check engine HYUNDAI TUCSON HYBRID 2023 User Guide

04
4-7
Hybrid battery SOC (State of Charge)
gauge
„4.2-Inch„10.25-inch
ONX4EH040008OCN7H040003
This gauge indicates the remaining
hybrid battery power. If the SOC is
near the “L (Low)” level, the vehicle
automatically operates the engine to
charge the battery.
However, if the Service Indicator (
)
and Malfunction Indicator Lamp (MIL)
(
) turn on when the SOC gauge is near
the “L (Low)” level, we recommend the
vehicle be checked by an authorized
HYUNDAI dealer.
NOTICE
Never try to start the vehicle if the fuel
tank is empty. In this condition, the
engine cannot charge the high voltage
battery of the hybrid system. If you
try to start the vehicle when the fuel
is empty, the high voltage battery will
become discharged and be damaged.
Plug-in hybrid mode indicator
„AUTO mode
‡Type A ‡Type B
ONX4EPHQ011013LONX4PHQ011014N
„CS mode
‡Type A ‡Type B
ONX4EPHQ011015LONX4PHQ011016N

[CD (Charge Depleting, Electric)
mode : The high-voltage (hybrid)
battery is used to drive the vehicle.

[ AUTO mode : CD mode and CS mode
are selected automatically depending
on road conditions.

[ CS (Charge Sustaining, Hybrid) mode :
The high-voltage (hybrid) battery and
gasoline engine is used to drive the
vehicle.
Information
Even when the battery charging rate
is high and driving in electric mode is
possible, engine may turn on in some areas
to protect the system.

Instrument Cluster4-10
Transmission Shift Indicator (if
equipped)
Automatic transmission shift
indicator
„4.2-Inch
OTM040016
„10.25-inch
OCN7040013N
The Transmission Shift Indicator is shown
in the upper corner of the LCD display to
indicate the current gear or Park(P).
Warning and Indicator Lights
Information
Make sure that all warning lights are OFF
after starting the engine. If any light is still
ON, this indicates a situation that needs
attention.
Seat belt warning light
This warning light informs the driver that
the seat belt is not fastened.
For more details, refer to “Seat Belts”
section in chapter 3.
Air bag warning light
This warning light illuminates:

[ When y
ou set the ignition switch or
the Engine Start/Stop button to the
ON position.
- The air bag warning light illuminates for about 3 ~ 6 seconds and then
turns off when all checks have been
performed.

[ The air bag warning light will remain
illuminated if there is a malfunction
with the Safety Restraint System (SRS)
air bag operation.
If the Air Bag warning light remains
illuminated while driving, have the
vehicle inspected by an authorized
HYUNDAI dealer.

04
4-11
Parking brake warning light
This warning light illuminates:

[When y
ou set the ignition switch or
the Engine Start/Stop button to the
ON position.

- The parking brake light illuminates
for about 3 seconds and will then
turn off once the parking brake is
released.

[ Whenever the parking brake is
applied.

[ Whenever the brake fluid level in the
reservoir is low.
- If the warning light illuminates with the parking brake released, it
indicates the brake fluid level in the
reservoir is low.

[ Whenever the regenerative brake
does not operate.
If the brake fluid level in the reservoir is
low:
1. Drive carefully to the nearest safe loca
tion and stop your vehicle.
2. With the engine stopped, check the brake fluid level immediately and add
fluid as required (For more details,
refer to “Brake Fluid” section in
chapter 9). After adding brake fluid,
check all brake components for fluid
leaks. If a brake fluid leak is found, or
if the warning light remains on, or if
the brakes do not operate properly, do
not drive the vehicle. Have the vehicle
inspected by an authorized HYUNDAI
dealer. Dual-diagonal braking system
Your vehicle is equipped with dual-
diagonal br

aking system. This means you
still have braking on two wheels even if
one of the dual systems should fail.
With only one of the dual systems
working, more than normal pedal travel
and greater pedal pressure is required to
stop the vehicle.
Also, the vehicle will not stop in as short
a distance with only a portion of the
brake system working.
If you experience a malfunction with
the brake system while driving, attempt
to slow your vehicle by coasting or
by using engine braking. You may be
able to reduce your vehicle speed by
manually downshifting to a lower gear.
Use Manual Shift Mode using either the
gear shift button or the paddle shifters (if
equipped) to shift to a lower gear.
WARNING
Parking Brake & Brake Fluid Warning
Light
Driving the vehicle with a warning light
ON is dangerous. If the Parking Brake
warning light illuminates with the
parking brake released, it indicates that
the brake fluid level is low.
If this occurs, have the vehicle
inspected by an authorized HYUNDAI
dealer.

