
06
6-5
Before Entering the Vehicle
• Be sure all windows, outside mirror(s), and outside lights are clean and
unobstructed.
• Remove frost, snow, or ice.
• Visually check the tires for uneven wear and damage.
• Check under the vehicle for any sign of leaks.
• Be sure there are no obstacles behind you if you intend to back up.
Before Starting
• Make sure the hood, the trunk, and the doors are securely closed and
locked.
• Adjust the position of the seat and steering wheel.
• Adjust the inside and side view mirrors.
• Verify all the lights work.
• Fasten your seatbelt. Check that all passengers have fastened their
seatbelts.
• Check the gauges and indicators in the instrument panel and the
messages on the instrument display
when the ignition switch is in the ON
position.
• Check that any items you are carrying are stored properly or fastened down
securely.
WARNING
To reduce the risk of SERIOUS INJURY or
DEATH, take the following precautions:
• ALWAYS wear your seat belt. All
passengers must be properly belted
whenever the vehicle is moving.
For more information, refer to "Seat
Belts" in chapter 3.
• Always drive defensively. Assume
other drivers or pedestrians may be
careless and make mistakes.
• Stay focused on the task of driving.
Driver distraction can cause
accidents.
• Leave plenty of space between you
and the vehicle in front of you.
WARNING
NEVER drink alcohol or take drugs and
drive.
Drinking alcohol or taking drugs and
driving is dangerous and may result in
an accident and SERIOUS INJURY or
DEATH.
Drunk driving is the number one
contributor to the highway death
toll each year. Even a small amount
of alcohol will affect your reflexes,
perceptions and judgment. Just
one drink can reduce your ability to
respond to changing conditions and
emergencies and your reaction time
gets worse with each additional drink.
Driving while under the influence
of drugs is as dangerous or more
dangerous than driving under the
influence of alcohol.
You are much more likely to have a
serious accident if you drink or take
drugs and drive. If you are drinking or
taking drugs, don't drive. Do not ride
with a driver who has been drinking
or taking drugs. Choose a designated
driver or call a taxi.
BEFORE DRIVING

06
6-21
Electronic Parking Brake (EPB)
Applying the parking brake
ODN8069012ODN8069012
To apply the EPB (Electronic Parking
Brake):
1. Depress the brake pedal.
2.
Pull up the EPB switch.
Make sure the parking brake
warning light comes on.
WARNING
To reduce the risk of SERIOUS INJURY
or DEATH, do not operate the EPB
while the vehicle is moving except
in an emergency situation. It could
damage the brake system and lead to
an accident.
Releasing the parking brake
ODN8069013ODN8069013
To release the EPB (Electronic Parking
Brake):
• Place the ignition switch in the ON position.
•
Depress and hold the brake pedal.
• Press the EPB switch.
Make sure the Parking Brake Warning
Light goes off.
To release EPB (Electronic Parking Brake)
automatically:
• Satisfy the following conditions 1.
Ensure seat belts are fastened
and the doors, hood and trunk are
closed.
2. With the engine running, depress the brake pedal and shift out of P
(Park) to R (Reverse), D (Drive) or
Manual shift mode.
3. Depress the accelerator pedal.
Make sure the parking brake warning
light goes off.

While Driving6-22
EPB (Electronic Parking Brake) may be
automatically applied when:
• Requested by other systems
• The driver turns the engine off while Auto Hold is operating.
• The vehicle is parked on the slope and the Engine Start/Stop button is in the
OFF position.
• The Engine is turned off when the driver tries to park but the vehicle still
moves a bit.
Warning messages
OAEE056115LOAEE056115L
To release EPB, fasten seatbelt, close
door, hood and trunk
• If you try to drive with the EPB applied, a warning will sound and a
message will appear.
• If the driver's seat belt is unfastened and the engine hood or trunk is
opened, a warning will sound and a
message will appear.
• If there is a problem with the vehicle, a warning may sound and a message
may appear.
If the situation occurs, depress the brake
pedal and release EPB by pressing the
EPB switch.
WARNING
• Whenever leaving the vehicle or
parking, always come to a complete
stop and continue to depress the
brake pedal.
Shift the gear into the P (Park) position, press the EPB switch, and
set the ignition switch to the OFF
position. Take the Key with you when
exiting the vehicle.
Vehicles not fully engaged in P (Park) with the parking brake set are at risk
for moving inadvertently and causing
injury to yourself or others.
• NEVER allow anyone who is
unfamiliar with the vehicle to touch
the EPB switch. If the EPB is released
unintentionally, serious injury may
occur.
• Only release the EPB when you are
seated inside the vehicle with your
foot firmly on the brake pedal.
NOTICE
• Do not apply the accelerator pedal
while the parking brake is engaged.
If you depress the accelerator pedal
with the EPB engaged, a warning will
sound and a message will appear.
Damage to the parking brake may
occur.
• Driving with the parking brake on
can overheat the braking system and
cause premature wear or damage
to brake parts. Make sure the EPB
is released and the Parking Brake
Warning Light is off before driving.

