Air Recirculation ........................................................................\
.. 5-143
Automatic Ventilation ........................................................................\
................... 5-143
Storage Compartment ........................................................................\
........5-144Center Console Storage ........................................................................\
................5-144
Glove Box ........................................................................\
.......................................5-144
Interior Features ........................................................................\
..................5-145Cup Holder ........................................................................\
..................................... 5-145
Sunvisor ..................................................................\
...............................................5-146
Power Outlet ........................................................................\
..................................5-146
USB Charger ........................................................................\
................................. 5-147
Wireless Cellular Phone Charging System ..........................................................5-148
Clock ..................................................................\
....................................................5-150
Clothes Hanger ........................................................................\
..............................5-150
Floor Mat Anchor(S) ........................................................................\
.......................5-151
Infotainment System ........................................................................\
.......... 5-152USB And Ipod® Port ........................................................................\
....................... 5-152
Antenna ...................................................................\
............................................... 5-152
Steering Wheel Audio Control ........................................................................\
...... 5-153
Bluetooth® Wireless Technology Hands-Free ..................................................... 5-154
Audio (Display Audio) / Video / Navigation System (AVN) ................................ 5-154
5. Convenient Features

Convenient Features5-16
Digital key (smartphone)
ODN8A059129ODN8A059129
ODN8A059240ODN8A059240
Hyundai Digital Key (Smartphone)
Pairing
1. Turn the vehicle on with the Smart key and mak
e sure to keep the smart key
inside the vehicle during digital key
registration.
2. Register your Digital key from the vehicle user setting menu as follows.

 With Navigation screen :
From the infotainment screen menu,
go to [Setup] - [Vehicle] - [Digital Key]
- [Smart Phone Key] then select the
[Save] from submenu.

 Without navigation screen :
From cluster menu, go to [Digital Key]
- [Smart Phone Key] and select [Save].
Information
The [Save] button will be disabled if the
digital key (Smartphone key) is already
saved.
Please refer to “Digital Key Delete” in this
manual and follow the digital key delete
procedure in your car before Digital key
save.
Please refer to the ‘Tutorial’ on your
Digital key app and delete the previous
saved key in your smartphone before save.
3. Select the vehicle to save on your
Digital key application and activate
the save mode.

 Save mode is available only on
the vehicle owner’s Digital key
application.
4. Place the backside of smartphone onto the wireless charging pad(in-
vehicle authentication pad).
The saving process will begin
automatically.
5. Once the digital key save is complete, a message will be shown on the
infotainment screen or cluster.
6. Remove the smartphone from the pad and complete the saving process.
ODN8059267ODN8059267
[A] : Wireless Charging Pad (In-vehicle Authentication
Pad)

05
5-19
After unlock the door or start up the
vehicle with digital key, even though
the driver tries to lock the doors by the
central door lock switch, the door lock
will be once locked and immediately
released at the moment of door closed.
Start-up with Digital Key
1. After placing your registered smartphone on
to the interior
authentication pad (wireless charger),
step on the brake and press the
Engine Start/Stop button.
2. After start-up, the digital key data will be automatically updated. It
takes 5 to 20 seconds, after that,
the smartphone can be go into the
wireless charging mode automatically.
Once the engine started, you can
remove the smartphone from the pad.
ODN8059267ODN8059267
[A] : Wireless Charging Pad (In-vehicle Authentication
Pad)
Information
After reconnecting the vehicle battery
power supply or charging the battery, it
may take time to operate due to remote
renewal of security information. When you
lock or unlock the door with NFC, please
contact and hold your smartphone on the
door handle until it works. The solution allows for offline mode usage
when the mobile data connection of the
smartphone is weak. When you are in the
place where the mobile data connection
of your smartphone is available and
place your smartphone on the interior
authentication pad (wireless charger) and
start up your vehicle or contact the digital
key on the door handle to lock or unlock
the door, the remote renewal of security
information starts automatically. Even
though the engine is turned on, please
wait until the remote renewal process
is completed and wireless charger is
converted to charging mode.
CAUTION
The engine can be turned on if the
registered smartphone or card key is
placed on the interior authentication
pad (wireless charger). Do not leave
unsupervised children or people who
are not aware of the system since it
can result in serious injury or death.
Always have the registered digital key
(smartphone) or card key with you to
prevent vehicle theft when leaving the
vehicle.
For more information, refer to the
Engine Start/Stop button in chapter 6.