maintenance HYUNDAI I20 2020 User Guide

4-54
Safety system
OBC3030033OBC3030033
• Air bags may not inflate if the vehicle
collides with objects such as utility
poles or trees, where the point of
impact is concentrated and the
collision energy is absorbed by the
vehicle structure.
SRS Care
The SRS is virtually maintenance-
free and so there are no parts you
can safely service by yourself. If the
SRS air bag warning light does not
illuminate, or continuously remains
on, we recommend that the system be
inspected by an authorized HYUNDAI
dealer.
We recommend that the any work on
the SRS system, such as removing,
installing, repairing, or any work on the
steering wheel, the front passenger’s
panel, front seats and roof rails be
performed by an authorized HYUNDAI
dealer. Improper handling of the SRS
system may result in serious personal
injury.
WARNING
• Modification to SRS components
or wiring, including the addition
of any kind of badges to the pad
covers or modifications to the body
structure, can adversely affect SRS
performance and lead to possible
injury.
• For cleaning the air bag pad covers,
use only a soft, dry cloth or one which
has been moistened with plain water.
Solvents or cleaners could adversely
affect the air bag covers and proper
deployment of the system.

5-6
Instrument cluster
Engine Coolant Temperature Gauge
OIB044113OIB044113
„„Type AType A
„„Type BType B
OBI3040006OBI3040006
This gauge shows the temperature of the
engine coolant when the ignition switch
is in the ON position.
NOTICE
If the gauge pointer moves beyond the
normal range area toward the “130”
position, it indicates overheating that
may damage the engine.
Do not continue driving with an
overheated engine. If your vehicle
overheats, refer to “If the Engine
Overheats” in chapter 8.
WARNING
Never remove the radiator cap or
reservoir cap when the engine is hot.
The engine coolant is under pressure
and could cause severe burns. Wait
until the engine is cool before adding
coolant to the reservoir.
Odometer
OIB044116OIB044116
„„ Type A Type A
OIB044115OIB044115
„„Type BType B
The odometer indicates the total
distance that the vehicle has been
driven and should be used to determine
when periodic maintenance should be
performed.
- Odometer range : 0 ~ 1599999
kilometers or 999999 miles.
i Information
It is forbidden to alter the odometer of
all vehicles with the intent to change
the mileage registered on the odometer.
The alteration may void your warranty
coverage.

6
Wipers and washers ......................................................................................6-50
Windshield wipers ................................................................................................... 6-51
Windshield washers ................................................................................................ 6-51
Rear window wiper and washer switch ................................................................. 6-52
Manual climate control system .................................................................... 6-53
Heating and air conditioning .................................................................................. 6-54
System operation .................................................................................................... 6-58
System maintenance ..............................................................................................6-60
Automatic climate control system ............................................................... 6-62
Automatic heating and air conditioning ................................................................ 6-63
Manual heating and air conditioning ..................................................................... 6-64
System operation .................................................................................................... 6-69
System maintenance
............................................................................................... 6-71
Windshield defrosting and defogging ......................................................... 6-72
Manual climate control system ...............................................................................6-72
Automatic climate control system ..........................................................................6-73
Auto defogging system (only for automatic climate control system)
..................6-74
Defroster ...................................................................................................................6-75
Storage compartment ...................................................................................6-77
Center console storage ............................................................................................ 6-77
Sliding armrest
......................................................................................................... 6-77
Glove box ................................................................................................................. 6-78
Cool box ................................................................................................................... 6-78
Interior features ........................................................................................... 6-79
Cup holder ............................................................................................................... 6-79
Sunvisor ...................................................................................................................6-80
Power outlet ............................................................................................................6-80
USB charger
..............................................................................................................6-81
Clothes hanger ........................................................................................................ 6-82
Wireless cellular phone charging system .............................................................. 6-82
Floor mat anchor(s) ................................................................................................. 6-85
Cargo area cover
.....................................................................................................6-86

