2022 HYUNDAI TUCSON HYBRID Owners Manual

01
1-13
Warning and indicator lights
Ready indicator
This indicator illuminates:
When the vehicle is ready to be driven.
-ON : Normal driving is possible.
-OFF : Normal driving is not possible,
or a problem has occurred.
-Blinking : Emergency driving.
When the ready indicator goes OFF
or blinks, there is a problem with the
system. If this occurs, we recommend
that you have your vehicle inspected by
an authorized HYUNDAI dealer.
EV mode indicator
This indicator illuminates:
When the vehicle is driven by the electric
motor.
Service warning light
This warning light illuminates:
• When you set the ignition switch or
the Engine Start/Stop button to the
ON position.
-The service warning light illuminates
for approximately 3 seconds and
then turns off when all checks have
been performed.
• When there is a problem with the
hybrid vehicle control system or
hardware.
When the warning light illuminates
while driving, or does not go OFF after
starting the vehicle, we recommend that
you have the vehicle inspected by an
authorized HYUNDAI dealer.
Regenerative brake warning
light
(yellow)
This warning light illuminates:
When the regenerative brake does not
operate and the brake does not perform
well. This causes the Brake Warning
light (red) and Regenerative Brake
Warning Light (yellow) to illuminate
simultaneously.
If this occurs, drive safely and have
your vehicle inspected by an authorized
HYUNDAI dealer. The operation of the
brake pedal may be more difficult than
normal and the braking distance may
increase.

Foreword / Hybrid System Overview
1-14
LCD display messages
Ready to start driving
OOSHQ019003L
This message is displayed when the
vehicle is ready to be driven.
Check regenerative brakes
OOSHQ019004L
This message is displayed when
the brake performance is low or the
regenerative brake does not work
properly due to a failure in the brake
system.
If this occurs, it may take longer for the
brake pedal to operate and the braking
distance may become longer.
Stop vehicle and check brakes
OOSHQ019006L
This message is displayed when a failure
occurs in the brake system.
If this occurs, park the vehicle in a
safe location and we recommend that
you tow your vehicle to the nearest
authorized HYUNDAI dealer and have the
vehicle inspected.
Check Hybrid system
OOSHQ019005L
This message is displayed when there is a
problem with the hybrid control system.
Refrain from driving when the warning
message is displayed.
If this occurs, we recommend that
you have the vehicle inspected by an
authorized HYUNDAI dealer.

01
1-15
Stop safely and check Hybrid system
OOSHQ019007L
This message is displayed when there
is a problem with the hybrid control
system. The “
” indicator will blink
and a warning chime will sound for
approximately 10 seconds until the
problem is solved. Refrain from driving
when the warning message is displayed.
If this occurs, we recommend that
you have the vehicle inspected by an
authorized HYUNDAI dealer.
Check Hybrid system. Do not start
engine
OOSHQ019008L
This message is displayed when the
hybrid battery power (SOC) level is low.
A warning chime will sound until the
problem is solved. Refrain from driving
when the warning message is displayed.
If this occurs, we recommend that
you have the vehicle inspected by an
authorized HYUNDAI dealer.
Stop safely and check power supply
OOSHQ019009L
This message is displayed when a failure
occurs in the power supply system.
If this occurs, park the vehicle in a safe
location and tow your vehicle to the
nearest authorized HYUNDAI dealer and
have the vehicle inspected.
Check virtual engine sound system
OOSHQ019010L
This message is displayed when there is
a problem with the Virtual Engine Sound
System (VESS).
If this occurs, we recommend that
you have the vehicle inspected by an
authorized HYUNDAI dealer.

Foreword / Hybrid System Overview
1-16
Refill inverter coolant
OOSHQ019012L
This message is displayed when the
inverter coolant is nearly empty.
You should refill the inverter coolant.
Park with engine On to charge
battery
OOSHQ019013L
This message is displayed when the
hybrid battery power (SOC) level is low.
If this occurs, park the vehicle in a safe
location and wait until the hybrid battery
is charged.
Start engine to avoid battery
discharge
OOSHQ019027L
This message is displayed to inform the
driver the 12V battery may be discharged
if the ignition switch is in ON position
(without the
indicator ON).
Set the vehicle to the ready () mode
to prevent the 12V battery from being
discharged.

01
1-17
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
ONX4E040024
The vehicle is stopped.
(No energy flow)
EV propulsion
ONX4EHQ010002
Only the motor power is used to drive the
vehicle.
(Battery → Wheel)
Power assist
ONX4EHQ010003
Both the motor and the engine power are
used to drive the vehicle.
(Battery & Engine → Wheel)
Engine only propulsion
ONX4EHQ010004
Only the engine power is used to drive
the vehicle.
(Engine → Wheel)

Foreword / Hybrid System Overview
1-18
Engine generation
ONX4EHQ010005
When the vehicle is stopped, the high-
voltage battery is charged up by the
engine.
(Engine → Battery)
Regeneration
ONX4EHQ010006
The high-voltage battery is charged up
by the regenerative brake system.
(Wheel → Battery)
Engine brake
ONX4EHQ010007
The engine braking is used to decelerate
the vehicle.
(Wheel → Engine)
Power reserve
ONX4EHQ010008
The engine is simultaneously used to
drive the vehicle and to charge up the
high-voltage battery.
(Engine → Wheel & Battery)

01
1-19
Engine generation/motor drive
ONX4EHQ010009
The engine charges up the high-voltage
battery. The motor power is used to drive
the vehicle.
(Engine → Battery → Wheel)
Engine generation/regeneration
ONX4E040025
The engine and regenerative brake
system charges up the high-voltage
battery.
(Engine & Wheel → Battery)
Engine brake/regeneration
ONX4EHQ010010
The engine braking is simultaneously
used to decelerate the vehicle and to
charge up the high-voltage battery.
(Wheel → Engine & Battery)

Foreword / Hybrid System Overview
1-20
e-Handling (Electrically Assisted
Handling Performance)/e-EHA
(Electrically Evasive Handling
Assist)
e-Handling controls the electric motor
while turning around to improve the
handling performance, driving safety,
convenience and ride comfort.
e-EHA connects FCA (Forward Collision
Avoidance Assist) and the electric motor
to provide assists to avoid collision
so that prompt collision avoidance is
available while FCA warning appears.
Ãe-Handling stands for Electrically
Assisted Handling Performance.
Ãe-EHA means Electrically Evasive
Handling Assist.
Operation condition
e-Handling starts to work by identifying
enter or exit condition if the driver
operates the steering wheel over a
certain level when the vehicle speed is
between 40km/h and 120km/h.
e-EHA operates if there is urgent steering
wheel operation while FCA (Forward
Collision Avoidance Assist) warning
appears
Operation cancel
-When ESC operates
-When ABS works
CAUTION
The system does not work under the
following conditions.
-When the ESC operation stop light
is on
-When it does not work due to a
malfunction of electronic device
-When the manual transmission mode
is set
-The gear shift is not in D (Drive)
Information
Please refer to the chapter 6 “Paddle shift
(manual transmission mode) of automatic
transmission (electronic transmission
button)”
HYBRID DRIVING SYSTEM