ECU HYUNDAI I20 2023 Owners Manual

01
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Petrol engine
Unleaded
For the optimal vehicle performance, we recommend you use unleaded petrol which
has an octane rating of RON (Research Octane Number) 95 / AKI (Anti Knock Index)
91 or higher. You may use unleaded petrol with an octane rating of RON 91-94 / AKI
87-90 but it may result in slight performance reduction of the vehicle. (Do not use
methanol blended fuels)
Your new vehicle is designed to obtain maximum performance with UNLEADED FUEL,
as well as minimise exhaust emissions and spark plug fouling.
CAUTION
NEVER USE LEADED FUEL. The use of leaded fuel is detrimental to the catalytic
converter and will damage the engine control system’s oxygen sensor and affect
emission control.
Never add any fuel system cleaning agents to the fuel tank other than what has
been specified (We recommend that you consult a HYUNDAI authorised repairer for
details.)
WARNING

[Do not “top off” after the nozzle automatically shuts off when refuelling.

[Always check that the fuel cap is installed securely to prevent fuel spillage in the
event of an accident.

3-11
03
WARNING
When you return the rear seatback to
its upright position after being folded
down:
Be careful not to damage the seat belt
webbing or buckle. Do not allow the
seat belt webbing or buckle to get
caught or pinched in the rear seat.
Ensure that the seatback is completely
locked into its upright position by
pushing on the top of the seatback.
Otherwise, in an accident or sudden
stop, the seat could fold down and
allow cargo to enter the passenger
compartment, which could result in
serious injury or death.
NOTICE

[When returning the rear seatbacks
to the upright position, remember to
return the rear shoulder belts to their
proper position.

[Routing the seat belt webbing
through the rear seat belt guides will
help keep the seat belts from being
trapped behind or under the seats.
WARNING
Cargo
Cargo should always be secured to
prevent it from being thrown about the
vehicle in a collision and causing injury
to the vehicle occupants. Do not place
objects in the rear seats, since they
cannot be properly secured and may hit
the front seat occupants in a collision.
WARNING
Cargo loading
Make sure the engine is off, the
Automatic transmission/Dual clutch
transmission is in N (Neutral) or the
Manual transmission is in R (Reverse)
or the 1st gear, and the parking brake is
securely applied whenever loading or
unloading cargo. Failure to take these
steps may allow the vehicle to move if
the shift lever is inadvertently moved to
another position.

3-19
03
SEAT BELTS
This section describes how to use the
seat belts properly. It also describes
some of the things not to do when using
seat belts.
Seat belt safety precautions
Always fasten your seat belt and make
sure all passengers have fastened their
seat belts before starting any trip.
Air bags (if equipped) are designed
to supplement the seat belt as an
additional safety device, but they are
not a substitute. Most countries require
all occupants of a vehicle to wear seat
belts.
WARNING
Seat belts must be used by ALL
passengers whenever the vehicle is
moving. Take the following precautions
when adjusting and wearing seat belts:

[ALWAYS properly restrain children
under age 13 in the rear seats.

[NEVER allow children to ride in the
front passenger seat. If a child age 13
or older must be seated in the front
seat, move the seat as far back as
possible and properly restrain them
in the seat.

[NEVER allow an infant or child to be
carried on an occupant’s lap.

[NEVER ride with the seatback
reclined when the vehicle is moving.

[Do not allow children to share a seat
or seat belt.

[Do not wear the shoulder belt under
your arm or behind your back.

[Never wear a seat belt over fragile
objects. If there is a sudden stop or
impact, the seat belt can damage it.

[Do not use the seat belt if it is
twisted. A twisted seat belt will not
protect you properly in an accident.

[Do not use a seat belt if the webbing
or hardware is damaged.
[Do not latch the seat belt into the
buckles of other seats.

[NEVER unfasten the seat belt
whilst driving. This may cause loss
of vehicle control resulting in an
accident.

[Make sure there is nothing in the
buckle interfering with the seat belt
latch mechanism. This may prevent
the seat belt from fastening securely.

