battery HYUNDAI TUCSON HYBRID 2021 User Guide

01
1-21
SAFETY PRECAUTIONS FOR HYBRID SYSTEM
Hybrid vehicle components
High voltage battery system
„„HPCU (Hybrid Power Control Unit) *1
OTMHQ010013
„„High voltage battery system *2
ONX4HQ010012
*1 : Located in the engine compartment
*2 : Located under the rear 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.
„„Drive motor *3
OTMHQ010015
*3 : Located in the engine compartment

Foreword / Hybrid System Overview
1-22
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
1-23
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
ONX4HQ010013
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
ONX4HQ010014
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 / Hybrid System Overview
1-24
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.

01
1-25
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 “Jump starting”
section in chapter 8.
Before jump-starting the vehicle,
check the fuel level and the exact
procedure to jump start. For further
details, refer to “Jump starting”
section in chapter 8. 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.

2-4
Vehicle Information, Consumer Information and Reporting Safety Defects
The actual shape may differ from the illustration.
ONX4H010003N
1. Inside door handle ................................5-34
2. Power window switches ......................5-58
3. Power window lock switch .................5-59
4. Side view mirror folding switch ...........5-56
5. Side view mirror control switch ...........5-56
6. Central door lock switch ......................5-34
7. Instrument panel illumination control
switch
......................................................4-5
8. Power Liftgate button ...........................5-71
9. ESC OFF button ....................................6-32
10. 12V battery reset switch .........................8-5
11. Steering wheel .......................................5-41
12. Steering wheel tilt/telescopic lever ....5-42
13. Fuse box ................................................9-41
14. Hood release lever ................................5-67
15. Seat .........................................................3-3
INTERIOR OVERVIEW

Seats & Safety System
3-8
Power adjustment (if equipped)
The front seat can be adjusted by using
the control switches located on the
outside of the seat cushion. Before
driving, adjust the seat to the proper
position so that you can easily control
the steering wheel, foot pedals and
controls on the instrument panel.
WARNING
NEVER allow children in the vehicle
unattended. The power seats are
operable when the vehicle is turned off.
NOTICE
To prevent damage to the seats:
• Always stop adjusting the seats when
the seat has been adjusted as far
forward or rearward as possible.
• Do not adjust the seats longer than
necessary when the vehicle is turned
off. This may result in unnecessary
battery drain.
• Do not operate two or more seats at
the same time. This may result in an
electrical malfunction.
ONX4030006
Forward and rearward adjustment
To move the seat forward or rearward:
1.
Push the contr

ol switch forward or
rearward.
2.
Release the s

witch once the seat
reaches the desired position.
ONX4030007
Seatback angle adjustment
To recline the seatback:
1.
Push the contr

ol switch forward or
rearward.
2.
Release the s

witch once the seatback
reaches the desired position.

4. Instrument cluster
Instrument cluster
Instrument cluster ........................................................................\
....................4-4Instrument cluster control ........................................................................\
...................4-5
Instrument panel illumination ........................................................................\
...........4-5
Gauges and meters ........................................................................\
..............................4-5
Speedometer ........................................................................\
.....................................4-5
Power gauge ........................................................................\
.....................................4-6
Fuel gauge ........................................................................\
.........................................4-6
Hybrid battery SOC (State of Charge) gauge ...........................................................4 -7
Outside temperature gauge ........................................................................\
..............4 -7
Odometer ........................................................................\
..........................................4-8
Distance to empty ........................................................................\
............................4-8
Fuel economy (for 10.25-inch cluster) ....................................................................4-9
Transmission shift indicator ........................................................................\
................4-9
Automatic transmission shift indicator ...................................................................4-9
Warning and indicator lights ........................................................................\
.............4-10
Seat belt warning light ........................................................................\
....................4-10
Air bag warning light ........................................................................\
.......................4-10
Parking brake & Brake fluid warning light ..............................................................4-10
Regenerative brake warning light ........................................................................\
....4-11
Anti-lock Brake System (ABS) warning light ...........................................................4-11
Electronic Brake Force Distribution (EBD) system warning light .........................4-12
Electric Power Steering (EPS) warning light ..........................................................4-12
Malfunction Indicator Lamp (MIL) ........................................................................\
..4-13
Electronic Parking Brake (EPB) warning light ........................................................4-13
AUTO HOLD indicator light ........................................................................\
.............4-13
Charging system warning light ........................................................................\
.......4-14
Engine oil pressure warning light ........................................................................\
...4-14
Low fuel level warning light ........................................................................\
............4-15
Service warning light ........................................................................\
.......................4-15
Exhaust system (GPF) warning light .......................................................................4-15
Master warning light ........................................................................\
........................4-16
Low tire pressure warning light ........................................................................\
......4-16
Forward Safety warning light ........................................................................\
...........4-17
Lane Safety indicator light ........................................................................\
...............4-17
4 Wheel Drive (4WD) warning light ........................................................................\
.4-17
4 Wheel Drive (4WD) LOCK indicator light ..............................................................4-17
LED headlight warning light ........................................................................\
............4-18
Icy road warning light ........................................................................\
......................4-18
Ready indicator ........................................................................\
................................4-19
EV mode indicator ........................................................................\
...........................4-19
Electronic Stability Control (ESC) indicator light ...................................................4-19
Electronic Stability Control (ESC) OFF indicator light ..........................................4-19
4