6-60
Convenient features
Air conditioning system operation tips
• If the vehicle has been parked in direct
sunlight during hot weather, open the
windows for a short time to let the hot
air inside the vehicle escape.
• After sufficient cooling has been
achieved, switch back from
recirculation mode to fresh mode.
• To help reduce moisture inside of
the windows on rainy or humid
days, decrease the humidity inside
the vehicle by operating the air
conditioning system with the windows
and sunroof closed.
• During air conditioning system
operation, you may occasionally
notice a slight change in engine speed
as the air conditioning compressor
cycles. This is a normal system
operation characteristic.
• Use the air conditioning system
every month only for a few minutes
to ensure maximum system
performance.
• When using the air conditioning
system, you may notice clear water
dripping (or even puddling) on the
ground under the passenger side of
the vehicle. This is a normal system
operation characteristic.
• If you operate the air conditioner
excessively, the difference between
the temperature of the outside air and
that of the windshield could cause the
outer surface of the windshield to fog
up, causing loss of visibility. In this
case, set the mode selection button to
the
position and set the fan speed
control knob to the lowest speed
setting.
System maintenance
Climate control air filter
OIK047401LOIK047401L
[A] : Outside air, [B] : Recirculated air
[C] : Climate control air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core
This filter is installed behind the glove
box. It filters the dust or other pollutants
that enter the vehicle through the
heating and air conditioning system.
We recommend that the climate control
air filter be replaced by an authorized
HYUNDAI dealer according to the
maintenance schedule. If the vehicle is
being driven in severe conditions such
as dusty or rough roads, more frequent
climate control filter inspections and
changes are required.
If the air flow rate suddenly decreases,
we recommend the system be checked
at an authorized HYUNDAI dealer.
i Information
• Replace the filter according to the
Maintenance Schedule.
• If the car is being driven in severe
conditions such as dusty, rough roads,
more frequent climate control air filter
inspections and changes are required.
• When the air flow rate suddenly
decreases, we recommend that the
system be checked by an authorized
HYUNDAI dealer.

6-71
06
System maintenance
Climate control air filter
OIK047401LOIK047401L
[A] : Outside air, [B] : Recirculated air
[C] : Climate control air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core
This filter is installed behind the glove
box. It filters the dust or other pollutants
that enter the vehicle through the
heating and air conditioning system.
We recommend that the climate control
air filter be replaced by an authorized
HYUNDAI dealer according to the
maintenance schedule. If the vehicle is
being driven in severe conditions such
as dusty or rough roads, more frequent
climate control filter inspections and
changes are required.
If the air flow rate suddenly decreases,
we recommend the system be checked
at an authorized HYUNDAI dealer.
i Information
• Replace the filter according to the
Maintenance Schedule.
• If the car is being driven in severe
conditions such as dusty, rough roads,
more frequent climate control air filter
inspections and changes are required.
• When the air flow rate suddenly
decreases, we recommend that the
system be checked by an authorized
HYUNDAI dealer.
Checking the amount of air
conditioner refrigerant and
compressor lubricant
When the amount of refrigerant is low,
the performance of the air conditioning
is reduced. Overfilling also has a bad
influence on the air conditioning system.
Therefore, if abnormal operation is
found, we recommend that the system
be inspected by an authorized HYUNDAI
dealer.
NOTICE
It is important that the correct type and
amount of oil and refrigerant is used.
Otherwise, damage to the compressor
and abnormal system operation may
occur. To prevent damage, the air
conditioning system in your vehicle
should only be serviced by trained and
certified technicians.
WARNING
Vehicles equipped with R-134a
Since the refrigerant is
operated at very high
pressure, the air
conditioning system should
only be serviced by trained
and certified technicians.
All refrigerants should be reclaimed
with proper equipment.
Venting refrigerants directly to the
atmosphere is harmful to individuals
and environment. Failure to heed these
warnings can lead to serious injuries.