While Driving6-24
Parking brake warning light
Check the parking brake
warning light by placing the
ignition switch to the ON
position (do not start the
engine).
This light will be illuminated when the
parking brake is applied with the ignition
switch in the START or ON position.
If the parking brake warning light
remains on after the parking brake
is released while engine is running,
there may be a malfunction in the
brake system. Immediate attention is
necessary.
If at all possible, cease driving the vehicle
immediately. If that is not possible,
use extreme caution while operating
the vehicle and only continue to drive
the vehicle until you can reach a safe
location.
Emergency braking
If there is a problem with the brake
pedal while driving, emergency braking
is possible by pulling up and holding
the EPB switch. Braking is possible only
while you are holding the EPB switch.
However, braking distance will be longer
than normal.
WARNING
Do not operate the parking brake while
the vehicle is moving except in an
emergency situation. It could damage
the brake system and lead to a severe
accident.
Information
During emergency braking, the parking
brake warning light will illuminate to
indicate that the system is operating.
NOTICE
If you continuously notice a noise or
burning smell when the EPB is used
for emergency braking, have system
checked by an authorized HYUNDAI
dealer.
When the EPB (Electronic Parking Brake)
does not r
elease
If the EPB does not release normally,
contact an authoriz
ed HYUNDAI dealer
by loading the vehicle on a flatbed tow
truck and have the system checked.
Auto Hold
The Auto Hold maintains the vehicle in a
standstill even though the brake pedal is
not depressed after the driver brings the
vehicle to a complete stop by depressing
the brake pedal.
To apply :
ODN8069015ODN8069015
1. With the driver's door and engine hood closed, depress the brake
pedal and then press the [AUTO
HOLD] switch. The white AUTO HOLD
indicator will come on and the system
will be in the standby position.
••CLUSTERCLUSTER

06
6-25
ODN8069016ODN8069016
2. When you stop the vehicle completely by depressing the brake
pedal, the Auto Hold maintains the
brake pressure to hold the vehicle
stationary. The indicator changes from
white to green.
3. The vehicle will remain stationary even if you release the brake pedal.
4. If EPB is applied, Auto Hold will be released.
To release :
• If you press the accelerator pedal with the gear in D (Drive), R (Reverse)
or Manual shift mode, the Auto Hold
will be released automatically and the
vehicle will start to move. The AUTO
HOLD indicator changes from green
to white.
• If the vehicle is restarted using the cruise control toggle switch (RES+
or SET-) while Auto Hold and cruise
control is operating, the Auto Hold will
be released regardless of accelerator
pedal operation. The AUTO HOLD
indicator changes from green to
white.
WARNING
When the AUTO HOLD is automatically
released by depressing the accelerator
pedal, always take a look around your
vehicle.
Slowly depress the accelerator pedal
for a smooth start.
To cancel :
ODN8069017ODN8069017
1. Depress the brake pedal.
2. Press the [AUTO HOLD] switch.
The AUTO HOLD indicator will turn off.
Information
• The Auto Hold does not operate when:
- The driver's door is opened
- The engine hood is opened
- The gear is in P (Park)
- The EPB is applied
• For your safety, the Auto Hold
automatically switches to EPB when:
- The driver's door is opened with the
gear in D (Drive) or N (Neutral)
- The trunk is opened with the gear in
R (Reverse)
- The engine hood is opened with the
gear in D (Drive) or N (Neutral)
- The vehicle stops for more than 10
minutes
- The vehicle stands on a steep slope
- The vehicle moves several times
••CLUSTERCLUSTER

