2021 HYUNDAI I20 key battery

4-44
Safety system
B240B05LB240B05L
„„Passenger’s front air bagPassenger’s front air bag
WARNING
• Do not install or place any
accessories (drink holder, cassette
holder, sticker, etc.) on the front
passenger’s panel above the glove
box in a vehicle with a passenger’s
air bag. Such objects may become
dangerous projectiles and cause
injury if the passenger’s air bag
inflates.
• When installing a container of liquid
air freshener inside the vehicle, do
not place it near the instrument
cluster nor on the instrument panel
surface.
It may become a dangerous projectile
and cause injury if the passenger’s air
bag inflates.
WARNING
• If an air bag deploys, there may
be a loud noise followed by a fine
dust released in the vehicle. These
conditions are normal and are
not hazardous - the air bags are
packed in this fine powder. The dust
generated during air bag deployment
may cause skin or eye irritation as
well as aggravate asthma for some
persons. Always wash all exposed
skin areas thoroughly with cold water
and a mild soap after an accident in
which the air bags were deployed.
• The SRS can function only when the
ignition switch is in the ON position.
• Before you replace a fuse or
disconnect a battery terminal, turn
the ignition switch to the LOCK
position and remove the ignition
key. Never remove or replace the air
bag related fuse(s) when the ignition
switch is in the ON position. Failure to
heed this warning will cause the SRS
air bag warning light to illuminate.

5-17
05
This indicator light blinks:
• When the battery of the smart key is
weak.
- At this time, you can not start the
engine. However, you can start the
engine if you press the Engine Start/
Stop button with the smart key. (For
more details, refer to “Starting the
Engine” in chapter 6).
• When there is a malfunction with the
immobilizer system.
In this case, we recommend that you
have the vehicle inspected by an
authorized HYUNDAI dealer.
Turn Signal Indicator
Light
This indicator light blinks:
When you turn the turn signal light on.
If any of the following occurs, there
may a malfunction with the turn signal
system. In this case, we recommend that
you have the vehicle inspected by an
authorized HYUNDAI dealer.
- The indicator light does not blink but
illuminates.
- The indicator light blinks more rapidly.
- The indicator light does not illuminate
at all.
High Beam Indicator
Light
This indicator light illuminates:
• When the headlights are on and in the
high beam position
• When the turn signal lever is pulled
into the Flash-to-Pass position.
Light ON Indicator Light
This indicator light illuminates:
When the Parking (Position) lights or
headlights are on.
Front Fog Indicator Light
(if equipped)
This indicator light illuminates:
When the front fog lights are on.

5-19
05
LCD display messages
Key not in vehicle
(for smart key system)
This warning message is displayed if the
smart key is not in the vehicle when you
open or close door in the ACC position
or ON position. The warning sound is
heard when you close door without a
smart key in vehicle.
When attempting to start the vehicle
always have the smart key with you.
Key not detected
(for smart key system)
This warning message is displayed if
the smart key is not detected when you
press the Engine Start/Stop button.
Press START button with key (for
smart key system)
This warning 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.
Low key battery
(for smart key system)
This warning message is displayed if the
battery of the smart key is discharged
while changing the Engine Start/Stop
button to the OFF position.
Press brake pedal to start engine
(for smart key system and
Automatic transmission/Dual clutch
transmission)
This warning 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.
Press clutch pedal to start engine
(for smart key system and Manual
transmission)
This warning message is displayed if the
Engine Start/Stop button is in the ACC
position twice by pressing the button
repeatedly without depressing the clutch
pedal.
Depress the clutch pedal to start the
engine.
Press START button again
(for smart key system)
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
your vehicle inspected by an authorized
HYUNDAI dealer.

6-6
Convenient features
Remote key precautions
The remote key will not work if any of
the following occur:
• The key is in the ignition switch.
• You exceed the operating distance
limit (about 10 m [30 feet]).
• The remote key battery is weak.
• Other vehicles or objects may be
blocking the signal.
• The weather is extremely cold.
• The remote key is close to a radio
transmitter such as a radio station or
an airport which can interfere with
normal operation of the remote key.
When the remote key does not work
correctly, open and close the door
with the mechanical key. If you have
a problem with the remote key, it is
recommended that you contact an
authorized HYUNDAI dealer.
If the remote key is in close proximity to
your mobile phone, the signal could be
blocked by your mobile phones normal
operational signals. This is especially
important when the phone is active
such as making and receiving calls, text
messaging, and/or sending/receiving
emails. Avoid placing the remote key
and your mobile phone in the same
pants or jacket pocket and always try to
maintain an adequate distance between
the two devices.
i Information
Changes or modifications not expressly
approved by the party responsible
for compliance could void the user’s
authority to operate the equipment. If the
keyless entry system is inoperative due
to changes or modifications not expressly
approved by the party responsible for
compliance, it will not be covered by your
manufacturer’s vehicle warranty.
NOTICE
Keep the remote key away from
electromagnetic materials that blocks
electromagnetic waves to the key
surface.