04
4-15
AUTO HOLD indicator light
This indicator light illuminates:

[[Whit
e] When you activate the auto
hold system by pressing the AUTO
HOLD switch.

[ [Green] When you stop the vehicle
completely by depressing the brake
pedal with the Auto Hold system
activated.

[ [Yellow] Whenever there is a
malfunction with the Auto Hold
system.
If the AUTO HOLD indicator light
remains YELLOW while driving, have
the vehicle inspected by an authorized
HYUNDAI dealer.
For more details, refer to “Auto Hold”
section in chapter 6.
Charging system warning
light
This warning light illuminates:
When the battery is not being charged
while the engine is running. Immedia
tely
turn OFF all electrical accessories. Try
not to use electrically operated controls,
such as the power windows. Keep the
engine running.
Have the vehicle inspected by an
authorized HYUNDAI dealer as soon as
possible.
Engine oil pressure warning
light
This warning light illuminates:
When the engine oil pressure is low.
If the engine oil pressure is low:
1. Drive carefully to the nearest safe loca
tion and stop your vehicle.
2. Turn the engine off and check the engine oil level (For more details,
refer to “Engine Oil” section in
chapter 9). If the level is low, add oil
as required.
If the warning light remains on after
adding oil or if oil is not available, have
the vehicle inspected by an authorized
HYUNDAI dealer as soon as possible.
Continued driving with the warning light
on may cause engine failure.
Information
When engine oil pressure decreases due to
insufficient engine oil, etc., the Engine Oil
Pressure warning light will illuminate. In
addition, the enhanced engine protection
system which limits engine power will be
activated. When the engine oil pressure
is restored, the warning light and the
enhanced engine protection system will
turn off after the engine is restarted.

Instrument Cluster4-16
NOTICE
If the engine is not stopped
immediately after the Engine Oil
Pressure warning light is illuminated,
severe damage could result.
Low fuel level warning light
This warning light illuminates:
When the fuel tank is nearly empty.
A
dd fuel as soon as possible.
NOTICE
Driving with the Low Fuel Level warning
light on or with the fuel level below “E”
can cause the engine to misfire and
damage the catalytic converter.
Service warning light
This warning light illuminates:

[ When y
ou 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, have the vehicle inspected
by an authorized HYUNDAI dealer.
Charging Cable Connection
Indicator (Plug-in hybrid
vehicle)
This indicator illuminates in red when the
charging cable is connected.

04
4-23
SPORT Mode indicator light
This indicator light illuminates
When you select "SPORT" mode as drive
mode.
F
or more details, refer to "Drive Mode
Integrated Control System" in chapter
6.
SMART Mode indicator light
This indicator light illuminates:
When you select ''SMART" mode as drive
mode.
F

or more details, refer to "Drive Mode
Integrated Control System'' in chapter
6.
LCD Display Messages
Shift to P (if equipped)
This message is displayed if you try to
turn off the vehicle without the shift
button in the P (Park) position.
If this occurs, the Engine Start/Stop
button turns to the ACC position.
Low key battery (if equipped)
When the Engine Start/Stop button
is pressed to turn OFF the engine,
this message may be displayed. This
message indicates that the internal
battery of the Smart Key is low. Consider
replacing the Smart Key internal battery.
Press START button while turning
wheel (if equipped)
This message is displayed if the steering
wheel does not unlock normally when
the Engine Start/Stop button is pressed.
You should press the Engine Start/Stop
button while turning the steering wheel
right and left.
Check steering wheel lock system (if
equipped)
This message is displayed if the steering
wheel does not lock normally while the
Engine Start/Stop button is pressed to
the OFF position.

