2021 HYUNDAI TUCSON HYBRID check engine light

Instrument cluster
4-22
SPORT Mode indicator light
This indicator light illuminates
When you select "SPORT" mode as drive
mode.
For 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.
For 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.

04
4-23
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, we recommend that you 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.
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,
we recommend that you have the vehicle
inspected by an authorized HYUNDAI
dealer.

Instrument cluster
4-24
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/liftgate
is 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
4-25
Wiper/Lights display
„„Wiper„„Lights
OJX1049008LOJX1049007L
• This indicator displays which wiper
speed is selected using the wiper
control.
• This indicator displays which exterior
light is selected using the lighting
control.
You can activate or deactivate Wiper/
Lights display function from the User
Settings menu in the cluster LCD display.
- Setup → User settings → Cluster →
Wiper/Lights display
Low washer fluid (if equipped)
This message is displayed if the washer
fluid level in the reservoir is nearly empty.
Have the washer fluid reservoir refilled.
Low fuel
This message is displayed if the fuel tank
is almost out of fuel.
When this message is displayed, the low
fuel level warning light in the cluster will
come on.
It is recommended to look for the nearest
fueling station and refuel as soon as
possible.
NOTICE
Do not drive the vehicle with low fuel.
Hybrid battery damage may occur
when the fuel tank is completely empty.
Engine has overheated
This message is displayed when the
engine coolant temperature is above
248°F (120°C). This means that the
engine is overheated and may be
damaged.
If your vehicle is overheated, refer to
“Overheating” section in chapter 8.
Check exhaust system (if equipped)
This message is displayed if there is a
problem with the GPF system. At this
time, the GPF warning light will also
blink. If this occurs, we recommend that
you have the GPF system checked by an
authorized HYUNDAI dealer.
GPF : Gasoline Particulate Filter
Check headlight (if equipped)
This message is displayed if the
headlights are not operating properly. A
headlight bulb may need to be replaced.
Make sure to replace the burned out
bulb with a new one of the same wattage
rating.
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.

Convenient features
5-4
Remote key (if equipped)
OIG046001
Your HYUNDAI uses a remote key, which
you can use to lock or unlock the driver
and passenger doors or the liftgate.
1.
Door Lock
2.
Door Unlock
3.
Liftga

te Unlock
4.
Panic
Locking
To lock :
1.
Close all doors, engine hood and
tailga

te.
2.
Press the Door L

ock button (1) on the
remote key.
3.
The doors will lock. The hazar

d
warning lights will blink.
4.
Make sur

e the doors are locked by
checking the indicator light on the
driver side door lock button.
WARNING
Do not leave the Smart Key in
your vehicle with children that are
unattended or unsupervised.
Children could inadvertently press
the Engine Start/Stop button or could
operate the power windows or other
vehicle controls or even cause the
vehicle to move. This could result in
serious injury or death.
Unlocking
To unlock:
1.
Press the Door Unlock butt

on (2) on
the remote key.
2.
The doors will unlock. The hazar

d
warning lights will blink two times.
Information
After unlocking the doors, the doors will
lock automatically after 30 seconds unless
a door is opened.
Accessing your vehicle

Convenient features
5-8
Locking your vehicle (Button type)
ODN8059001
To lock :
1.
Close all doors, engine hood and
lift
gate.
2.
Carry the smart ke

y.
3.
Either press the door handle butt

on
or press the Door Lock button on the
smart key.
4.
The hazard w

arning lights will blink.
Also, the side view mirror will fold,
if
‘Con

venience
→ W
elcome
mirr
or/
light
→ On door unlock or On driv

er
approach

’ is selected from the User
Settings mode on the LCD display. For
more details, refer to “LCD Display”
in chapter 4.
5.
Make sur

e the doors are locked by
checking the position of the indicator
light on the driver side door lock
button.
Locking your vehicle (Touch sensor
type) (if equipped)
ODN8059236
1. Make sure that all doors are closed.
2.
While having the Smart K
ey in your
possession, touch the outer part of
the door handle on or near the handle
detent for about 1 second or until you
hear the door locks actuate.
3.
The doors will be lock

ed. If the liftgate
was open, then when the liftgate is
closed it will be locked also.
The chime will sound once and the
hazard warning lights will blink.
• The door handle button will only
operate when the smart key is within
28~40 inches (0.7~1 m) from the
outside door handle.
• Make sure the doors are locked by
pulling the door handle. If you locked
the door with the touch sensor on
the door handle, the doors cannot
be unlocked with the sensor within 3
seconds.

Convenient features
5-22
Remote Start with Digital Key
• Using the Hyundai Digital Key app
on your phone, press the Door Lock
button and then press the Remote
Start button (buttons must be pressed
within about 4 seconds). If all the
doors of your vehicle are closed
(including the hood and the liftgate),
the engine will be automatically
started.
Note that when the remote start
feature is activated, the hazard
warning lights will blink two times
and a chime will sound before engine
startup. Also note the following:
• The climate control system will come
on using the same settings from when
you last used the vehicle
• To turn off the engine, press the
Remote Engine Stop button within the
Hyundai Digital Key app.
• The engine will remain running for
approximately 10 minutes, and then
engine will automatically shut OFF.
• To keep the engine running, access
the vehicle and place the smartphone
on the wireless charging pad
(authentication pad) while the engine
is still in remote engine-ON mode.
For more information, refer to the Engine
Start/Stop button in chapter 6. Vehicle information Display
The digital key application displays
the vehicle information such as
driving or door conditions through the
communication with the vehicle.
•
How to check : Select the vehicle
what you want to check and touch
the vehicle image, then vehicle
information display page will be
shown.
• Contents : accumulated odometer,
latest fuel economy, driving range,
fuel remaining, tire pressure, doors
lock/unlock status and last data
updated time.
ÃNo

te that displayed vehicle data may
be slightly different from the current
vehicle condition
à For mor

e information, please refer to
the ‘Tutorial’ on your Digital key app.

05
5-27
Before you leave your vehicle, verify
that your vehicle is locked. When using
your NFC card key on the front door
handle, listen to hear that the door lock
has actuated, and then pull the handle
within 3 seconds to confirm the doors
are locked.
Inoperable condition
When using the NFC card key to lock or
unlock your vehicle, be sure to touch
the card key near the center of the door
handle to enable the sensor to activate.
Note that you must take the card out of
your wallet or purse to use the card key
correctly. If the card key is not touching
the door handle sensor or is in close
proximity to other NFC-enabled cards, it
may not work.
Note that if you attempt to use the
NFC card key to lock the doors, the
doors will not lock under the following
circumstances:
• The Smart Key is in the vehicle
• The Engine Start/Stop button is in the
ACC or ON position
• Any of the doors are open (except for
the liftgate)
If this occurs, then a chime will sound
for about 3 seconds. Check the vehicle
before attempting to lock the car again.
If you have difficulty locking or unlocking
the vehicle using the NFC card key,
remove the card key away from the door
handle sensor for a few seconds (card
key must be more than 4 inches away)
and then retry.
If the card key is damaged or bent, the
sensor on the door handle may not
properly detect the card key. If this
occurs contact your authorized Hyundai
dealer for a card key replacement.
Be careful not to damage the card
key or expose the card key to extreme
temperatures or direct sunlight for long
periods of time. Note that when the doors have been
unlocked using the NFC digital card key,
the Lock/Unlock switch on the driver
door may not be immediately available.
(If you attempt to lock the doors using
the driver door lock switch, the doors will
lock and then immediately unlock when
you close the door.)