maintenance HYUNDAI I20 2023 User Guide

5
Wipers and washers ...................................................................................... 5-54Windscreen wipers .................................................................................................. 5-54
Windscreen washers ............................................................................................... 5-55
Rear window wiper and washer switch ................................................................. 5-56
Manual climate control system .................................................................... 5-57Heating and air conditioning .................................................................................. 5-58
System operation .................................................................................................... 5-62
System maintenance .............................................................................................. 5-64
Automatic climate control system ...............................................................5-66Automatic heating and air conditioning ................................................................ 5-67
Manual heating and air conditioning ..................................................................... 5-68
System operation ..................................................................................................... 5-72
System maintenance ............................................................................................... 5-75
Windscreen defrosting and defogging ......................................................... 5-77Manual climate control system ............................................................................... 5-77
Automatic climate control system ..........................................................................5-78
Auto defogging system (only for automatic climate control system) ..................5-79
Defroster .................................................................................................................. 5-80
Storage compartment .................................................................................. 5-82Centre console storage ........................................................................................... 5-82
Glove box ................................................................................................................. 5-83
Interior features ............................................................................................ 5-84Ashtray ..................................................................................................................... 5-84
Cup holder ............................................................................................................... 5-84
Sliding armrest ........................................................................................................ 5-85
Sunvisor ................................................................................................................... 5-85
Power outlet ............................................................................................................ 5-86
USB charger ............................................................................................................. 5-87
Wireless mobile phone charging system ............................................................... 5-87
Clock ........................................................................................................................ 5-90
Coat hook ................................................................................................................. 5-90
Floor mat anchor(s) .................................................................................................. 5-91
Luggage net (holder) ............................................................................................... 5-92
Cargo area cover ..................................................................................................... 5-92

5-64
Convenient features
System maintenance
Climate control air filter
OIK047401L
[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 a HYUNDAI
authorised repairer 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 a HYUNDAI authorised repairer.
i Information

5-75
05
System maintenance
Climate control air filter
OIK047401L
[A] : Outside air, [B] : Recirculated air
[C] : Climate control air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core
The climate control air filter installed
behind the glove box filters the dust
or other pollutants that come into the
vehicle from the outside through the
heating and air conditioning system. If
dust or other pollutants accumulate in
the filter over a period of time, the air
flow from the air vents may decrease,
resulting in moisture accumulation
on the inside of the windscreen even
when the outside (fresh) air position is
selected.
If this happens, we recommend that the
climate control air filter be replaced by a
HYUNDAI authorised repairer.
i Information

6
Start Stop Coasting (SSC) (for 48V MHEV) ................................................. 6-54SSC operating conditions ...................................................................................... 6-54
Engine restarting conditions ................................................................................. 6-54
Drive mode integrated control system ........................................................ 6-55
Special driving conditions ............................................................................6-58
Hazardous driving conditions ................................................................................ 6-58
Rocking the vehicle ................................................................................................. 6-58
Smooth cornering ................................................................................................... 6-59
Driving at night ........................................................................................................ 6-59
Driving in the rain .................................................................................................... 6-59
Driving in flooded areas ..........................................................................................6-60
Highway driving ......................................................................................................6-60
Winter driving ................................................................................................ 6-61Snow or icy conditions .............................................................................................6-61
Winter Precautions .................................................................................................. 6-63
Trailer towing (for europe) ............................................................................6-65If you decide to pull a trailer? ................................................................................. 6-66
Trailer towing equipment........................................................................................ 6-69
Driving with a trailer ................................................................................................ 6-70
Maintenance when towing a trailer ........................................................................6-72
Vehicle weight ............................................................................................... 6-73Overloading ..............................................................................................................6-73

6-63
06
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When installing tyre chains, follow the
manufacturer’s instructions and mount
them as tightly possible. Drive slowly
(less than 20 mph (30 km/h)) with
chains installed. If you hear the chains
contacting the body or chassis, stop and
tighten them. If they still make contact,
slow down until the noise stops. Remove
the tyre chains as soon as you begin
driving on cleared roads.
When mounting snow chains, park
the vehicle on level ground away from
traffic. Turn on the vehicle Hazard
Warning Flasher and place a triangular
emergency warning device behind the
vehicle (if available). Always place the
vehicle in P (Park), apply the parking
brake and turn off the engine before
installing snow chains.
NOTICE
When using tyre chains:

[Wrong size chains or improperly
installed chains can damage your
vehicle’s brake lines, suspension,
body and wheels.

[Use SAE “S” class or wire chains.

[If you hear noise caused by chains
contacting the body, retighten the
chain to prevent contact with the
vehicle body.

