2020 HYUNDAI SONATA HYBRID ignition

Foreword
1-16
Warning and Indicator Lights
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, we recommend
that you have your vehicle inspected by
an authorized HYUNDAI dealer.
EV mode indicator
This indicator illuminates:
When the vehicle is driven by the electric
motor.
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, we recommend that
you 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
your 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.

01
1-19
Refuel to prevent Hybrid battery
damage
OOSHQ019011L
This message is displayed when the fuel
tank is nearly empty.
You should refill the fuel tank to prevent
hybrid battery damage.
Refill inverter coolant
OOSHQ019012L
This message is displayed when the
inverter coolant is nearly empty.
You should refill the inverter coolant.
Park with engine On to charge
battery
OOSHQ019013L
This message is displayed when the
hybrid battery power (SOC) level is low.
If this occurs, park the vehicle in a safe
location and wait until the hybrid battery
is charged.
Start engine to avoid battery
discharge
OOSHQ019027L
This message is displayed to inform the
driver the 12V battery may be discharged
if the ignition switch is in ON position
(without the
indicator ON).
Set the vehicle to the ready () mode
to prevent the 12V battery from being
discharged.

01
1-27
WARNING
If a fire occurs:
• If a small scale fire occurs, use a fire
extinguisher (ABC, BC) that is meant
for electrical fires.
If it is impossible to extinguish
the fire in the early stage, remain
a safe distance from the vehicle
and immediately call your local
fire emergency responders. Also,
advise them that a hybrid vehicle is
involved.
If the fire spreads to the high voltage
battery, large amount of water is
needed to put out the fire.
Using small amount of water or
fire extinguishers not meant for
electrical fires could cause serious
injury or death from electrical
shocks.
• Upon witnessing any sparks, gases,
flames, or fuel leakage of your
vehicle, immediately call emergency
services or contact an authorized
HYUNDAI dealer. Also, advise them
that a hybrid vehicle is involved.
WARNING
When a submersion in water occurs:
When your vehicle is flooded in water, a
high-voltage battery may cause shock
or fires. Thus, turn the hybrid system
OFF, take the key in your possession and
escape to a safe place. Never attempt
physical contact with your flooded
vehicle.
Immediately contact an authorized
HYUNDAI dealer and advise them that a
hybrid vehicle is involved.
When the Hybrid Vehicle Shuts
Off
When the high voltage battery or 12 volt
battery is discharged, or when the fuel
tank is empty, the hybrid system may
not operate while driving. When the
Hybrid system does not operate, do the
following:
1. Gradually reduce the vehicle speed.
Pull over your vehicle off the road in a
safe area.
2. Make sure the shift button is in P
(Park).
3. Turn ON the hazard warning flashers.
4. Turn OFF the vehicle, and try to
start the hybrid system again, while
depressing the brake pedal and
turning on the ignition switch.
5. When the hybrid system still does not
operate, refer to “If the 12 Volt Battery
Is Discharged” section in chapter 7.
Before jump-starting the vehicle,
check the fuel level and the exact
procedure to jump start. For further
details, refer to “If the 12 Volt Battery
Is Discharged” section in chapter
7. When the fuel level is low, do not
attempt to drive the vehicle only with
the battery power. The high voltage
battery may be discharged, and the
hybrid system will turn OFF.

Safety System
3-16
„„Front
ODN8039019
While the engine is running, push either
of the switches to warm the driver’s seat
or front passenger’s seat.
During mild weather or under conditions
where the operation of the seat warmer
is not needed, keep the switches in the
OFF position.
• Manual temperature control
Each time you push the switch, the
temperature setting of the seat is
changed as follows:
-Front seat
LOW ( ) ← MIDDLE (





