2023 HYUNDAI I20 change key battery

4-21
04
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
whilst the warning message “Key not
detected” is displayed.
At this time, the immobiliser indicator
light blinks.
Low key battery
(for smart key system)
This warning message is displayed if the
battery of the smart key is discharged
whilst 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 a HYUNDAI
authorised repairer.

5-6
Convenient features
Remote key precautions
The remote key will not work if any of
the following occurs:

[ The key is in the ignition switch.

[ You exceed the operating distance
limit (about 30 m [90 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 a
HYUNDAI authorised repairer.
If the remote key is in close proximity to
your mobile phone, the signal could be
blocked by your mobile phone's 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
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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
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electromagnetic materials that blocks
electromagnetic waves to the key
surface.

5-11
05
Smart key precautions
The smart key will not work if any of the
following occurs:

[The smart key is close to a radio
transmitter such as a radio station or
an airport which can interfere with
normal operation of the transmitter.

[The smart key is near a mobile two
way radio system or a mobile phone.

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operated close to your vehicle.
When the smart key does not work
correctly, open and close the door
with the mechanical key. If you have
a problem with the smart key, it is
recommended that you contact a
HYUNDAI authorised repairer.
If the smart key is in close proximity to
your mobile phone, the signal could be
blocked by your mobile phone's 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 smart 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
DXWKRULW\WRRSHUDWHWKHHTXLSPHQW,IWKH
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
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electromagnetic materials that blocks
electromagnetic waves to the key
surface.
Battery replacement
OLF044008
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 a HYUNDAI authorised repairer.
i Information
An inappropriately disposed
battery can be harmful to the
environment and human
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according to your local law(s)
and regulation.