Instrument Cluster4-24
Press brake pedal to start engine (if
equipped)
This message is displayed if the Engine
Start/Stop button changes to the ACC
position twice by pressing the button
repeatedly without depressing the brake
pedal.
You can start the vehicle by depressing
the brake pedal and then pressing the
Engine Start/Stop button.
Key not in vehicle (if equipped)
This message is displayed if the smart
key is not in the vehicle when you press
the Engine Start/ Stop button.
When attempting to start the vehicle,
always have the smart key with you.
Key not detected (if equipped)
This message is displayed if the smart
key is not detected when you press the
Engine Start/Stop button.
Press START button again (if
equipped)
This message is displayed if you were
unable to start the vehicle when the
Engine Start/Stop button was pressed.
If this occurs, attempt to start the engine
by pressing the Engine Start/ Stop button
again.
If the warning message appears each
time you press the Engine Start/Stop
button, have the vehicle inspected by an
authorized HYUNDAI dealer.
Press START button with key (if
equipped)
This message is displayed if you press
the Engine Start/Stop button while the
warning message “Key not detected” is
displayed.
At this time, the immobilizer indicator
light blinks.
Check BRAKE SWITCH fuse (if
equipped)
This message is displayed if the brake
switch fuse is disconnected.
You need to replace the fuse with a new
one before starting the engine.
If that is not possible, you can start the
engine by pressing the Engine Start/
Stop button for 10 seconds in the ACC
position.
Shift to P to start engine
This message is displayed if you try to
start the engine in any other position
except P (Park).
Information
For your safety, we recommend that you
start the engine with the gear shifted to P
(Park).
12V battery discharging due to
additional electrical devices (if
equipped)
This message is displayed if the 12V
battery voltage is weak due to any
non-factory electrical accessories (ex.
dashboard camera) while parking. Be
careful that the battery is not discharged.
If the message appears after removing
the non-factory electrical accessories,
have the vehicle inspected by an
authorized HYUNDAI dealer.

04
4-25
Door, Hood, Liftgate open indicator
ONX4040009
This warning is displayed if any door or
the hood or the liftgate is left open. The
warning will indicate which door is open
in the display.
CAUTION
Before driving the vehicle, you should
confirm that the door, hood and liftgate
are fully closed. Also, check there is no
door/hood/liftgate open warning light
or message displayed on the instrument
cluster.
Sunroof open indicator (if equipped)
ONX4040010
This warning is displayed if you turn off
the engine when the sunroof is open.
Close the sunroof securely before leaving
your vehicle.
Low pressure
ONX4E040019
This warning message is displayed if the
tire pressure is low. The corresponding
tire on the vehicle will be illuminated.
For more details, refer to “Tire Pressure
Monitoring System (TPMS)” section in
chapter 8.

04
4-27
Check turn signal (if equipped)
This message is displayed if the turn
signal lamps are not operating properly.
A lamp may need to be replaced.
Make sure to replace the burned out
bulb with a new one of the same wattage
rating.
Check brake light (if equipped)
This message is displayed if the stop
lamps are not operating properly. A lamp
may need to be replaced.
Make sure to replace the burned out
bulb with a new one of the same wattage
rating.
Check headlight LED (if equipped)
This message is displayed if there is a
problem with the LED headlight. Have
the vehicle inspected by an authorized
HYUNDAI dealer.
Ready to start driving
This message is displayed when the
vehicle is ready to be driven.
Check regenerative brakes
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
This message is displayed when a failure
occurs in the brake 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 Hybrid system
This message is displayed when there
is a problem with the hybrid system.
Refrain from driving when the warning
message is displayed.
If this occurs, have the vehicle inspected
by an authorized HYUNDAI dealer.
Stop safely and check Hybrid system
This message is displayed when there is
a problem with the hybrid system. The
“
” indicator will blink and a warning
chime will sound until the problem is
solved. Refrain from driving when the
warning message is displayed.
If this occurs, have the vehicle inspected
by an authorized HYUNDAI dealer.
Check Hybrid system. Do not start
engine
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, have the vehicle inspected
by an authorized HYUNDAI dealer.

Instrument Cluster4-28
Stop safely and check power supply
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
This message is displayed when there is
a problem with the Virtual Engine Sound
System (VESS).
If this occurs, have the vehicle inspected
by an authorized HYUNDAI dealer.
Refill inverter coolant
This message is displayed when the
inverter coolant is nearly empty.
You should refill the inverter coolant.
Park with engine On to charge
battery
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
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.