2023 HYUNDAI SONATA stop start

04
4-13
Information - Electronic Brake Force Distribution (EBD)
System Warning Light
When the ABS Warning Light is on
or both ABS and Parking Brake &
Brake Fluid Warning Lights are on, the
speedometer, odometer, or tripmeter may
not work. Also, the EPS Warning Light may illuminate and the steering effort may
increase or decrease. In this case, have the vehicle inspected by
an authorized HYUNDAI dealer as soon as possible.
Electronic Parking Brake
(EPB) Warning Light EPB
This warning light illuminates:
• When you place the Engine Start/Stop
button to the ON position.
- The EPB warning light illuminates for approximately 3 seconds and
then turns off.
• Whenever there is a malfunction with the EPB.
If this occurs, have the vehicle
inspected by an authorized HYUNDAI
dealer.
Information
The Electronic Parking Brake (EPB)
Warning Light may illuminate when
the Electronic Stability control (ESC)
Indicator Light comes on to indicates that
the ESC is not working properly (This does not indicate malfunction of the EPB). AUTO HOLD Indicator Light (if equipped)
This indicator light illuminates:
•
[White] When you activate the auto
hold system by pressing the AUTO
HOLD button.
• [Green] When you stop the vehicle
completely by depressing the brake
pedal with the auto hold system
activated.
• [Yellow] When there is a malfunction
with the auto hold system.
In this case, have the vehicle
inspected by an authorized HYUNDAI
dealer.
For more information, refer to “Auto
Hold” in chapter 6.
Electric Power Steering (EPS)
Warning Light
This warning light illuminates:
• When you place the ignition switch to the ON position.
- The Electric Power Steering Warning
light illuminates for about 3 seconds
and then goes off.
• Whenever there is a malfunction with the EPS.
If this occurs, have the vehicle
inspected by an authorized HYUNDAI
dealer.

Instrument Cluster
4-14
Malfunction Indicator Lamp (MIL)
This warning light illuminates:
• When you place the ignition switch to the ON position.
- The malfunction indicator light illuminates for about 3 seconds and
then goes off.
• Whenever there is a malfunction with
either the emission control system or
the engine or the vehicle powertrain.
If this occurs, have the vehicle
inspected by an authorized HYUNDAI
dealer.
NOTICE
• Driving with the Malfunction
Indicator Lamp (MIL) on may cause
damage to the emission control
system which could affect drivability
and/or fuel economy.
• If the enhanced engine protection
system becomes activated due to
lack of engine oil, engine power
will be limited. If such condition
continues repeatedly, the
Malfunction Indicator Lamp will
illuminate.
NOTICE
If the Malfunction Indicator Lamp
(MIL) illuminates, potential catalytic
converter damage is possible which
could result in loss of engine power.
In this case, have the vehicle inspected
by an authorized HYUNDAI dealer as soon as possible. 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 oil pressure is lowered due to
the lack of engine oil, the oil pressure
warning light turns on and the enhanced
engine protection system that limits the
engine output starts to work.
1. Drive carefully to the nearest safe
location 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.
According to circumstances, the oil
pressure warning light turns off and
the output limitation is released. Even
so, you should check the engine in a
safe place. Continued driving with the
warning light on may cause engine
failure.

04
4-15
Information
When engine oil pressure decreases due to insufficient engine oil, etc., the Engine Oil
Pressure warning light will illuminate. In
addition, the enhanced engine protection
system which limits engine power will
be activated. If the engine oil pressure is
restored, the Engine Oil Pressure warning
light and the enhanced engine protection
system will turn off. However, for gasoline 2.5 turbo engine, when the engine oil
pressure is restored, the warning light and
the enhanced engine protection system will
turn off after the engine is restarted.
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.
Master Warning Light
This indicator light illuminates:
When there is a malfunction in operation
in any of the following systems:
- Forward Collision-Avoidance Assist system malfunction (if equipped)
- Forward Collision-Avoidance Assist radar blocked (if equipped)
- Blind-Spot Collision Warning system malfunction (if equipped)
- Blind-Spot Collision Warning radar blocked (if equipped)
- High Beam Assist malfunction (if equipped)
- Lamp malfunction (if equipped)
- Smart Cruise Control malfunction (if equipped)
- Tire Pressure Monitoring System (TPMS) malfunction (if equipped)
To identify the details of the warning,
look at the LCD display.