[To prevent body damage, retighten
the chains after driving 0.3~0.6 miles
(0.5~1.0 km).

[Do not use tyre chains on vehicles
equipped with aluminium wheels. If
unavoidable, use a wire type chain.

[Use wire chains less than 0.47 in (12
mm) wide to prevent damage to the
chain’s connection.
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. 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 temperatures affect battery
performance. Inspect the battery and
cables, as specified in the chapter
9. The battery charging level can be
checked by a HYUNDAI authorised
repairer or in a service station.
Change to “winter weight” oil if
necessary
In some regions during winter, it is
recommended to use the “winter
weight” oil with lower viscosity. For
further information, refer to the chapter
2. When you are not sure about a type
of winter weight oil, consult a HYUNDAI
authorised repairer.

6-72
Driving your vehicle
Ready to leave after parking on a
hill
1. With the shift lever to P (Park, for
Automatic transmission/Dual clutch
transmission vehicle) or neutral (for
Manual transmission vehicle), apply
your brakes and hold the brake pedal
down whilst you:

V Start your engine;

V Shift into gear; and

V Release the parking brake.
2. Slowly remove your foot from the
brake pedal.
3. Drive slowly until the trailer is clear of
the chocks.
4. Stop and have someone pick up and
store the chocks.
Maintenance when towing a
trailer
Your vehicle will need service more
often when you regularly pull a trailer.
Important items to pay particular
attention to include engine oil,
automatic transmission/dual clutch
transmission fluid, axle lubricant and
cooling system fluid. Brake condition
is another important item to frequently
check. If you’re trailering, it’s a good
idea to review these items before
you start your trip. Don’t forget to
also maintain your trailer and towbar.
Follow the maintenance schedule that
accompanied your trailer and check it
periodically. Preferably, conduct the
check at the start of each day’s driving.
Most importantly, all towbar nuts and
bolts should be tight.
NOTICE
To prevent vehicle damage:

V Due to higher load during trailer
usage, overheating might occur on
hot days or during uphill driving. If
the coolant gauge indicates over-
heating, switch off the air conditioner
and stop the vehicle in a safe area to
cool down the engine.

V When towing check Automatic
transmission/Dual clutch
transmission fluid more frequently.

V If your vehicle is not equipped with
an air conditioner, you should install
a condenser fan to improve engine
performance when towing a trailer.

8-12
Emergency situations
Tyre pressure monitoring
system
WARNING
Over-inflation or under-inflation can
reduce tyre life, adversely affect
vehicle handling, and lead to sudden
tyre failure that may cause loss of
vehicle control resulting in an accident.
Each tyre, 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 tyre inflation pressure label. (If your
vehicle has tyres of a different size
than the size indicated on the vehicle
placard or tyre inflation pressure label,
you should determine the proper tyre
inflation pressure for those tyres.)
As an added safety feature, your
vehicle has been equipped with a tyre
pressure monitoring system (TPMS)
that illuminates a low tyre pressure
telltale when one or more of your
tyres is significantly under-inflated.
Accordingly, when the low tyre pressure
telltale illuminates, you should stop and
check your tyres as soon as possible,
and inflate them to the proper pressure.
Driving on a significantly under-inflated
tyre causes the tyre to overheat and can
lead to tyre failure.
Under-inflation also reduces fuel
efficiency and tyre tread life, and
may affect the vehicle’s handling and
stopping ability.
Please note that the TPMS is not a
substitute for proper tyre maintenance,
and it is the driver’s responsibility to
maintain correct tyre pressure, even if
under-inflation has not reached the level
to trigger illumination of the TPMS low
tyre 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 tyre 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 tyre pressure as
intended. TPMS malfunctions may occur
for a variety of reasons, including the
installation of replacement or alternate
tyres or wheels on the vehicle that
prevent the TPMS from functioning
properly.
Always check the TPMS malfunction
telltale after replacing one or more tyres
or wheels on your vehicle to ensure that
the replacement or alternate tyres and
wheels allow the TPMS to continue to
function properly.
NOTICE
If any of the below happens, we
recommend that you have the system
checked by a HYUNDAI authorised
repairer.
1. The Low Tyre Pressure Telltale/
TPMS Malfunction Indicator does not
illuminate for 3 seconds when the
Engine Start/Stop button is pressed
to the ON position or when the
engine is running.
2. The TPMS Malfunction Indicator
remains illuminated after blinking for
approximately 1 minute.
3. The Low Tyre Pressure Position
Telltale remains illuminated.

