battery HYUNDAI TUCSON HYBRID 2023 Owner's Guide

01
1-61
Charging stopped. Check the cable
connection
OOSEV048196LOOSEV048196L
This warning message is displayed
when charging is stopped because the
charging connector is not correctly
connected to the charging inlet
In this case, separate the charging
connector and re-connect it and check
whether there is any problem (external
damage, foreign substances, etc.) with
the charging connector and charging
inlet.
If the same problem occurs when
charging the vehicle with a replaced
charging cable or genuine HYUNDAI
portable charger, have your vehicle
inspected by an authorized HYUNDAI
dealer.
Remaining time (Plug-in hybrid
vehicle)
OAEPHQ049818LOAEPHQ049818L
This message is displayed to notify
the remaining time to fully charge the
battery.
Wait until fuel door opens (Plug-in
hybrid vehicle)
OAEPHQ049830LOAEPHQ049830L
This message is displayed when you
attempt to open the fuel filler door with
the fuel tank pressurized. Wait until the
fuel tank is depressurized.

01
1-63
Switching to Hybrid mode to allow
heating or air conditioning (Plug-in
hybrid vehicle)
OAEPHQ049842LOAEPHQ049842L
This message is displayed when the
vehicle automatically switches to
HEV mode to allow heating or air
conditioning. It is when the coolant
temperature is low (below -14°C) and the
driver turns on the heating or cooling
system.
If the coolant temperature gets higher
than -14°C or the driver turns off the
heating or cooling system the vehicle
returns to its default (EV) mode.
Maintaining Hybrid mode to allow
heating or air conditioning (Plug-in
hybrid vehicle)
OAEPHQ049841LOAEPHQ049841L
This message is displayed when the
vehicle maintains the HEV mode to allow
heating or air conditioning. The mode
does not change when the driver presses
the [HEV] button to switch from the HEV
mode to EV mode while the heating and
cooling system is on and the coolant
temperature is below -14°C.
Low/High System Temp. Maintaining
Hybrid mode (Plug-in hybrid vehicle)
OAEPHQ049834LOAEPHQ049834LOAEPHQ049835LOAEPHQ049835L
This message is displayed when the
temperature of the high-voltage
(hybrid) battery is too low or too high.
This warning message is to protect the
battery and the hybrid system.

Foreword/Starting your Hybrid/Plug-in hybrid vehicle1-64
Low/High System Temp. Switching
to Hybrid mode (Plug-in hybrid
vehicle)
OAEPHQ049836LOAEPHQ049836LOAEPHQ049837LOAEPHQ049837L
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)
OAEPHQ049838LOAEPHQ049838L
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 protect
engine (Plug-in hybrid vehicle)
OAEPHQ049839LOAEPHQ049839L
This message is displayed when
the [HEV] button is pressed but it is
impossible to switch from the HEV mode
to EV mode due to engine lubrication.
Exit SPORT mode to switch to EV
(Plug-in hybrid vehicle)
OAEPHQ049840LOAEPHQ049840L
This message is displayed when [HEV]
button is pressed but it is impossible to
switch from the HEV mode to EV mode
because the SPORT mode is engaged.

01
1-65
Energy Flow
The hybrid system informs the drivers its
energy flow in various operating modes.
While driving, the current energy flow is
specified in 11 modes.
Vehicle stop
ONX4E040024ONX4E040024
The vehicle is stopped.
(No energy flow)
EV propulsion
ONX4EHQ010002ONX4EHQ010002
Only the motor power is used to drive the
vehicle.
(Battery
Ÿ Wheel)
Power assist
ONX4EHQ010003ONX4EHQ010003
Both the motor and the engine power are
used to drive the vehicle.
(Battery & Engine
Ÿ Wheel)
Engine only propulsion
ONX4EHQ010004ONX4EHQ010004
Only the engine power is used to drive
the vehicle.
(Engine
Ÿ Wheel)

Foreword/Starting your Hybrid/Plug-in hybrid vehicle1-66
Engine generation
ONX4EHQ010005ONX4EHQ010005
When the vehicle is stopped, the high-
voltage battery is charged up by the
engine.
(Engine
Ÿ Battery)
Regeneration
ONX4EHQ010006ONX4EHQ010006
The high-voltage battery is charged up
by the regenerative brake system.
(Wheel
Ÿ Battery)
Engine brake
ONX4EHQ010007ONX4EHQ010007
The engine braking is used to decelerate
the vehicle.
(Wheel
Ÿ Engine)
Power reserve
ONX4EHQ010008ONX4EHQ010008
The engine is simultaneously used to
drive the vehicle and to charge up the
high-voltage battery.
(Engine
Ÿ Wheel & Battery)

01
1-67
Engine generation/motor drive
ONX4EHQ010009ONX4EHQ010009
The engine charges up the high-voltage
battery. The motor power is used to drive
the vehicle.
(Engine
Ÿ Battery
Ÿ Wheel)
Engine generation/regeneration
ONX4E040025ONX4E040025
The engine and regenerative brake
system charges up the high-voltage
battery.
(Engine & Wheel
Ÿ Battery)
Engine brake/regeneration
ONX4EHQ010010ONX4EHQ010010
The engine braking is simultaneously
used to decelerate the vehicle and to
charge up the high-voltage battery.
(Wheel
Ÿ Engine & Battery)