) → HIGH (













)
OFF → HIGH (








) → HIGH (













)
UP
UP
DOWN
DOWN
↑
↓ DOWN
UP
• Automatic temperature control
The seat warmer starts to
automatically control the seat
temperature in order to prevent
low-temperature burns after being
manually turned ON.
-Front seat
OFF →
←
↑
↓ 30 MIN
60 MIN
LOW ( )
HIGH ( )
MIDDLE ( )
You may manually press the switch to
increase seat temperature. However, it
soon returns the automatic mode again.
• When pressing the switch for more
than 1.5 seconds with the seat warmer
operating, the seat warmer will turn
OFF.
• The seat warmer defaults to the OFF
position whenever the ignition switch
is in the ON position. However, if the
Auto Comfort Control function is ON,
the driver’s seat warmer will turn on
and off depending on the ambient
temperature.
• Auto Comfort Control (for driver’s
seat, if equipped)
The seat warmer automatically
controls the seat temperature
depending on the ambient
temperature when the engine is
running. If the seat warmer switch
is pushed, the seat warmer will have
to be controlled manually. To use
this function, it must be activated
from the Settings menu in the AVN
system screen. For more information,
refer to the separately supplied Car
Infotainment System manual.

03
3-17
Front air ventilation seat
(if equipped)
ODN8039023
The air ventilation seats are provided
to cool the front seats by blowing air
through small vent holes on the surface
of the seat cushions and seatbacks.
When the operation of the air ventilation
seat is not needed, keep the switches in
the OFF position.
While the engine is running, push the
switch to cool the driver’s seat or the
front passenger’s seat. •
Each time you push the switch, the
airflow changes as follows:
LOW ( ) ← MIDDLE (





) → HIGH (













)
OFF → HIGH (








) → HIGH (













)
DOWN
DOWN
UP
UP ↑
↓ UP
DOWN
• When pressing the switch for
more than 1.5 seconds with the
air ventilation seat operating, the
operation will turn OFF.
• The air ventilation seat defaults to the
OFF position whenever the ignition
switch is in the ON position. However,
if the Auto Comfort Control function
is ON, the driver’s air ventilation seat
will turn on and off depending on the
ambient temperature.
• Auto Comfort Control (for driver’s
seat, if equipped)
The air ventilation seat automatically
controls the seat temperature
depending on the ambient
temperature when the engine is
running. If the air ventilation seat
switch is pushed, the seat warmer will
have to be controlled manually. To
use this function, it must be activated
from the Settings menu in the AVN
system screen. For more information,
refer to the separately supplied Car
Infotainment System manual.

Safety System
3-20
Seat Belt Warning Light
Seat belt warning light
(for driver’s seat)
ODN8039070L
As a reminder to the driver, the seat
belt warning light will illuminate for
approximately 6 seconds each time
you place the ignition switch to the ON
position regardless of belt fastening.
However, if the seat belt is Unfastened,
a warning chime will sound for
approximately 6 seconds.
If you continue not to fasten the seat
belt and you drive at 6 mph (9 km/h) or
more but less than 12mph (20 km/h), the
warning light will stay illuminated.
If you continue not to fasten the seat
belt and you drive over 12 mph (20 km/h)
the seat belt warning chime will sound
for approximately 100 seconds and the
corresponding warning light will blink.
If you unfasten the seat belt while driving
under 12 mph (20 km/h), the seat belt
warning light will illuminate until the seat
belt is fastened.
If you unfasten the seat belt while
driving over 12 mph (20 km/h), the
seat belt warning chime will sound for
approximately 100 seconds and the
corresponding warning light will blink.
Seat belt warning light
(for front passenger’s seat)
As a reminder to the front passenger,
the front passenger’s seat belt warning
lights will illuminate for approximately 6
seconds each time you place the ignition
switch to the ON position regardless of
belt fastening.
If you continue not to fasten the seat
belt and you drive at 6 mph (9 km/h) or
more but less than 12mph (20 km/h), the
warning light will stay illuminated.
If you continue not to fasten the seat
belt and you drive over 12 mph (20 km/h)
the seat belt warning chime will sound
for approximately 100 seconds and the
corresponding warning light will blink.
If you unfasten the seat belt while driving
under 12 mph (20 km/h) the seat belt
warning light will illuminate until the seat
belt is fastened.
If you unfasten the seat belt while
driving over 12 mph (20 km/h), the
seat belt warning chime will sound for
approximately 100 seconds and the
corresponding warning light will blink.
WARNING
The front passenger’s seat belt warning
light may not properly operate if the
front passenger does not sit properly in
the seat.
If you place an object on the passenger
seat or back seat or under the seats,
the warning chime may sound. Please
remove the object if the chime sounds.