04
4-17
Immobilizer Indicator Light
This indicator light illuminates:
•
When the vehicle detects the
immobilizer in the key with the
ignition switch in the ON position.
- At this time, you can start the engine.
- The indicator light goes off after starting the engine.
This indicator light blinks:
• When there is a malfunction with the
immobilizer system.
If this occurs, have the vehicle inspected
by an authorized HYUNDAI dealer.
Immobilizer Indicator Light
(with smart key) (if equipped)
This indicator light illuminates for up to 30 seconds:
When the vehicle detects the smart key
in the vehicle with the Engine Start/Stop
button in the ACC or ON position. - Once the smart key is detected, you can start the engine.
- The indicator light goes off after starting the engine.
This indicator light blinks for a few seconds:
When the smart key is not in the vehicle.
- If the smart key is not detected, you cannot start the engine.
This indicator light illuminates for 2 seconds and goes off:
If the smart key is in the vehicle and the
Engine Start/Stop button is ON, but the
vehicle cannot detect the smart key.
In this case, have the vehicle inspected
by an authorized HYUNDAI dealer.
This indicator light blinks:
When there is a malfunction with the
immobilizer system.
In this case, have the vehicle inspected
by an authorized HYUNDAI dealer.
Turn Signal Indicator Light
This indicator light blinks:
When you operate the turn signal
indicator stalk.
If any of the following occur, there may be
a malfunction with the turn signal system.
- The turn signal indicator light illuminates but does not blink
- The turn signal indicator light blinks rapidly
- The turn signal indicator light does not illuminate at all
If any of these conditions occur, have
your vehicle inspected by an authorized
HYUNDAI dealer.
Headlamp Warning Light (if equipped)
This warning light illuminates:
If one of the exterior bulbs (headlamp,
stop lamp, high mounted stop lamp) is
not operating properly. One of the bulbs
may need to be replaced. If the vehicle
is equipped with LED headlamps, have
the vehicle inspected by an authorized
HYUNDAI dealer.
Information
When replacing the bulb, use the same wattage bulb.
For more information, refer to "Light
bulbs" in chapter 8.

Instrument Cluster
4-18
High Beam Indicator Light
This indicator light illuminates:
•
When the headlights are on and in the high beam position.
• When the turn signal lever is pulled
into the Flash-to-Pass position.
Light ON Indicator Light
This indicator light illuminates:
When the tail lights or headlamps are on.
High Beam Assist indicator
light (if equipped)
This indicator light illuminates:
• When the High Beam is on with the
light switch in the AUTO light position.
• If your vehicle detects oncoming or
preceding vehicles, High Beam Assist
will switch the high beam to low beam
automatically.
For more information, refer to "High
Beam Assist (HBA)" in chapter 5. Forward Collision-Avoidance
Assist Warning Light (if equipped)
This warning light illuminates:
•
When you set the ignition switch or
Engine Start/Stop button to the ON position.
- It illuminates for approximately 3 seconds and then goes off.
• When there is a malfunction with
FCA. In this case, have your vehicle
inspected by an authorized dealer of
HYUNDAI.
For more information, refer to "Forward
Collision-Avoidance Assist (FCA)" in
chapter 6.
Lane Keeping Assist
Indicator Light (if equipped)
This indicator light illuminates:
• [Green] When you activate the lane
departure warning system by pressing
the LKA button and all of the system
operating conditions are satisfied.
• [White] When system operating
conditions are not satisfied or when
the sensor does not detect the lane line.
• [Yellow] When there is a malfunction
with Lane Keeping Assist system.
In this case, have your vehicle inspected
by an authorized HYUNDAI dealer.
For more information, refer to "Lane
Keeping Assist (LKA)" in chapter 6.

