2018 Hyundai Ioniq Hybrid Engine

H38
Check Virtual Engine Sound
System
This message is displayed when
there is a problem with the Virtual
Engine Sound System (VESS).
In this case, we recommend that you
have your vehicle inspected by an
authorized HYUNDAI dealer.
Unplug vehicle to start
(Plug-in hybrid vehicle)
This message is displayed when you
start the engine without unplugging
the charging cable. Unplug the
charging cable, and then start the
vehicle.
Remaining charge time
(Plug-in hybrid vehicle)
This message is displayed to notify
the remaining time to fully charge the
battery.
OLFP045258NOAEPH047193L
DRIVING THE HYBRID/PLUG-IN HYBRID VEHICLE (CONT.)
OLFH044543L

H42
Low/High System Temp.
Switching to Hybrid mode
(Plug-in hybrid vehicle)
This message is displayed when the
temperature of the high-voltage
(hybrid) battery is too low or high.
This warning message is to protect
the battery and the hybrid system.
Switching to Hybrid mode to
lubricate engine (Plug-in hybrid
vehicle)
This message is displayed when the
vehicle is automatically switched to
the HEV mode to lubricate engine
while the ignition switch is in the ON
position.
Maintaining Hybrid mode to pro-
tect engine (Plug-in hybrid vehi-
cle)
This message is displayed when the
[EV/HEV] button is pressed but it is
impossible to switch from the HEV
mode to EV mode due to engine
lubrication.
OAEPH047530LOAEPH047528L
DRIVING THE HYBRID/PLUG-IN HYBRID VEHICLE (CONT.)
OAEPH047205L/OAEPH047206L

H44
Power Assist
Both the motor and the engine power
are used to drive the vehicle.
(Battery & Engine ➞Wheel)
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)
DRIVING THE HYBRID/PLUG-IN HYBRID VEHICLE (CONT.)
OAE046151L/OAEQ046021L
■Type A■Type B
OAE046152L/OAEQ046022L
■Type A■Type B
OAE046153L/OAEQ046005L
■Type A■Type B

H45
Regeneration
The high-voltage battery is charged
up by the regenerative brake system.
(Wheel ➞Battery)
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)
OAE046152L/OAEQ046004L
■Type A■Type B
OAE046150L/OAEQ046002L
■Type A■Type B
OAE046154L/OAEQ046023L
■Type A■Type B

H46
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)
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)
DRIVING THE HYBRID/PLUG-IN HYBRID VEHICLE (CONT.)
OAE046155L/OAEQ046024L
■Type A■Type B
OAE046155L/OAEQ046007L
■Type A■Type B
OAE046151L/OAEQ046003L
■Type A■Type B

H47
High Voltage Battery System
OAEPHQ016040L
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 OAEQ046019
■ High voltage battery system *2■ HPCU (Hybrid Power Control Unit) *1
SAFETY PRECAUTIONS FOR HYBRID SYSTEM
Hybrid Vehicle Components Safety Precautions
*1: Located in the engine compartment
*
2: Located under the rear seats

H48
SAFETY PRECAUTIONS FOR HYBRID SYSTEM (CONT.)
*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 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
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 bat-
tery system, serious injury or
death may occur.
WARNING

H49
• When the vehicle is paint baked,
do not bake over 30 minutes in
70°C (158°F) or 20 minutes in
80°C (176°F) degree.
• Do not wash the engine compart-
ment, using water. Water may
cause an electric shock to and
damage the electronic.
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 locate 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
•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
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