While Driving6-26
In these cases, the parking brake
warning light comes on, the AUTO
HOLD indicator changes from green
to white, and a warning sound and a
message will appear to inform you that
EPB has been automatically engaged.
Before driving off again, press foot
brake pedal, check the surrounding
area near your vehicle and release
parking brake manually with the EPB
switch.
• While operating Auto Hold, you may
hear mechanical noise. However, it is
normal operating noise.
NOTICE
If the AUTO HOLD indicator changes
to yellow, the Auto Hold is not working
properly. Contact an authorized
HYUNDAI dealer.
WARNING
• Depress the accelerator pedal slowly
when you start the vehicle.
• For your safety, cancel the Auto Hold
when you drive downhill, back up the
vehicle or park the vehicle.
NOTICE
If there is a malfunction with the
driver's door or engine hood open
detection system, the Auto Hold may
not work properly.
Contact an authorized HYUNDAI dealer.
Warning messages
OTM058187LOTM058187L
Parking brake automatically engaged
When the EPB is applied from Auto Hold,
a w
arning will sound and a message will
appear.
OIK057079NOIK057079N
AUTO HOLD turning Off!
Press brake pedal
When the conversion from Auto Hold to
EPB is no
t working properly a warning
will sound and a message will appear.
When this message is displayed, the Auto
Hold and EPB may not operate. For your
safety, depress the brake pedal.
![Hyundai Sonata 2020 Owners Manual 06
6-27
OIK057080LOIK057080L
Press brake pedal to deactivate AUTO
HOLD
If you did not apply the brake pedal when
y
ou release the Auto Hold by pressing
the [AUTO HOLD] switch, a warning will
sound Hyundai Sonata 2020 Owners Manual 06
6-27
OIK057080LOIK057080L
Press brake pedal to deactivate AUTO
HOLD
If you did not apply the brake pedal when
y
ou release the Auto Hold by pressing
the [AUTO HOLD] switch, a warning will
sound](/manual-img/35/16773/w960_16773-310.png)
06
6-27
OIK057080LOIK057080L
Press brake pedal to deactivate AUTO
HOLD
If you did not apply the brake pedal when
y
ou release the Auto Hold by pressing
the [AUTO HOLD] switch, a warning will
sound and a message will appear.
OTM058159LOTM058159L
AUTO HOLD conditions not met. Close
door and hood.
When you press the [AUTO HOLD]
s
witch, if the driver's door and engine
hood are not closed, a warning will
sound and a message will appear on the
cluster LCD display.
Press the [AUTO HOLD] switch after
closing the driver's door and hood.
Anti-lock Brake System (ABS)
WARNING
An Anti-Lock Braking System (ABS) or
an Electronic Stability Control (ESC)
system will not prevent accidents
due to improper or dangerous driving
maneuvers. Even though vehicle
control is improved during emergency
braking, always maintain a safe
distance between you and objects
ahead of you. Vehicle speeds should
always be reduced during extreme
road conditions. The braking distance
for cars equipped with ABS or ESC
may be longer than for those without
these systems in the following road
conditions.
Drive your vehicle at reduced speeds
during the following conditions:
• Rough, gravel or snow-covered
roads.
• On roads where the road surface is
pitted or has different surface height.
• Tire chains are installed on your
vehicle.
The safety features of an ABS or ESC
equipped vehicle should not be tested
by high speed driving or cornering. This
could endanger the safety of yourself or
others.
ABS is an electronic braking system that
helps prevent a braking skid. ABS allows
the driver to steer and brake at the same
time.

06
6-33
The Idle Stop and Go (ISG) system
automatically and temporarily shuts
down the engine when the vehicle
is stopped and idling to improve fuel
efficiency and reduce exhaust gas
emissions. (i.e. red stop light, stop sign,
and traffic jam).
The engine is automatically started upon
satisfying the starting conditions.
The ISG system is always active, when
the engine is running.
Information
When the engine is automatically started
by the ISG system, some warning
lights (i.e. ABS, ESC, ESC OFF, EPS,
and parking brake warning light) may
illuminate for a few seconds due to the
low battery voltage. However, it does
not indicate a malfunction with the ISG
system.
To Activate the ISG System
Prerequisite for activation
The ISG system operates in the following
situations.
• The driver's seatbelt is fastened
• The driver's door and hood are closed
• The brake vacuum pressure is adequate
• The battery sensor is activated and the battery is sufficiently charged
• Outside temperature is not too low or too high
• The vehicle is driven over a constant speed and stops
• The climate control system satisfies the conditions
• The vehicle is sufficiently warmed up
• The incline is gradual
• The steering wheel is turned less than 180 degrees and then the vehicle
stops
Information
• The ISG system is not
activated, when the
prerequisites to activate
the ISG system are
unsatisfied. In this case,
the ISG OFF button indicator
illuminates, and the auto stop indicator
(
) illuminates in yellow on the
instrument cluster.
• When the above indicator remains
illuminated on the instrument cluster,
have the IGS system checked by an
authorized HYUNDAI dealer.
Auto stop
To stop the engine in idle stop mode
1. Decrease the vehicle speed to 0 mph.
2. Depress the brake pedal with the shift
button in D (Drive) or N (Neutral).
The auto stop indicator (
) illuminates
in green on the instrument cluster, when
the engine stops.
Information
The driving speed must reach at least 3
mph (5 km/h) after an idle stop to stop the
engine in idle stop mode again.
In auto stop mode, when the driver
opens the hood, the ISG system will be
deactivated.
ISG (IDLE STOP AND GO) SYSTEM (IF EQUIPPED)