01
1-69
SAFETY PRECAUTIONS FOR HYBRID SYSTEM
Hybrid Vehicle Components
High voltage battery system
„„HPCU (Hybrid Power Control Unit) HPCU (Hybrid Power Control Unit) **11
OTMHQ010013OTMHQ010013
„„High voltage battery system High voltage battery system *2 *2 (hybrid)(hybrid)
ONX4HQ010012ONX4HQ010012
„„High voltage battery system *High voltage battery system *33 (Plug-in hybrid (Plug-in hybrid vehicle)vehicle)
ONX4EPHQ011017LONX4EPHQ011017L
*1 :
Located in the engine compartment
*2 : Located under rear seat
*3 : Located under the front seat
WARNING
Never touch orange colored or high
voltage labeled components, including
wires, cables, and connections. When
the insulators 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 carries high voltage.
Touching the HPCU may result in
electrocution, 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,
serious injury or death may occur.
CAUTION
• 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
flammable liquid in the passenger
compartment. It could cause
operational and safety degradation if
the liquid leaks and flows in the high
voltage battery.

Foreword/Starting your Hybrid/Plug-in hybrid vehicle1-70
„„Drive motor Drive motor *4*4
OTMHQ010015OTMHQ010015
*4 :
Located in the engine compartment
WARNING
• 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 assemble
the high voltage battery system.
Doing so may result in electric shock,
causing death or serious injury.
• If you disassemble or assemble
hybrid system components
improperly, it may damage the
performance and reliability 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 examined by a doctor as
soon as possible.
WARNING
Never assemble or disassemble the
high voltage battery system.
• If you assemble or disassemble the
high voltage battery system, the
durability and performance of the
vehicle may be damaged.
• When you want to check the high
voltage battery system, have the
vehicle 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 electric shock may
occur. For your safety, do not touch
the cover of electronic components
and electronic cable. Do not remove
the cover of electronic components
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
• Never use the package modules
(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.

01
1-71
NOTICE
• 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
compartment, using water. Water
may cause an electric shock and
damage the electronic components.
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 system
operates, the hybrid battery system
can be hot. Always be careful
because burns or electric shock may
be caused by high voltage.
• Do not spill liquid on the HPCU, HSG,
motor and fuses. If the hybrid system
components come in contact with
liquid, it may result in electric shock.
Service Interlock Connector
ONX4HQ010013ONX4HQ010013
In case of emergency, cut the service
interlock connector cable to isolate the
high voltage of the battery.
WARNING
Never disconnect the service interlock
connector or cut the wire except in an
emergency situation.
Serious problems may occur, such as
the vehicle will not start.
Hybrid Battery Cooling Duct
ONX4HQ010014ONX4HQ010014
The hybrid battery cooling duct is
located of the Passenger’s seat. The
cooling duct cools down the hybrid
battery. When the hybrid battery cooling
duct is blocked, the hybrid battery may
be overheated.
Clean the cooling duct for the hybrid
battery with a dry cloth on a regular
basis.

Foreword/Starting your Hybrid/Plug-in hybrid vehicle1-72
WARNING
• Never clean the cooling duct of the
hybrid battery with a wet cloth. If
any water enters the cooling duct
of the hybrid battery, the hybrid
battery may cause an electric shock,
resulting in a serious damage, an
injury or a death.
• The hybrid battery is composed of
lithium-ion polymer. If the hybrid
battery is improperly handled, it is
dangerous to the environment. Also
it may cause electrical shock and
severe burns, resulting in a serious
injury or a death.
• Do not spill liquid over the cooling
duct of the hybrid battery. Doing
so is very dangerous. It may cause
electric shock or serious injury.
• Do not cover the cooling duct with
objects.
• Do not put any objects into the
cooling duct of the hybrid battery.
Doing so may cause loss of cooling
duct volume to the hybrid battery.
When the cooling duct is blocked
with any objects, immediately
contact your HYUNDAI dealer.
• Never place a container of liquid on
or near the cooling duct. If the liquid
spills, the hybrid battery located in
the under floor may be damaged.
• Do not obstruct the cooling duct
with any other objects.
If an accident occurs
WARNING
• For your safety, do not touch the
high voltage cables, connectors
and package modules. High voltage
components are orange in color.
• Exposed cables or wires may be
visible inside or outside of the
vehicle. Never touch the wires or
cables, because an electrical shock,
an injury, or a death may occur.
• Any gas or electrolyte leakage from
your vehicle is not only poisonous
but also flammable. Upon witnessing
one of those, open the windows,
and remain a safe distance from the
vehicle out of the road.
Immediately call an emergency
services or contact an authorized
HYUNDAI dealer and advise them
that a hybrid vehicle is involved.
• When the vehicle is severely
damaged, remain a safe distance of
49 feet or more between your vehicle
and other vehicles/flammables.