HYUNDAI SONATA HYBRID 2023 Owners Manual

Instrument Cluster
4-8
You can change the temperature unit
from °F to °C or °C to °F in the User
Settings mode in the cluster:
-Go to User Settings Mode → Other →
Temperature Unit.
For vehicles equipped with Automatic
Climate Control, you can also:
- Press and hold the AUTO and OFF
buttons on the climate control unit for
3 seconds
Both the temperature unit on the cluster
LCD display and climate control screen
will change.
Odometer

04
4-9
Information
• If the vehicle is not on level ground or
the battery power has been interrupted,
the range function may not operate
correctly.
• The range may differ from the actual
driving distance as it is only an estimate
of the available driving range for the
vehicle and driving conditions.
• The trip computer may not register
additional fuel if less than 1.6 gallon (6
liters) of fuel are added to the vehicle.
• The range may vary significantly based
on driving conditions, driving habits,
and condition of the vehicle.
Transmission Shift Indicator
(if equipped)
Automatic transmission shift
indicator

Instrument Cluster
4-10
Warning and Indicator Lights
Information
Make sure that all warning lights are OFF
after starting the engine. If any light is still
ON, this indicates a situation that needs
attention.
Air Bag Warning Light
This warning light illuminates:
• When you place the Engine Start/Stop
button to the ON position.
-The air bag warning light illuminates
for about 6 seconds and then turns
off when all checks have been
performed
• The air bag warning light will remain
illuminated if there is a malfunction
with the Safety Restraint System (SRS)
air bag operation.
In this case, have the vehicle
inspected by an authorized HYUNDAI
dealer.
Seat Belt Warning Light
This warning light informs the driver that the seat belt is not fastened.
For more information, refer to “Seat
Belts” in chapter 3.
Parking Brake & Brake Fluid
Warning Light
This warning light illuminates:
• When you place the Engine Start/Stop
button to the ON position.
-The parking brake light illuminates
for about 3 seconds and will then
turn off once the parking brake is
released.
• Whenever the parking brake is
applied.
• Whenever the brake fluid level in the
reservoir is low.
-If the warning light illuminates
with the parking brake released, it
indicates that the brake fluid level in
the reservoir is low.
• Whenever the regenerative brake
does not operate.
If the brake fluid level in the reservoir is
low:
1. Drive carefully to the nearest safe
location and stop your vehicle.
2. With the engine stopped, check
the brake fluid level immediately
and add fluid as required (For more
information, refer to "Brake Fluid" in
chapter 8). After adding brake fluid,
check all brake components for fluid
leaks. If a brake fluid leak is found, or
if the warning light remains on, or if
the brakes do not operate properly, do
not drive the vehicle. Have the vehicle
inspected by an authorized HYUNDAI
dealer.

04
4-11
Dual-diagonal braking system
Your vehicle is equipped with dual-
diagonal braking system. This means you
still have braking on two wheels even if
one of the dual systems should fail.
With only one of the dual systems
working, more than normal pedal travel
and greater pedal pressure is required to
stop the vehicle.
If the brakes fail while you are driving,
shift to a lower gear for additional engine
braking and stop the vehicle as soon as it
is safe to do so.
WARNING
Parking Brake & Brake Fluid Warning
Light
Driving the vehicle with a warning light
ON is dangerous. If the Parking Brake &
Brake Fluid Warning Light illuminates
with the parking brake released, it
indicates that the brake fluid level is
low.
In this case, have the vehicle inspected
by an authorized HYUNDAI dealer.
Regenerative brake warning
light
(yellow)
This warning light illuminates:
When the regenerative brake does not
operate and the brake does not perform
well. This causes the Brake Warning
light (red) and Regenerative Brake
Warning Light (yellow) to illuminate
simultaneously.
If this occurs, drive safely and have
the vehicle inspected by an authorized
HYUNDAI dealer.
The operation of the brake pedal may
be more difficult than normal and the
braking distance may increase.
Anti-lock Brake System (ABS)
Warning Light
This warning light illuminates:
• When you place the Engine Start/Stop
button to the ON position.
-The ABS warning light illuminates
for about 3 seconds and then turns
off.
• Whenever there is a malfunction with
the ABS.
Note that the hydraulic braking
system will still be operational even if
there is a malfunction with the ABS.
Electronic Brake Force
Distribution (EBD) System
Warning Light
These two warning lights illuminate at the same time while driving:
When the ABS and regular brake system
may not work normally.
In this case, have the vehicle inspected
by an authorized HYUNDAI dealer.
WARNING
Electronic Brake Force Distribution
(EBD) System Warning Light
When both ABS and Parking Brake &
Brake Fluid Warning Lights are on, the
brake system will not work normally
and you may experience an unexpected
and dangerous situation during sudden
braking.
In this case, avoid high speed driving
and abrupt braking.
Have the vehicle inspected by an
authorized HYUNDAI dealer as soon as
possible.