6-7
06
Battery replacement
If the remote key is not working
properly, try replacing the battery with a
new one.
OIB044180OIB044180
Battery Type: CR2032
To replace the battery:
1. Insert a slim tool into the slot and
gently pry open the cover.
2. Remove the old battery and insert the
new battery. Make sure the battery
position is correct.
3. Reinstall the rear cover of the remote
key.
If you suspect your remote key might
have sustained some damage, or you
feel your remote key is not working
correctly, it is recommended that you
contact an authorized HYUNDAI dealer.
i Information
An inappropriately disposed
battery can be harmful to the
environment and human
health. Dispose the battery
according to your local law(s)
and regulation.
Smart key (if equipped)
OIB044179OIB044179
„„Type AType A
„„Type BType B
OQXI049001OQXI049001
Your HYUNDAI uses a Smart Key, which
you can use to lock or unlock a door
(and tailgate) and even start the engine.
1. Door Lock
2. Door Unlock
3. Tailgate Unlock
4. Panic (if equipped)

6-10
Convenient features
Start-up
You can start the engine without
inserting the key. For detailed
information refer to the Engine Start/
Stop button in chapter 6.
NOTICE
To prevent damaging the smart key:
• Keep the smart key away from water
or any liquid and fire. If the inside
of the smart key gets damp (due to
drinks or moisture), or is heated,
internal circuit may malfunction,
excluding the car from the warranty.
• Avoid dropping or throwing the
smart key.
• Protect the smart key from extreme
temperatures.
NOTICE
Always have the smart key with you
when leaving the vehicle. If the smart
key is left near the vehicle, the vehicle
battery may be discharged.
Mechanical key
If the Smart Key does not operate
normally, you can lock or unlock the
door by using the mechanical key.
OIB044175OIB044175
Press and hold the release button (1) and
remove the mechanical key (2). Insert
the mechanical key into the key hole on
the door.
To reinstall the mechanical key, put the
key into the hole and push it until a click
sound is heard.
Loss of a smart key
A maximum of two smart keys can
be registered to a single vehicle. If
you happen to lose your smart key,
it is recommended that you should
immediately take the vehicle and
remaining key to your authorized
HYUNDAI dealer or tow the vehicle, if
necessary.

6-12
Convenient features
Battery replacement
OLF044008OLF044008
If the Smart Key is not working properly,
try replacing the battery with a new one.
Battery Type: CR2032
To replace the battery:
1. Pry open the rear cover of the smart
key.
2. Remove the old battery and insert the
new battery. Make sure the battery
position is correct.
3. Reinstall the rear cover of the smart
key.
If you suspect your smart key might
have sustained some damage, or you
feel your smart key is not working
correctly, it is recommended that you
contact an authorized HYUNDAI dealer.
i Information
An inappropriately disposed
battery can be harmful to the
environment and human
health. Dispose the battery
according to your local law(s)
and regulation.
Immobilizer system
The immobilizer system protects your
vehicle from theft. If an improperly
coded key (or other device) is used, the
engine’s fuel system is disabled.
When the ignition switch is placed in
the ON position, the immobilizer system
indicator should come on briefly, then
go off. If the indicator starts to blink, the
system does not recognize the coding of
the key.
Place the ignition switch to the LOCK/
OFF position, then place the ignition
switch to the ON position again.
The system may not recognize your
key’s coding if another immobilizer key
or other metal object (i.e., key chain) is
near the key. The engine may not start
because the metal may interrupt the
transponder signal from transmitting
normally.
If the system repeatedly does not
recognize the coding of the key, it is
recommended that you contact your
HYUNDAI dealer.
Do not attempt to alter this system
or add other devices to it. Electrical
problems could result that may make
your vehicle inoperable.

6-14
Convenient features
• Vehicle should be parked on a flat
surface.
• Smart Key (FOB) should not be placed
inside the vehicle.
Remote Engine Start will not
operate:
1. If gear position is other than ‘N’
2. If the parking brake position is less
than 5th notch condition
3. If vehicle is parked on a hill or an
inclination road(not on flat area)
4. If vehicle battery is low.
CAUTION
For remote start operation in Manual
Transmission, vehicle must be parked
on a flat surface.
Door lock/unlock sound
When a user steps out of the car, all
doors are closed and then the user tries
to lock or unlock the car with the remote
key or smart key, sound occurs along
with flashing.
• Door Lock beep sound : 1time
• Door Unlock beep sound : 2times
Lock/Unlock Sound Function
Disable / Enable:
The user can disable or enable the lock/
unlock sound using the remote key or
smart key.
• Default condition : Sound is Enabled
(ON)
- Sound Disable : User must press
both lock and unlock buttons in the
remote key or smart key together for
at least 4seconds to deactivate the
sound (from “ON  OFF”).
- Sound Enable : User must press
both lock and unlock buttons in the
remote key or smart key together for
at least 4seconds to activate Sound
(from “ OFF  ON”).
• For a successful Activation/
De-activation of Sound, Hazard
warning lights will blink 4 times.