6-98
Convenient features
i Information
- About handling the system
• Do not apply excessive force to the
system. Excessive pressure on the
screen may damage the LCD panel or
the touch panel.
• When cleaning the screen or button
panel, make sure to stop the engine
and use a soft, dry cloth. Wiping the
screen or buttons with a rough cloth or
using solvents (alcohol, benzene, paint
thinner, etc.) may scratch or chemically
damage the surface.
• If you attach a liquid-type air freshener
to the fan louvre, the surface of the
louvre may become deformed due to
the flowing air.
• If you want to change the position of
the installed device, please inquire
with your place of purchase or service
maintenance centre. Technical expertise
is required to install or disassemble the
device.
NOTICE
• If you experience any problems with
the system, contact your place of
purchase or dealer.
• Placing the audio system within an
electromagnetic environment may
result in noise interference.
Turning the system on or off
To turn on the system, start the engine.
• If you do not want to use the system
while driving, you can turn off the
system by pressing the [POWER]
button on the control panel. To use
the system again, press the [POWER]
button again.
After you have turned off the engine, the
system will automatically turn off after a
while or as soon as you open the driver’s
door.
• Depending on the vehicle model or
specifications, the system may turn
off as soon as you turn off the engine.
• When you turn back on the system,
the previous mode and settings will
remain intact.
WARNING
• Some functions may be disabled for
safety reasons while the vehicle is
moving. They work only when the
vehicle stops. Park your vehicle in
a safe location before using any of
them.
• Stop using the system if it
malfunctions, such as no audio
output or display. If you continue
using the system when it is
malfunctioning, it may lead to a fire,
electric shock, or system failure.
i Information
You can turn on the system when the key
ignition switch is placed in the “ACC”
or “ON” position. Using the system for
an extended period without the engine
running drains the battery. If you plan on
using the system for a long time, start the
engine.

7-53
07
Winter precautions
Use high quality ethylene glycol
coolant
Your vehicle is delivered with high
quality ethylene glycol coolant in the
cooling system. It is the only type of
coolant that should be used because it
helps prevent corrosion in the cooling
system, lubricates the water pump and
prevents freezing. Be sure to replace or
replenish your coolant in accordance
with the maintenance schedule in
chapter 8. Before winter, have your
coolant tested to assure that its freezing
point is sufficient for the temperatures
anticipated during the winter.
Check battery and cables
Winter puts additional burdens on the
battery system. Visually inspect the
battery and cables as described in
chapter 8. The level of charge in your
battery can be checked by an authorized
HYUNDAI dealer or a service station.
Change to “winter weight” oil if
necessary
In some climates it is recommended that
a lower viscosity “winter weight” oil be
used during cold weather. See chapter
2 for recommendations. If you aren’t
sure what weight oil you should use, we
recommend that you consult with an
authorized HYUNDAI dealer.
Check spark plugs and ignition
system
Inspect your spark plugs as described
in chapter 8 and replace them if
necessary. Also check all ignition wiring
and components to be sure they are not
cracked, worn or damaged in any way.
To keep locks from freezing
To keep the locks from freezing, squirt
an approved de-icer fluid or glycerine
into the key opening. If a lock is covered
with ice, squirt it with an approved
de-icing fluid to remove the ice. If the
lock is frozen internally, you may be able
to thaw it out by using a heated key.
Handle the heated key with care to avoid
injury.
Use approved window washer anti-
freeze in system
To keep the water in the window washer
system from freezing, add an approved
window washer anti-freeze solution in
accordance with instructions on the
container. Window washer anti-freeze is
available from an authorized HYUNDAI
dealer and most auto parts outlets. Do
not use engine coolant or other types
of anti-freeze as these may damage the
paint finish.

