2023 HYUNDAI SONATA start stop button

Convenience Features
5-134
NOTICE
To prevent damage to the Power
Outlets: • Use the power outlet only when the
engine is running and remove the
accessory plug after use. Using the
accessory plug for prolonged periods
of time with the engine off could
cause the battery to discharge.
• Only use 12V electric accessories
which are less than 180 W in electric
capacity.
• Adjust the air-conditioner or heater
to the lowest operating level when
using the power outlet.
• Close the cover when not in use.
• Some electronic devices can
cause electronic interference
when plugged into a vehicle’s
power outlet. These devices may
cause excessive audio static and
malfunctions in other electronic
systems or devices used in your
vehicle.
• Push the plug in as far as it will go. If
good contact is not made, the plug
may overheat and the fuse may open.
• Plug in battery equipped electrical/
electronic devices with reverse
current protection. The current
from the battery may flow into the
vehicle’s electrical/electronic system
and cause system malfunction.
USB Charger (if equipped)
„„Front
ODN8059222
„„Rear
ODN8059296L
The USB charger is designed to recharge
batteries of small size electrical devices using a USB cable.
The electrical devices can be recharged
when the ignition switch or the Engine
Start/Stop button is in the ACC, ON or
START position.
The battery charging state may be
monitored on the electrical device.
Disconnect the USB cable from the USB
port after use. • A smart phone or a tablet PC may
get warmer during the re-charging
process. It does not indicate any
malfunction with the charging system.
• A smart phone or a tablet PC, which
adopts a different re-charging
method, may not be properly re-
charged. In this case, use an exclusive
charger of your device.
• The charging terminal is only to
recharge a device. Do not use the
charging terminal either to turn ON an
audio or to play media on the AVN.

6
6. While Driving
Before Driving ................................................................................................ 6-5
Before Entering the Vehicle ..................................................................................... 6-5
Before Starting ......................................................................................................... 6-5
Ignition Switch ............................................................................................... 6-6
Key Ignition Switch .................................................................................................. 6-6
Engine Start/Stop Button ........................................................................................ 6-9
Remote Start ............................................................................................................ 6-12
Automatic Transmission ............................................................................... 6-13
Automatic Transmission Operation ........................................................................ 6-13
Parking ..................................................................................................................... 6-16
LCD Display Message .............................................................................................. 6-17
Good Driving Practices .......................................................................................... 6-18
Paddle Shifter (Manual Shift Mode) ...................................................................... 6-19
Dual Clutch Transmission ........................................................................... 6-20
Dual Clutch Transmission Operation .................................................................... 6-20
Parking .................................................................................................................... 6-27
LCD Display Message (Button Type) ..................................................................... 6-27
Good Driving Practices ......................................................................................... 6-29
Brake System ................................................................................................ 6-30
Power Brakes .......................................................................................................... 6-30
Disc Brakes Wear Indicator.................................................................................... 6-30
Electronic Parking Brake (EPB) ............................................................................... 6-31
Auto Hold ................................................................................................................ 6-34
Anti-Lock Brake System (ABS) ............................................................................... 6-37
Electronic Stability Control (ESC) ......................................................................... 6-39
Vehicle Stability Management (VSM) .................................................................... 6-41
Hill-Start Assist Control (HAC) ............................................................................... 6-42
Good Braking Practices ......................................................................................... 6-42
Launch Control ............................................................................................. 6-43
Launch Control Operation and Release ................................................................6-43
Launch Control Limitation ..................................................................................... 6-44
Drive Mode Integrated Control System .....................................................6-45
Drive Mode ............................................................................................................. 6-45
Vehicle Characteristic ............................................................................................ 6-49

