2020 Hyundai Ioniq Plug-in Hybrid Owner's Manual

H46
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Engine Only Propulsion
Only the engine power is used to
drive the vehicle.
(Engine ➞Wheel)
Engine Generation
When the vehicle is stopped, the
high-voltage battery is charged up by
the engine.
(Engine ➞Battery)
Regeneration
The high-voltage battery is charged
up by the regenerative brake system.
(Wheel ➞Battery)
OAEPHQ049846LOAEPHQ049847LOAEPHQ049848L

H47
Engine Brake
The engine braking is used to decel-
erate the vehicle.
(Wheel ➞Engine)
Power Reserve
The engine is simultaneously used to
drive the vehicle and to charge up
the high-voltage battery.
(Engine ➞Wheel & Battery)
Engine Generation/Motor Drive
The engine charges up the high-volt-
age battery. The motor power is used
to drive the vehicle.
(Engine ➞Battery ➞Wheel)
OAEPHQ049849LOAEPHQ049850LOAEPHQ049851L

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Engine Generation/Regeneration
The engine and regenerative brake
system charges up the high-voltage
battery.
(Engine & Wheel ➞Battery)
Engine Brake/Regeneration
The engine braking is simultaneously
used to decelerate the vehicle and to
charge up the high-voltage battery.
(Wheel ➞Engine & Battery)
OAEPHQ049852LOAEPHQ049853L

H49
High Voltage Battery System
*1: Located in the engine compartment
*
2: Located under the rear seats
OAEPH088005
OAEQ046019
■ HPCU (Hybrid Power Control Unit)*1
■ High Voltage Battery System*2
Never touch orange colored or
high voltage labeled compo-
nents, including wires, cables,
and connections. When the insu-
lators or covers are damaged or
removed, severe injury or death
from electrocution may occur.
WARNING
While replacing the fuses in the
engine compartment, never
touch the HPCU. The HPCU car-
ries high voltage. Touching the
HPCU may result in electrocu-
tion, serious injury, or death.
WARNING
In the hybrid system, the hybrid
battery uses high voltage to
operate the motor and other
components. This high voltage
hybrid battery system can be
very dangerous. Never touch the
hybrid system. When you touch
the hybrid battery system, seri-
ous injury or death may occur.
WARNING
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H50
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*3: Located in the engine compartment
OAEQ046017
■ Drive Motor *3
Do not disassemble the high
voltage motor connector. The
high voltage motor connector
may contain residual high
voltage. Coming in contact
with high voltage may result
in death or serious injury.
Your vehicle's hybrid system
should only be inspected or
repaired by an authorized
HYUNDAI dealer.
WARNING
Do not disassemble or assem-
ble the high voltage battery
system. Doing so may result
in electric shock, causing
death or serious injury.
If you disassemble or assem-
ble hybrid system compo-
nents improperly, it may dam-
age the performance and reli-
ability of your vehicle.
If electrolyte comes in contact
with your body, clothes or
eyes, immediately flush with a
large quantity of fresh tap
water. Have your eyes exam-
ined by a doctor as soon as
possible.
WARNING
Do not pile up any items in an
area behind the high voltage
battery. In a crash, the battery
may become unstable, or its
performance may degrade.
Do not apply strong force nor
pile up any items above the
luggage compartment. Such
an attempt may distort the
high voltage battery case,
causing a safety problem or
degrading the performance.
Be careful when loading flam-
mable liquid in luggage com-
partment. It could cause oper-
ational and safety degrada-
tion if the liquid leaks and
flows in high voltage battery.
CAUTION

H51
When the vehicle is paint baked,
do not bake over 30 minutes in
158°F (70°C) or 20 minutes in
176°F (80°C) degree.
Do not wash the engine compart-
ment, using water. Water may
cause an electric shock and dam-
age the electronic components.
NOTICE
Never use the package mod-
ules (high voltage battery,
inverter and converter) for any
other purpose.
Do not use an unauthorized
battery charger to charge the
high voltage battery. Doing so
may result in death or serious
injury.
Never place the high voltage
system near or in a fire.
Never drill into or strike the
package module. Otherwise, it
may be damaged. An electric
shock may occur, resulting in
serious injury or death.
WARNING
This hybrid vehicle uses the
hybrid battery system inverter
and converter to generate high
voltage. High voltage in the
hybrid battery system is very
dangerous and may cause
severe burns and electric shock.
This may result in serious injury
or death.
For your safety, never touch,
replace, disassemble or remove
the hybrid battery system
including components, cables
and connectors. Severe burns
or electric shock may result in
serious injury or death when
you fail to follow this warning.
When the hybrid battery sys-
tem operates, the hybrid bat-
tery system can be hot. Always
be careful because burns or
electric shock may be caused
by high voltage.
(Continued)
WARNING
Never assemble or disassemble
the high voltage battery system.
If you assemble or disassem-
ble the high voltage battery
system, the durability and per-
formance of the vehicle may be
damaged.
When you want to check the
high voltage battery system,
have the vehicle checked and
inspected by an authorized
HYUNDAI dealer.
Do not touch the high voltage
battery and high voltage cable
connected to motor (orange
color). Severe burns and elec-
tric shock may occur. For your
safety, do not touch the cover
of electronic components and
electronic cable. Do not remove
the cover of electronic compo-
nents and electronic cable. In
particular, never touch the high
voltage battery system when
the hybrid system in operation.
It may result in death or serious
injury.
WARNING

H52
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Information
Gradual capacity reduction of the
high voltage battery.
The high voltage Battery capacity
gradually reduces with time and use.
This is natural characteristic of the
high voltage batteries. The extent at
which capacity is reduced changes
drastically depending on the environ-
ment(ambient temperature, etc.) and
usage conditions such as how the vehi-
cle is driven and how the high voltage
battery is charged. Reduction of the
high voltage battery capacity is not
covered under warranty.
Safety Plug
i
Never touch the safety plug. The
safety plug is attached to high
voltage hybrid battery system.
(Continued)
(Continued)
Touching the safety plug will
result in death or serious injury.
Service personnel should fol-
low procedures in service man-
ual.
DANGER
OAEQ046018
■Hybrid vehicle
OAEQ048018
■Plug-in hybrid vehicle
(Continued)
Do not drop water or liquid on
to HPCU, HSG, motor and
fuses. The hybrid system com-
ponents are covered. If you
drop water or liquid on to
hybrid system components, it
may result in electric shock.

H53
High Voltage Battery Cooling
Duct
The high-voltage battery cooling duct
is located on the left side of the rear
seats.The cooling duct cools down the
high-voltage battery. When the high-
voltage battery cooling duct is
blocked, the high-voltage battery
may be overheated and the vehicle
performance may become limited
and set a hybrid warning lamp. Do
not obstruct the cooling duct with any
other objects.
OAE036024
■Hybrid vehicle
OAEPH036024
■Plug-in hybrid vehicle
Never clean the cooling duct
of the hybrid battery with a
wet cloth. If any water enters
in the cooling duct of the
hybrid battery, the hybrid bat-
tery may cause an electric
shock, serious damage, injury
or death.
The hybrid battery is com-
posed of lithium-ion polymer.
If the hybrid battery is improp-
erly handled, it is dangerous
to the environment. Also it
may cause electrical shock
and severe burns, resulting in
serious injury or death.
Do not spill liquid over the
cooling duct of the hybrid bat-
tery. Doing so is very danger-
ous. It may cause electric
shock or serious injury.
Do not cover the cooling duct
with objects.
(Continued)
WARNING