2021 HYUNDAI I20 battery replacement

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)

6-12
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.

10
Wiper blades ............................................................................................... 10-45
Blade inspection .....................................................................................................10-45
Blade replacement .................................................................................................10-45
Battery ......................................................................................................... 10-48
For best battery service ........................................................................................ 10-48
Battery capacity label
........................................................................................... 10-50
Battery recharging ................................................................................................ 10-48
Reset items ............................................................................................................ 10-49
Battery replacement
............................................................................................. 10-49
Tires and wheels ......................................................................................... 10-50
Tire care ................................................................................................................. 10-50
Recommended cold tire inflation pressures ....................................................... 10-50
Checking tire inflation pressure
............................................................................ 10-51
Tire rotation
............................................................................................................10-52
Wheel alignment and tire balance ........................................................................10-53
Tire replacement ....................................................................................................10-54
Wheel replacement
................................................................................................10-55
Tire traction
............................................................................................................10-55
Tire maintenance .................................................................................................. 10-56
Tire sidewall labeling ............................................................................................. 10-56
Low aspect ratio tire.............................................................................................. 10-59
Fuses ............................................................................................................. 10-61
Instrument panel fuse replacement .....................................................................10-62
Engine compartment panel fuse replacement ................................................... 10-63
Fuse/relay panel description
................................................................................ 10-64
Light bulbs .................................................................................................... 10-75
Headlight, Position Light, Turn signal Light bulb replacement ........................... 10-76
Side repeater light replacement ........................................................................... 10-81
Rear combination light bulb replacement
........................................................... 10-81
High mounted stop light replacement ................................................................ 10-85
License plate light bulb replacement .................................................................. 10-85
Interior light bulb replacement ............................................................................ 10-86

10-51
10
WARNING
• Before performing maintenance or
recharging the battery, turn off all
accessories and stop the engine.
• The negative battery cable must be
removed first and installed last when
the battery is disconnected.
Reset items
Items should be reset after the battery
has been discharged or the battery has
been disconnected.
• Auto up/down window
(See chapter 5)
• Climate control system
(See chapter 5)
• Audio (See chapter 5)
Battery replacement
Replacing a Battery required
precautionary measures.
We recommend that you consult an
authorized HYUNDAI dealer.

10-63
10
OTA070039OTA070039
„„ Blade type Blade type
NormalNormalBlownBlown
„„ Cartridge type Cartridge type
„„ Multi fuse Multi fuse
NormalNormalBlownBlown
NormalNormalBlownBlown
A vehicle’s electrical system is protected
from electrical overload damage by
fuses.
This vehicle has 2 fuse panels, one
located in the driver’s side panel bolster,
the other in the engine compartment.
If any of your vehicle’s lights,
accessories, or controls do not work,
check the appropriate circuit fuse. If a
fuse has blown, the element inside the
fuse will be melted or broken.
If the electrical system does not work,
first check the driver’s side fuse panel.
Before replacing a blown fuse, turn the
engine and all switches off, and then
disconnect the negative battery cable.
Always replace a blown fuse with one of
the same rating.
If the replacement fuse blows, this
indicates an electrical problem.
Avoid using the system involved and
we recommend that all inspect an
authorized HYUNDAI dealer.
i Information
Three kinds of fuses are used: blade type
for lower amperage rating, cartridge
type, and multi fuse for higher amperage
ratings.
WARNING
NEVER replace a fuse with anything but
another fuse of the same rating.
• A higher capacity fuse could cause
damage and possibly cause a fire.
• Do not install a wire or aluminum
foil instead of the proper fuse -
even as a temporary repair. It may
cause extensive wiring damage and
possibly a fire.
NOTICE
Do not use a screwdriver or any other
metal object to remove fuses because
it may cause a short circuit and damage
the system.
FUSES

10-65
10
Engine compartment panel fuse
replacement
OBI3090018OBI3090018
1. Turn the vehicle off.
2. Turn all other switches OFF.
3. Remove the fuse panel cover by
pressing the tab and pulling up.
4. Check the removed fuse; replace it
if it is blown. To remove or insert the
fuse, use the fuse puller in the engine
compartment fuse panel.
5. Push in a new fuse of the same rating,
and make sure it fits tightly in the
clips. If it fits loosely, we recommend
that you consult an authorized
HYUNDAI dealer.
NOTICE
After checking the fuse panel in the
engine compartment, securely
install the fuse panel cover. You may
hear a clicking sound if the cover is
securely latched. If it is not securely
latched, electrical failure may occur
from water contact.
Multi fuse (Main fuse)
OBI3090017OBI3090017
If the multi fuse is blown, it must be
removed as follows:
1. Turn the vehicle off.
2. Disconnect the negative battery cable.
3. Remove the fuse panel cover by
pressing the tab and pulling it up.
4. Remove the nuts shown in the picture
above.
5. Replace the fuse with a new one of
the same rating.
6. Reinstall in the reverse order of
removal.
If the multi fuse is blown, we
recommend that you consult an
authorized HYUNDAI dealer.