06
6-9
Engine Start/Stop Button (if equipped)
ODN8069001
Whenever the front door is opened, the
Engine Start/Stop button will illuminate
and will go off 30 seconds after the door is closed.
WARNING
To reduce risk of serious injury or death,
NEVER allow children or any person
who is unfamiliar with the vehicle to
touch the Engine Start/Stop button or
related parts. Unexpected and sudden
vehicle movement can occur.
WARNING
To turn the engine off in an emergency:
Press and hold the Engine Start/Stop
button for more than two seconds OR
rapidly press and release the Engine
Start/Stop button three times (within
three seconds).
If the vehicle is still moving, you can
restart the engine without depressing
the brake pedal by pressing the Engine
Start/Stop button with the shift button
in the N (Neutral) position.
WARNING
• NEVER press the Engine Start/Stop
button while the vehicle is in motion
except in an emergency. This will
result in the engine turning off and
loss of power assist for the steering
and brake systems.
This may lead to loss of directional
control and braking function, which
could cause an accident.
• Before leaving the driver's seat,
always make sure the shift button
is in the P (Park) position, set the
parking brake, press the Engine
Start/Stop button to the OFF
position, and take the Smart Key with
you. Unexpected vehicle movement
may occur if these precautions are
not followed.
• NEVER reach through the steering
wheel for the Engine Start/Stop
button or any other control while the
vehicle is in motion. The presence
of your hand or arm in this area
may cause a loss of vehicle control
resulting in an accident.

While Driving
6-10
Engine Stop/Start button positions
Button
Position Action Notice
OFFTo turn off the engine, press the
Engine Start/Stop button with shift
button in P (Park).
When you press the Engine Start/
Stop button without the shift
button in P (Park), the Engine Start/
Stop button does not turn to the
OFF position, but turns to the ACC position.
ACC Press the Engine Start/Stop button
when the button is in the OFF
position without depressing the
brake pedal.
Electrical accessories are usable. If you leave the Engine Start/Stop
button in the ACC position for more
than one hour, the battery power will
turn off automatically to prevent the
battery from discharging.
ON Press the Engine Start/Stop button
while it is in the ACC position
without depressing the brake pedal.
The warning lights can be checked
before the engine is started. Do not leave the Engine Start/Stop
button in the ON position when the
engine is not running to prevent the
battery from discharging.
START To start the engine, depress the
brake pedal and press the Engine
Start/Stop button with the shift
button in the P (Park) or in the N
(Neutral) position.
For your safety, start the engine
with the shift button in the P (Park) position. If you press the Engine Start/Stop
button without depressing the brake
pedal, the engine does not start
and the Engine Start/Stop button
changes as follows:
OFF → ACC → ON → OFF or ACC
However, the engine may start if you
depress the brake pedal within 0.5
second after pressing the Engine
Start/Stop button from the OFF position.

06
6-11
Starting the engine
WARNING
• Always wear appropriate shoes when
operating your vehicle.
Unsuitable shoes, such as high heels,
ski boots, sandals, flip-flops, etc.,
may interfere with your ability to use
the brake and accelerator pedals.
• Do not start the vehicle with the
accelerator pedal depressed. The
vehicle can move and lead to an
accident.
• Wait until the engine rpm is normal.
The vehicle may suddenly move if
the brake pedal is released when the rpm is high.
Information
• The engine will start by pressing the Engine Start/Stop button, only when the smart key is in the vehicle.
• Even if the smart key is in the vehicle,
if it is far away from the driver, the engine may not start.
• When the Engine Start/Stop button
is in the ACC or ON position, if any
door is open, the system checks for the
smart key. If the smart key is not in the vehicle, the “
” indicator will blink
and the warning "Key not in vehicle"
will come on and if all doors are closed,
the chime will also sound for about 5 seconds. Keep the smart key in the
vehicle when using the ACC position or if the vehicle engine is ON.
1. Always carry the smart key with you.
2. Make sure the parking brake is applied.
3. Make sure the gear is in P (Park).
4. Depress the brake pedal.
5. Press the Engine Start/Stop button.
Information
• Do not wait for the engine to warm up
while the vehicle remains stationary. Start driving at moderate engine
speeds. (Aggressive accelerating and decelerating should be avoided.)
• Always start the vehicle with your foot
on the brake pedal. Do not depress the
accelerator while starting the vehicle.
Do not rev the engine while warming it up.
NOTICE
To prevent damage to the vehicle: • If the engine stalls while you are in
motion, do not attempt to move the
shift button to the P (Park) position.
If traffic and road conditions permit,
you may put the shift button in the N
(Neutral) position while the vehicle
is still moving and press the Engine
Start/Stop button in an attempt to
restart the engine.
• Do not push or tow your vehicle to
start the engine.

