2020 HYUNDAI SONATA HYBRID battery

05
5-121
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.

06
6 -7
Engine Stop/Start button positions
Button
Position Action
Notice
OFF To 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
6-9
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.
ODN8H060002N
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
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 32 feet (10 m)
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 72°F(22°C).

06
6-13
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 is shifted
to P(Park) position automatically and the
ignition switch is turned off.
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 N
(Neutral) position when engine 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.

While Driving
6-18
BRAKE SYSTEM
Power Brakes
Your vehicle has power-assisted brakes
that adjust automatically through normal
usage.
If the vehicle is not in the ready (
)
mode or the vehicle 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 vehicle is not in the ready
(
) mode, 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.
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.
NOTICE
• Do not continue depressing the
brake pedal if the "" indicator is OFF. The battery may be discharged.
• Noise and vibration generated
during braking is normal.
• Under normal operation, electric
brake pump noise and motor
vibration may occur temporarily in
below cases.
-When the pedal is depressed
suddenly.
-When the pedal is repeatedly
depressed in short intervals.
-When the ABS function is activated
while braking.

While Driving
6-28
WARNING
If the ABS warning light () is on and
stays on, you may have a problem with
the ABS. Your power brakes will work
normally. To reduce the risk of serious
injury or death, contact your HYUNDAI
dealer as soon as possible.
CAUTION
When you drive on a road having poor
traction, such as an icy road, and apply
your brakes continuously, the ABS will
be active continuously and the ABS
warning light (
) may illuminate. Pull
your car over to a safe place and turn
the engine off.
Restart the engine. If the ABS warning
light is off, then your ABS system is
normal.
Otherwise, you may have a problem
with your ABS system. Contact an
authorized HYUNDAI dealer as soon as
possible.
Information
When you jump start your vehicle because
of a drained battery, the ABS warning
light (
) may turn on at the same
time. This happens because of the low
battery voltage. It does not mean your
ABS is malfunctioning. Have the battery
recharged before driving the vehicle.
Electronic Stability Control (ESC)
ODN8069018
The Electronic Stability Control (ESC)
system helps to stabilize the vehicle
during cornering maneuvers. ESC checks
where you are steering and where the
vehicle is actually going. ESC applies
braking pressure to any one of the
vehicle's brakes and intervenes in the
engine management system to assist the
driver with keeping the vehicle on the
intended path. It is not a substitute for
safe driving practices. Always adjust your
speed and driving to the road conditions.
WARNING
Never drive too fast for the road
conditions or too quickly when
cornering. The ESC system will not
prevent accidents.
Excessive speed in turns, abrupt
maneuvers, and hydroplaning on wet
surfaces can result in severe accidents.

06
6-137
Chain installation
When installing tire chains, follow the
manufacturer’s instructions and mount
them as tightly possible. Drive slowly
(less than 20 mph (30 km/h)) with
chains installed. If you hear the chains
contacting the body or chassis, stop and
tighten them. If they still make contact,
slow down until the noise stops. Remove
the tire chains as soon as you begin
driving on cleared roads.
When mounting snow chains, park the
vehicle on level ground away from traffic.
Turn on the vehicle Hazard Warning
Flasher and place a triangular emergency
warning device behind the vehicle (if
available). Always place the vehicle in P
(Park), apply the parking brake and turn
off the engine before installing snow
chains.
NOTICE
When using tire chains:
• Wrong size chains or improperly
installed chains can damage your
vehicle's brake lines, suspension,
body and wheels.
• Use SAE "S" class or wire chains.
• If you hear noise caused by chains
contacting the body, retighten the
chain to prevent contact with the
vehicle body.
• To prevent body damage, retighten
the chains after driving 0.3~0.6 miles
(0.5~1.0 km).
• Do not use tire chains on vehicles
equipped with aluminum wheels. If
unavoidable, use a wire type chain.
• Use wire chains less than 0.59 inch
(15mm) wide to prevent damage to
the chain’s connection.
Winter Precautions
Use high quality ethylene glycol
coolant
Your vehicle is delivered with high
quality ethylene glycol coolant in the
cooling system. It is the only type of
coolant that should be used because it
helps prevent corrosion in the cooling
system, lubricates the water pump and
prevents freezing. Be sure to replace or
replenish your coolant in accordance
with the maintenance schedule in
chapter 8. Before winter, have your
coolant tested to assure that its freezing
point is sufficient for the temperatures
anticipated during the winter.
Change to "winter weight" oil if
necessary
In some climates it is recommended that
a lower viscosity "winter weight" oil be
used during cold weather. See chapter 8
for recommendations. If you aren't sure
what weight oil you should use, consult
an authorized HYUNDAI dealer.
Check battery and cables
Winter puts additional burdens on the
battery system. Visually inspect the
battery and cables as described in
chapter 8. The level of charge in your
battery can be checked by an authorized
HYUNDAI dealer or a service station.

7. Emergency situations
Hazard Warning Flasher ........................................................................\
............7-2
In Case of an Emergency While driving
...........................................................7-2If the Engine Stalls While Driving ........................................................................\
........7-2
If the Engine Stalls at a Crossroad or Crossing ..........................................................7-2
If You Have a Flat Tire While Driving ........................................................................\
...7-3
If the Engine Will Not Start ........................................................................\
........7-3
If the 12 Volt Battery Is Discharged
..................................................................7-4Before Jump Starting ........................................................................\
...........................7-4
Jump Starting ........................................................................\
.......................................7-5
If the Engine Overheats ........................................................................\
.............7-7
Tire Pressure Monitoring System (TPMS)
........................................................7-9Check Tire Pressure ........................................................................\
..............................7-9
Tire Pressure Monitoring System ........................................................................\
.......7-10
Low Tire Pressure Telltale ........................................................................\
....................7-11
Low Tire Pressure LCD Display with Position Indicator .............................................7-11
TPMS (Tire Pressure Monitoring System) Malfunction Indicator .............................7-12
Changing a Tire with TPMS ........................................................................\
................7-12
If You Have a Flat Tire (with Spare Tire) ..........................................................7-14Jack and Tools ........................................................................\
.....................................7-14
Changing Tires ........................................................................\
.....................................7-15
Jack Label ........................................................................\
............................................7-19
If You Have a Flat Tire (with Tire Mobility Kit) ................................................7-20Introduction ........................................................................\
........................................7-20
Notes on the Safe Use of the Tire Mobility Kit ..........................................................7-21
Components of the Tire Mobility Kit ........................................................................\
.7-22
Using the Tire Mobility Kit ........................................................................\
.................7-23
Checking the Tire Inflation Pressure ........................................................................\
.7-25
Towing ........................................................................\
......................................7-26Towing Service ........................................................................\
...................................7-26
Removable Towing Hook ........................................................................\
....................7-27
Emergency Towing ........................................................................\
.............................7-28
Emergency situations
7