Immobilizer indicator light (with smart key) ..........................................................4-20
Downhill Brake Control (DBC) indicator light ........................................................4-20
Turn signal indicator light ........................................................................\
.................4-21
High beam indicator light ........................................................................\
................4-21
Low beam indicator light ........................................................................\
.................4-21
Light ON indicator light ........................................................................\
....................4-21
High Beam Assist indicator light ........................................................................\
......4-21
Cruise indicator light ........................................................................\
.......................4-21
SPORT Mode indicator light ........................................................................\
............4-22
ECO Mode indicator light ........................................................................\
................4-22
SMART Mode indicator light ........................................................................\
...........4-22
LCD display messages ........................................................................\
.......................4-22
Shift to P ........................................................................\
...........................................4-22
Low key battery ........................................................................\
................................4-22
Press START button while turning wheel ...............................................................4-22
Check steering wheel lock system ........................................................................\
.4-22
Press brake pedal to start engine ........................................................................\
...4-23
Key not in vehicle ........................................................................\
.............................4-23
Key not detected ........................................................................\
..............................4-23
Press START button again ........................................................................\
...............4-23
Press START button with key ........................................................................\
...........4-23
Check BRAKE SWITCH fuse
........................................................................\
............4-23
12V battery discharging due to additional electrical devices ...............................4-23
Door, Hood, Liftgate open indicator .......................................................................4-24
Sunroof open indicator ........................................................................\
....................4-24
Low pressure ........................................................................\
....................................4-24
Wiper/Lights display ........................................................................\
........................4-25
Low washer fluid ........................................................................\
..............................4-25
Low fuel ........................................................................\
............................................4-25
Engine has overheated ........................................................................\
....................4-25
Check exhaust system ........................................................................\
.....................4-25
Check headlight ........................................................................\
...............................4-25
Check turn signal ........................................................................\
.............................4-25
Check brake light ........................................................................\
.............................4-25
Check headlamp LED ........................................................................\
......................4-26
Check Active Air Flap system ........................................................................\
..........4-26
Ready to start driving ........................................................................\
......................4-26
Check regenerative brakes ........................................................................\
.............. 4-26
Stop vehicle and check brakes
........................................................................\
.......4-26
Check Hybrid system ........................................................................\
.......................4-26
Stop safely and check Hybrid system ....................................................................4-26
Check Hybrid system. Do not start engine ............................................................4-26
4

4. Instrument cluster
Stop safely and check power supply ......................................................................4-27
Check virtual engine sound system ........................................................................\
4-27
Refuel to prevent Hybrid battery damage
.............................................................4-27
Refill inverter coolant ........................................................................\
......................4-27
Park with engine On to charge battery ..................................................................4-27
Start engine to avoid battery discharge .................................................................4-27
LCD display ........................................................................\
..............................4-28LCD display control ........................................................................\
............................4-28
View modes ........................................................................\
........................................4-29
Trip computer mode ........................................................................\
.......................4-30
Turn By Turn (TBT) mode ........................................................................\
................4-30
Driving Assist mode ........................................................................\
........................4-30
Master warning group ........................................................................\
.....................4-31
User settings mode ........................................................................\
..........................4-33
Trip computer (4.2-inch) ........................................................................\
...................4-40
Trip modes ........................................................................\
.......................................4-40
Trip computer (10.25-inch) ........................................................................\
...............4-43
Trip modes ........................................................................\
.......................................4-43
4