9-10
Emergency situations
Tire pressure monitoring system
WARNING
Over-inflation or under-inflation can
reduce tire life, adversely affect vehicle
handling, and lead to sudden tire
failure that may cause loss of vehicle
control resulting in an accident.
Each tire, including the spare (if
provided), should be checked monthly
when cold and inflated to the inflation
pressure recommended by the vehicle
manufacturer on the vehicle placard
or tire inflation pressure label. (If your
vehicle has tires of a different size
than the size indicated on the vehicle
placard or tire inflation pressure label,
you should determine the proper tire
inflation pressure for those tires.)
As an added safety feature, your
vehicle has been equipped with a tire
pressure monitoring system (TPMS)
that illuminates a low tire pressure
telltale when one or more of your tires is
significantly under-inflated.
Accordingly, when the low tire pressure
telltale illuminates, you should stop and
check your tires as soon as possible,
and inflate them to the proper pressure.
Driving on a significantly under-inflated
tire causes the tire to overheat and can
lead to tire failure. Under-inflation also
reduces fuel efficiency and tire tread life,
and may affect the vehicle’s handling
and stopping ability.
Please note that the TPMS is not a
substitute for proper tire maintenance,
and it is the driver’s responsibility to
maintain correct tire pressure, even if
under-inflation has not reached the level
to trigger illumination of the TPMS low
tire pressure telltale.Your vehicle has also been equipped
with a TPMS malfunction indicator
to indicate when the system is
not operating properly. The TPMS
malfunction indicator is combined with
the low tire pressure telltale. When
the system detects a malfunction, the
telltale will flash for approximately one
minute and then remain continuously
illuminated. This sequence will continue
upon subsequent vehicle start-ups as
long as the malfunction exists. When
the malfunction indicator is illuminated,
the system may not be able to detect
or signal low tire pressure as intended.
TPMS malfunctions may occur for
a variety of reasons, including the
installation of replacement or alternate
tires or wheels on the vehicle that
prevent the TPMS from functioning
properly. Always check the TPMS
malfunction telltale after replacing
one or more tires or wheels on your
vehicle to ensure that the replacement
or alternate tires and wheels allow the
TPMS to continue to function properly.
i Information
If the TPMS indicator does not illuminate
for 3 seconds when the ignition switch
is turned to the ON position or engine
is running, or if it comes on after
blinking for approximately one minute,
we recommend that you contact an
authorized HYUNDAI dealer.

Engine compartment .................................................................................... 10-4
Maintenance services
................................................................................... 10-6
Owner’s responsibility ............................................................................................ 10-6
Owner maintenance precautions........................................................................... 10-6
Owner maintenance ..................................................................................... 10-8
Owner maintenance schedule ............................................................................... 10-8
Scheduled maintenance service ................................................................ 10-10
Normal maintenance schedule - petrol engine .................................................... 10-11
Maintenance under severe usage conditions - petrol engine
............................ 10-15
Normal maintenance schedule - diesel engine ....................................................10-17
Maintenance under severe usage conditions - diesel engine ............................10-20
Explanation of scheduled maintenance items ..........................................10-24
Engine oil
..................................................................................................... 10-26
Checking the engine oil level (Petrol Engine) .......................................................10-28
Checking the engine oil level (Diesel Engine) ......................................................10-29
Changing the engine oil and filter
......................................................................... 10-31
Engine coolant .............................................................................................10-32
Checking the coolant level .................................................................................... 10-32
Recommended engine coolant .............................................................................10-34
Changing the coolant
............................................................................................10-34
Brake/clutch fluid ........................................................................................10-35
Checking the brake/clutch fluid level ................................................................... 10-35
Intelligent Manual Transmission (iMT) System actuator fluid .................. 10-37
Checking the iMT system actuator fluid level ...................................................... 10-37
Washer fluid ................................................................................................ 10-38
Checking the washer fluid level ............................................................................10-38
Parking brake .............................................................................................. 10-39
Checking the parking brake ..................................................................................10-39
Fuel filter (for diesel) ................................................................................... 10-40
Draining water from fuel filter .............................................................................. 10-40
Fuel filter cartridge replacement
......................................................................... 10-40
Air cleaner .................................................................................................... 10-41
Filter replacement .................................................................................................. 10-41
Climate control air filter.............................................................................. 10-43
Filter inspection ..................................................................................................... 10-43
Filter replacement ................................................................................................. 10-43
10. Maintenance
10

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