2020 Hyundai Sonata warning light

While Driving6-6
Key Ignition Switch (if equipped)
WARNING
To reduce the risk of SERIOUS INJURY or
DEATH, take the following precautions:
• NEVER allow children or any person
who is unfamiliar with the vehicle to
touch the ignition switch or related
parts. Unexpected and sudden
vehicle movement can occur.
• NEVER reach through the steering
wheel for the ignition switch, 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.
OAE056172LOAE056172L
Whenever the front door is opened, the
ignition switch will illuminate, provided
the ignition switch is not in the ON
position. The light will go off immediately
when the ignition switch is turned on or
go off after about 30 seconds when the
door is closed. (if equipped)
WARNING
NEVER turn the ignition switch to the
LOCK or ACC position 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 P (Park)
position, apply the parking brake,
and turn ignition switch to the LOCK
position.
Unexpected vehicle movement may
occur if these precautions are not
followed.
IGNITION SWITCH
LOCK ACC
ON
START

06
6-7
Key ignition switch positions
Switch
Position Action Notice
LOCK T
o turn the ignition switch to the
LOCK position, put the key in at
the ACC position and turn the key
towards the LOCK position.
The ignition key can be removed in
the LOCK position.
(The shift button must be in the P
(Park) position)
ACC Electrical accessories are usable.
The steering wheel unlocks.
ON This is the normal key position when
the engine has started.
All features and accessories are
usable.
The warning lights can be checked
when you turn the ignition switch
from ACC to ON. Do not leave the ignition switch in
the ON position when the engine is
not running in order to prevent the
battery from discharging.
START To start the engine, turn the ignition
switch to the START position. The
switch returns to the ON position
when you let go of the key. The engine will crank until you
release the key.

While Driving6-10
Engine Stop/Start button positions
Button
Position Action Notice
OFF T
o 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.

While Driving6-18
Good Driving Practices
• Never shift the gear from P (Park) or N (Neutral) to any other position with
the accelerator pedal depressed.
• Never shift the gear into P (Park) when the vehicle is in motion.
• Be sure the vehicle is completely stopped before you attempt to shift
into R (Reverse) or D (Drive).
• Do not shift the gear to N (Neutral) when driving. Doing so may result
in an accident because of a loss of
engine braking and the transmission
could be damaged.
• Do not drive with your foot resting on the brake pedal. Even light, but
consistent pedal pressure can result
in the brakes overheating, brake wear
and possibly even brake failure.
• When driving in the manual shift mode, slow down before shifting to a
lower gear. Otherwise, the lower gear
may not be engaged if the engine
rpms are outside of the allowable
range.
• Always apply the parking brake when leaving the vehicle. Do not depend on
placing the transmission in P (Park) to
keep the vehicle from moving.
• Exercise extreme caution when driving on a slippery surface. Be
especially careful when braking,
accelerating or shifting gears. On a
slippery surface, an abrupt change
in vehicle speed can cause the drive
wheels to lose traction and may cause
loss of vehicle control resulting in an
accident
• Optimum vehicle performance and economy is obtained by smoothly
depressing and releasing the
accelerator. WARNING
To reduce the risk of SERIOUS INJURY
or DEATH:
• ALWAYS wear your seatbelt. In a
collision, an unbelted occupant
is significantly more likely to be
seriously injured or killed than a
properly belted occupant.
• Avoid high speeds when cornering or
turning.
• Do not make quick steering wheel
movements, such as sharp lane
changes or fast, sharp turns.
• The risk of rollover is greatly
increased if you lose control of your
vehicle at highway speeds.
• Loss of control often occurs if two or
more wheels drop off the roadway
and the driver over steers to reenter
the roadway.
• In the event your vehicle leaves
the roadway, do not steer sharply.
Instead, slow down before pulling
back into the t ravel lanes.
• HYUNDAI recommends you follow all
posted speed limits.

While Driving6-20
BRAKE SYSTEM
Power Brakes
Your vehicle has power-assisted brakes
that adjust automatically through normal
usage.
If the engine is not running or is turned
off while driving, the power assist for
the brakes will not work. You can still
stop your vehicle by applying greater
force to the brake pedal than typical.
The stopping distance, however, will be
longer than with power brakes.
When the engine is not running, the
reserve brake power is partially depleted
each time the brake pedal is applied.
Do not pump the brake pedal when the
power assist has been interrupted.
Only pump the brakes on slippery
surfaces if the power assist has been
interrupted to maintain steering control.
Do not pump the brakes on slippery
surfaces if the brakes are operating
normally.
WARNING
Take the following precautions:
• Do not drive with your foot resting
on the brake pedal. This will create
abnormal high brake temperatures,
excessive brake lining and pad wear,
and increased stopping distances.
• When descending down a long or
steep hill, move the gear shift button
to Manual Shift Mode and manually
downshift to a lower gear in order
to control your speed without using
the brake pedal excessively. Applying
the brakes continuously will cause
the brakes to overheat and could
result in a temporary loss of braking
performance.
• Wet brakes may impair the vehicle's
ability to safely slow down; the
vehicle may also pull to one side
when the brakes are applied.
Applying the brakes lightly will
indicate whether they have been
affected in this way. Always test your
brakes in this fashion after driving
through deep water. To dry the
brakes, lightly tap the brake pedal to
heat up the brakes while maintaining
a safe forward speed until brake
performance returns to normal.
Avoid driving at high speeds until the
brakes function correctly.
Disc Brakes Wear Indicator
When your brake pads are worn and new
pads are required, you will hear a high
pitched warning sound from your front
or rear brakes. You may hear this sound
come and go or it may occur whenever
you depress the brake pedal.
Note that some driving conditions or
climates may cause a brake squeal
when you first apply (or lightly apply)
the brakes. This is normal and does not
indicate a problem with your brakes.
NOTICE
To avoid costly brake repairs, do not
continue to drive with worn brake pads.
Information
Always replace brake pads as complete
front or rear axle sets.

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.

06
6-23
Information
• A clicking sound may be heard while
operating or releasing the EPB. These
conditions are normal and indicate that
the EPB is functioning properly.
• When leaving your keys with a parking
attendant or assistant, make sure to
inform him/her how to operate the
EPB.
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.
OIK057077NOIK057077N
Parking brake automatically engaged
If the EPB is applied while Auto Hold is
activ
ated, a warning will sound and a
message will appear.
EPB malfunction indicator
ODN8069014ODN8069014
This warning light illuminates if the
ignition switch is set to the ON position
and goes off in approximately 3 seconds
if the system is operating normally.
If the EPB malfunction indicator
remains on, comes on while driving, or
does not come on when the ignition
switch is changed to the ON position,
this indicates that the EPB may have
malfunctioned.
If this occurs, have the system checked
by an authorized HYUNDAI dealer.
The EPB malfunction indicator may
illuminate when the ESC indicator comes
on to indicate that the ESC is not working
properly, but it does not indicate a
malfunction of the EPB.
NOTICE
• If the EPB warning light is still on,
have the system checked by an
authorized HYUNDAI dealer.
• If the parking brake warning light
does not illuminate or blinks even
though the EPB switch was pulled
up, the EPB may not be applied.
• If the parking brake warning light
blinks when the EPB warning light is
on, press the switch, and then pull it
up. Repeat this one more time. If the
EPB warning does not go off, have
the system checked by an authorized
HYUNDAI dealer.