03
3-25
OHI038175L
The Pre-Tensioner Seat Belt System
consists mainly of the following
components. Their locations are shown
in the illustration above:
1. SRS air bag warning light
2. Retractor pre-tensioner
3. SRS control module
NOTICE
The sensor that activates the SRS air
bag is connected with the pre-tensioner
seat belts. The SRS air bag warning light
on the instrument panel will illuminate
for approximately 6 seconds after the
ignition switch is in the ON position,
and then it should turn off.
If the pre-tensioner is not working
properly, the warning light will
illuminate even if the SRS air bag is not
malfunctioning. If the warning light
does not illuminate, stays illuminated
or illuminates when the vehicle is being
driven, have an authorized HYUNDAI
dealer inspect the pre-tensioner seat
belts and SRS air bags as soon as
possible.
NOTICE
• Both the driver’s and front
passenger’s pre-tensioner seat belts
may be activated in certain frontal or
side collisions or rollovers.
• When the pre-tensioner seat belts
are activated, a loud noise may be
heard and fine dust, which may
appear to be smoke, may be visible in
the passenger compartment. These
are normal operating conditions and
are not hazardous.
• Although it is non-toxic, the fine
dust may cause skin irritation and
should not be inhaled for prolonged
periods. Wash all exposed skin areas
thoroughly after an accident in
which the pre-tensioner seat belts
were activated.
WARNING
• Fasten your seat belt while sitting
properly in an upright position to
maximize the effectiveness of the
pre-tensioner seat belt system.
• A pre-tensioner seat belt system
is designed to activate only once.
Replace the pre-tensioner seat belt
system, if it was activated in an
accident.

03
3-41
WARNING
To reduce the risk of serious injury or
death from an inflating side air bag,
take the following precautions:
• Seat belts must be worn at all times
to help keep occupants positioned
properly.
• Do not allow passengers to lean their
heads or bodies onto doors, put their
arms on the doors, stretch their arms
out of the window, or place objects
between the doors and seats.
• Hold the steering wheel at the 9
o’clock and 3 o’clock positions, to
minimize the risk of injuries to your
hands and arms.
• Do not use any accessory seat
covers. This could reduce or prevent
the effectiveness of the system.
• Do not place any objects over the
air bag or between the air bag and
yourself. Also, do not attach any
objects around the area the air bag
inflates such as the door, side door
glass, front and rear pillar.
• Do not place any objects between
the door and the seat. They may
become dangerous projectiles if the
side air bag inflates.
• Do not install any accessories on the
side or near the side air bags.
• Do not put any objects between the
side airbag label and seat cushion. It
could cause harm if the vehicle is in a
crash severe enough to cause the air
bags to deploy.
• Do not cause impact to the doors
when the ignition switch button is in
the ON position as this may cause the
side air bags to inflate.
• If the seat or seat cover is damaged,
have the vehicle checked and
repaired by an authorized HYUNDAI
dealer.
Curtain air bags
ODN8039042
ODN8039043
Curtain air bags are located along both
sides of the roof rails above the front and
rear doors.
They are designed to help protect the
heads of the front seat occupants and
the rear outboard seat occupants in
certain side impact collisions.
The curtain air bags are designed to
deploy during certain side impact
collisions, depending on the crash
severity.
The side and curtain air bags on both
sides of the vehicle may deploy if a
rollover or possible rollover is detected.
The curtain air bags are not designed
to deploy in all side impact or rollover
situations.