While Driving
6-12
NOTICE
To prevent damage to the vehicle:
When the stop lamp switch fuse is
blown, you can't start the engine
normally. Replace the fuse with a new
one. If you are not able to replace
the fuse, you can start the engine by
pressing and holding the Engine Start/
Stop button for 10 seconds with the
Engine Start/Stop button in the ACC position.
Do not press the Engine Start/Stop
button for more than 10 seconds except
when the stop lamp switch fuse is
blown.
For your safety always depress the
brake pedal before starting the engine.
ODN8069002
Information
If the smart key battery is weak or the
smart key does not work correctly, you
can start the engine by pressing the Engine Start/Stop button with the smart key in
the direction of the picture above.
Remote Start
ODN8069003
ODN8069004
You can start the vehicle using the
Remote Start button of the smart key.
To start the vehicle remotely:• Lock the doors by pressing the door
lock button within 10 m (32 feet)
distance from the vehicle.
• Press the remote start button for over
2 seconds within 4 seconds after
locking the doors and the hazard
warning will blink.
To turn off the remote start function,
press the remote start button once.
In case of the manual operation,
the climate control system will be
maintained even when the engine is
turned OFF. However, the automatic
operation is set to 22°C (72°F).

06
6-15
D (Drive)
This is the normal driving position. The
transmission will automatically shift
through a 8-gear sequence, providing
the best fuel economy and power.
To start the vehicle forward, push the D
(Drive) button by depressing the brake
pedal with the engine ON. Then depress
the accelerator pedal smoothly.
For extra power when passing another
vehicle or driving uphill, depress the
accelerator fully. The transmission will
automatically downshift to the next
lower gear (or gears, as appropriate).
When the vehicle is stopped in D (Drive)
position, if you open the driver's door
with the seat belt unfastened, the gear is
shifted to P (Park) position automatically.
However when the vehicle moves in D
(Drive) position, if you open the driver's
door with the seat belt unfastened, the
gear may not shift to P (Park) position
automatically to protect the automatic
transmission.
Shift-lock system
For your safety, the automatic
transmission has a shift-lock system
which prevents shifting the gear from
P (Park) or N (Neutral) to R (Reverse)
or D (Drive) unless the brake pedal is
depressed.
To shift the gear from P (Park) or N
(Neutral) to R (Reverse) or D (Drive):
1. Depress and hold the brake pedal.
2. Start the engine or place the ignition switch in the ON position.
3. Depress the brake pedal and push the R (Reverse) or D (Drive) button. Stay in N (Neutral) position when engine is Off
ODN8069006
ODN8069008
If you want to keep the N (Neutral)
position after the engine is OFF, do the
following.
1. Deactivate the AUTO HOLD and release the parking brake when the
ignition switch is ON.
2. Start the engine. Push the N (neutral) button while depressing the brake
pedal. If the message ("Press and
hold OK button to stay in Neutral
when vehicle is OFF") appears on the
cluster LCD display, press and hold
the OK button on the steering wheel
for more than 1 second.
3. When the message ("Vehicle will stay in (N). Change gear to cancel")
appears on the cluster LCD display,
turn off the engine.
In this situation, if you unfasten the
driver's seat belt and open the driver's
door within 3 minutes, the gear stays in
the N (Neutral) position and the ignition
switch is turned off.

While Driving
6-16
When the battery is discharged:
You cannot shift the gear when the
battery is discharged.
In emergencies, do the following to
move the shift button to N (Neutral) on a
level ground.
1. Connect the battery cables from
another vehicle or from a another
battery to the jump-starting terminals
inside the engine compartment.
For more information refer to "Jump Starting" in chapter 7.
2. Release the parking brake with the Engine Start/Stop button in the ON position.
3. Shift the gear to the N(Neutral) position. Refer to the "Stay in Neutral
when vehicle is Off" in this chapter.
Parking
Always come to a complete stop and
continue to depress the brake pedal.
Press the P button, apply the parking
brake, and place the ignition switch in
the LOCK/OFF position. Take the Key
with you when exiting the vehicle. • The gear is shifted to P (Park) position
automatically for safety under the
following conditions.
- When the driver unfastens the seat belt and opens the driver’s door.
- When the engine is turned off with the gear shifted to R (Reverse), D
(Drive) or N (Neutral).
WARNING
When you stay in the vehicle with
the engine running, be careful not to
depress the accelerator pedal for a long
period of time. The engine or exhaust
system may overheat and start a fire.
The exhaust gas and the exhaust system
are very hot. Keep away from the
exhaust system components.
Do not stop or park over flammable
materials, such as dry grass, paper or
leaves. They may ignite and cause a fire.