04
4-19
LCD Display Messages
Shift to P or N to start engine
(for smart key system)
This warning message is displayed if
you try to start the engine with the shift
button not in the P (Park) or N (Neutral) position.
Information
You can start the engine with the shift
button in the N (Neutral) position. But, for
your safety, we recommend that you start
the engine with the shift button in the P (Park) position.
Shift to P (for smart key system)
This message is displayed if you try to
turn off the engine without the shift
button in P (Park) position.
If this occurs, the Engine Start/Stop
button turns to the ACC position (If you
press the Engine Start/Stop button once
more, it will turn to the ON position).
Low key battery
(for smart key system)
This warning message is displayed if the
battery of the smart key is discharged
while changing the Engine Start/Stop
button to the OFF position.
Press brake pedal to start engine
(for smart key system)
This warning message is displayed if the
Engine Start/Stop button changes to
the ACC position twice by pressing the
button repeatedly without depressing
the brake pedal.
You can start the vehicle by depressing
the brake pedal and then pressing the
Engine Start/Stop button. 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.

Instrument Cluster
4-20
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.
Door, Hood, Trunk Open Indicator
ODN8049012
This warning is displayed if any door or
the hood or the liftgate is left open. The
warning will indicate which door is open
in the display.
CAUTION
Before driving the vehicle, you should
confirm that the door/hood/liftgate
is fully closed. Also, check there is no
door/hood/liftgate open warning light
or message displayed on the instrument
cluster.
Sunroof Open (if equipped)
ODN8049013
This warning is displayed if you turn off
the engine when the sunroof is open.
Close the sunroof securely before leaving
your vehicle.

Instrument Cluster
4-30
3. Door
ItemsExplanation
Auto Lock•
Disable : The auto door lock operation will be deactivated.
• Enable on Speed: All doors will be automatically locked when the
vehicle speed exceeds 15 km/h (9 mph).
• Enable on Shift: All doors will be automatically locked if the
automatic transmission shift button is pressed from the P (Park)
position to the R (Reverse), N (Neutral), or D (Drive) position. (Only
when the engine is running.)
Auto Unlock •
Disable : The auto door unlock operation will be canceled.
• On key out/Vehicle Off : All doors will be automatically unlocked
when the ignition key is removed from the ignition switch or the
Engine Start/Stop button is set to the OFF position.
• On Shift to P: All doors will be automatically unlocked if the
automatic transmission shift button is pressed to P (Park) position.
(Only when the engine is running.)
Two Press Unlock •
Off: The two press unlock function will be deactivated. Therefore,
all doors will unlock if the door unlock button is pressed.
• On: Only the driver’s door will unlock if the door unlock button is
pressed. When the door unlock button is pressed again within 4
seconds, the remaining doors will unlock.
Horn Feedback To activate or deactivate the horn feedback.
If the horn feedback is activated, after locking the door by pressing
the lock button on the remote key, and pressing it again within 4
seconds, the horn feedback sound will operate once to indicate that
all doors are locked (if equipped with remote key).
Smart Trunk To activate or deactivate the smart trunk.
For more information, refer to “Smart trunk” in chapter 5.
4. Lights
Items
Explanation
One Touch Turn Signal•
Off: The one touch turn signal function will be deactivated.
• 3, 5, 7 Flashes: The turn signal indicator will blink 3, 5, or 7 times
when the turn signal lever is moved slightly.
For more information, refer to “Lighting” in chapter 5.
Ambient Light
Brightness (if equipped) To adjust the brightness of the ambient light.
Ambient Light Color (if equipped) To select the ambient light color.
Headlight Delay To activate or deactivate the headlamp delay function.
For more information, refer to “Lighting” in chapter 5.
High Beam Assist To activate or deactivate the High Beam Assist (HBA) function.
For more information, refer to “High Beam Assist (HBA)” in
chapter 5.