8-44
Emergency situations
WARNING
Emergency power supply of the Pan-
European eCall system from the battery

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battery supplies power during 1 hour
in case the main power source of the
vehicle is cut off due to the collision
during the emergency situations.

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battery should be replaced every 3
years. For more information, refer to
“Maintenance Schedule” in chapter
9.
LED illumination in red (system
malfunction)
If the red LED illuminates in normal
driving conditions, this can indicate
malfunction of the Pan-European
eCall system. We recommend that you
have the Pan-European eCall system
checked by a HYUNDAI authorised
repairer as soon as possible. Otherwise
correct operation of the Pan-European
eCall system device, installed in your
vehicle is not guaranteed. Owner
of the vehicle incurs liability for
consequences, occurred as a result
of nonobservance of conditions,
mentioned above. Arbitrary Removal or Modification
The Pan-European eCall system calls
emergency services for assistance.
Thus, any arbitrary removal or changes
to the Pan-European eCall system
settings may affect your driving safety.
Also, it may even make an erroneous
emergency call to the Public Safety
Answering Point (PSAP). Thereby, we
kindly ask you not to make any changes
by yourself or by the third parties in the
settings of the equipment of the Pan-
European eCall system, installed in your
vehicle.

Engine compartment ...................................................................................... 9-3
Maintenance services .....................................................................................9-6
Owner’s responsibility .............................................................................................. 9-6
Owner maintenance precautions............................................................................. 9-6
Owner maintenance ....................................................................................... 9-7Owner maintenance schedule ..................................................................................9-7
Scheduled maintenance services ..................................................................9-9
Explanation of scheduled maintenance items ........................................... 9-10
Engine oil ........................................................................................................9-13
Checking the engine oil level .................................................................................. 9-13
Checking the engine oil and filter ........................................................................... 9-15
Engine coolant ...............................................................................................9-16Checking the coolant level ...................................................................................... 9-16
Changing the engine coolant .................................................................................. 9-19
Brake/clutch fluid ......................................................................................... 9-20Checking the brake/clutch fluid level .................................................................... 9-20
Intelligent Manual Transmission (iMT) System actuator fluid ................... 9-22Checking the IMT system actuator fluid level ....................................................... 9-22
Washer fluid .................................................................................................. 9-23Checking the washer fluid level ............................................................................. 9-23
Checking the parking brake ................................................................................... 9-23
Parking brake ................................................................................................ 9-23
Air cleaner ..................................................................................................... 9-24
Filter replacement ................................................................................................... 9-24
Climate control air filter................................................................................ 9-26Filter inspection ....................................................................................................... 9-26
Filter replacement ................................................................................................... 9-26
Wiper blades ................................................................................................. 9-27Blade inspection .......................................................................................................9-27
Blade replacement ...................................................................................................9-27
9. Maintenance
9

9
Battery ........................................................................................................... 9-29For best battery service .......................................................................................... 9-30
Battery capacity label .............................................................................................. 9-31
Battery recharging ................................................................................................... 9-31
Reset items .............................................................................................................. 9-32
Tyres and wheels ........................................................................................... 9-33Tyre care ................................................................................................................... 9-33
Recommended cold tyre inflation pressures ........................................................ 9-34
Check tyre inflation pressure ................................................................................. 9-34
Tyre rotation ............................................................................................................. 9-35
Wheel alignment and tyre balance ........................................................................ 9-36
Tyre replacement..................................................................................................... 9-36
Wheel replacement ................................................................................................. 9-38
Tyre traction ............................................................................................................. 9-38
Tyre maintenance .................................................................................................... 9-38
Tyre sidewall labelling ............................................................................................. 9-38
Low aspect ratio tyres ..............................................................................................9-41
Fuses .............................................................................................................. 9-42Instrument panel fuse replacement ...................................................................... 9-43
Engine compartment panel fuse replacement ..................................................... 9-44
Fuse/relay panel description .................................................................................. 9-45
Light bulbs .....................................................................................................9-59Headlight, Position Light, Turn signal Light bulb replacement ............................9-60
Headlight and front fog light aiming (For Europe) ................................................ 9-65
Side repeater light replacement ............................................................................ 9-70
Rear combination light bulb replacement ............................................................. 9-71
High mounted stop light replacement .................................................................. 9-78
License plate light bulb replacement .................................................................... 9-78
Interior light bulb replacement .............................................................................. 9-79
Appearance care .......................................................................................... 9-80Exterior care ............................................................................................................9-80
Interior care ............................................................................................................. 9-85
Emission control system.............................................................................. 9-88Crankcase emission control system ......................................................................9-88
Evaporative emission control system ....................................................................9-88
Exhaust emission control system ...........................................................................9-89