Instrument Cluster
4-12
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 MDPS 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 indicate 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.
Motor Driven Power Steering
(MDPS) Warning Light
This warning light illuminates:
• When you place the Engine Start/Stop
button to the ON position.
- The Motor Driven Power Steering
Warning light illuminates for about 3
seconds and then goes off.
• Whenever there is a malfunction with
the MDPS.
If this occurs, have the vehicle
inspected by an authorized HYUNDAI
dealer.

04
4-13
Malfunction Indicator Lamp
(MIL)
This warning light illuminates:
• When you place the Engine Start/Stop
button 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 engine oil pressure is low:
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.
Continued driving with the warning
light on may cause engine failure.
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.

Instrument Cluster
4-14
NOTICE
If the engine is not turned OFF
immediately after the Engine Oil
Pressure Warning Light is illuminated,
severe damage could occur.
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.
Service warning light
This warning light illuminates:
• When you set the ignition switch or
the Engine Start/Stop button to the
ON position.
-The service warning light illuminates
for approximately 3 seconds and
then turns off when all checks have
been performed.
• When there is a problem with the
hybrid vehicle control system or
hardware.
When the warning light illuminates while
driving, or does not go OFF after starting
the vehicle, have the vehicle inspected
by an authorized HYUNDAI dealer.
Exhaust system (GPF)
warning light
• This warning light illuminates, when
accumulated soot reaches a certain
amount.
• When this warning light illuminates, it
may turn off after driving the vehicle
at more than 50mph (80km/h) for
about 30 minutes (above 3rd gear
with 1500 - 4000 engine rpm).
If this warning light blinks in spite
of the procedure (at this time LCD
warning message will be displayed),
have the GPF system checked by an
authorized HYUNDAI dealer.
NOTICE
If you continue to drive with the GPF
warning light blinking for a long time,
the GPF system can be damaged and
fuel consumption can worsen.

04
4-15
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-Avoidance Assist
Warning malfunction (if equipped)
-Blind-Spot Collision-Avoidance Assist
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.
Low Tire Pressure Warning
Light (if equipped)
This warning light illuminates:
• When you place the Engine Start/Stop
button to the ON position.
- It illuminates for approximately 3
seconds and then goes off.
• When one or more of your tires are
significantly underinflated. (The
location of the underinflated tires is
displayed on the LCD display.)
For more information, refer to "Tire
Pressure Monitoring System (TPMS)" in
chapter 7. This warning light remains ON after
blinking for approximately 60 seconds, or
repeatedly blinks ON and OFF in 3 second
intervals:
When there is a malfunction with the
TPMS.
In this case, have the vehicle inspected
by an authorized HYUNDAI dealer as
soon as possible.
For more information, refer to "Tire
Pressure Monitoring System (TPMS)" in
chapter 7.
WARNING
Safe Stopping
• The TPMS cannot alert you to severe
and sudden tire damage caused by
external factors.
• If you notice any vehicle instability,
immediately take your foot off the
accelerator pedal, apply the brakes
gradually with light force, and slowly
move to a safe position off the road.
Electronic Stability Control
(ESC) Indicator Light
This indicator light illuminates:
• When you place the Engine Start/Stop
button to the ON position.
-
The Electronic Stability Control
indicator light illuminates for about
3 seconds and then goes off.
• Whenever there is a malfunction with
the ESC system.
If this occurs, have the vehicle
inspected by an authorized HYUNDAI
dealer.
This indicator light blinks:
While the ESC is operating.
For more information, refer to
“Electronic Stability Control (ESC)” in
chapter 6.

Instrument Cluster
4-16
Electronic Stability Control
(ESC) OFF Indicator Light
This indicator light illuminates:
• When you place the Engine Start/Stop
button to the ON position.
-It illuminates for approximately 3
seconds and then goes off.
• When you deactivate the ESC system
by pressing the ESC OFF button.
For more information, refer to
“Electronic Stability Control (ESC)” in
chapter 6.
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.

04
4-17
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.
Headlight Warning Light
(if equipped)
This warning light illuminates:
• When you place the Engine Start/Stop
button to the ON position.
- The LED headlight warning light
illuminates for approximately 3
seconds and then goes off.
• Whenever there is a malfunction with
the LED headlight.
If this occurs, have the vehicle
inspected by an authorized HYUNDAI
dealer.
This warning light blinks:
Whenever there is a malfunction with
a LED headlight related part. If this
occurs, have the vehicle inspected by an
authorized HYUNDAI dealer.
NOTICE
Continuous driving with the LED
Headlight warning light on or blinking can
reduce LED headlight life.
Ready indicator
This indicator illuminates:
When the vehicle is ready to be driven.
- ON : Normal driving is possible.
-OFF : Normal driving is not possible,
or a problem has occurred.
-Blinking : Emergency driving.
When the ready indicator goes OFF
or blinks, there is a problem with the
system. If this occurs, have the vehicle
inspected by an authorized HYUNDAI
dealer.
EV mode indicator
This indicator illuminates:
When the vehicle is driven by the electric
motor.