[No modifications or additions
should be made by the user which
will either prevent the seat belt
adjusting devices from operating to
remove slack, or prevent the seat
belt assembly from being adjusted to
remove slack. WARNING
Damaged seat belts and seat belt
assemblies will not operate properly.
Always replace:

[Frayed, contaminated, or damaged
webbing.

[Damaged hardware.

[The entire seat belt assembly after it
has been worn in an accident, even
if damage to webbing or assembly is
not apparent.

3-28
Safety system
Seat belt use and children
Infant and small children
Most countries have Child Restraint
Systems laws which require children
to travel in approved Child Restraint
Systems devices, including booster
seats. The age at which seat belts can be
used instead of Child Restraint Systems
differs among countries, so you should
be aware of the specific requirements
in your country, and where you are
travelling. Infant and Child Restraint
Systems must be properly placed and
installed in a rear seat. For more details,
refer to the “Child Restraint Systems” in
this chapter.
WARNING
ALWAYS properly restrain infants and
small children in a Child Restraint System
appropriate for the child’s height and
weight.
To reduce the risk of serious injury or
death to a child and other passengers,
NEVER hold a child in your lap or arms
when the vehicle is moving. The violent
forces created during an accident will
tear off the child from your arms and
throw the child against the interior of the
vehicle.
Small children are best protected from
injury in an accident when properly
restrained in the rear seat by a Child
Restraint System that meets the
requirements of the Safety Standards of
your country. Before buying any Child
Restraint System, make sure that it has
a label certifying that it meets Safety
Standard of your country. The restraint
must be appropriate for your child’s
height and weight. Check the label
on the Child Restraint System for this
information. Refer to “Child Restraint
Systems” in this chapter.
Larger children
Children under age 13 and who are too
large for a booster seat must always
occupy the rear seat and use the
available lap/shoulder belts. A seat belt
should lie across the upper thighs and
be snug across the shoulder and chest
to restrain the child safely. Check belt fit
periodically. A child’s squirming could
put the belt out of position. Children are
afforded the most safety in the event of
an accident when they are restrained by
a proper restraint system and/or seat
belts in the rear seat.
If a larger child over age 13 must be
seated in the front seat, the child must
be securely restrained by the available
lap/shoulder belt and the seat should be
placed in the rearmost position.
If the shoulder belt portion slightly
touches the child’s neck or face, try
placing the child closer to the centre
of the vehicle. If the shoulder belt still
touches their face or neck, they need to
be returned to an appropriate booster
seat in the rear seat.
WARNING

[Always make sure larger children’s
seat belts are worn and properly
adjusted.

[NEVER allow the shoulder belt to
contact the child’s neck or face.

[Do not allow more than one child to
use a single seat belt.

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03
Child Restraint System (CRS) always
in the rear
Infants and younger children must be
restrained in an appropriate rearward-
facing or forward-facing CRS that has
first been properly secured to the rear
seat of the vehicle. Read and comply
with the instructions for installation and
use provided by the manufacturer of the
Child Restraint System.
WARNING

[Always follow the Child Restraint
System manufacturer’s instructions
for installation and use.

[Always properly restrain your child in
the Child Restraint System.

[Do not use an infant carrier or a
child safety seat that “hooks” over
a seatback, it may not provide
adequate protection in an accident.

[After an accident, we recommend
a HYUNDAI dealer check the Child
Restraint System, seat belts,
ISOFIX anchorages and top-tether
anchorages.
Selecting a Child Restraint
System (CRS)
When selecting a CRS for your child,
always:

[Make sure a CRS has a label certifying
that it meets applicable Safety
Standards of your country.

[Select a CRS based on your child’s
height and weight. The required label
or the instructions for use typically
provide this information.

[Select a CRS that fits the vehicle
seating position where it will be used.

[Read and comply with the warnings
and instructions for installation and
use provided with a CRS.
Child Restraint System types
There are three main types of Child
Restraint Systems: rearward-facing
seats, forward-facing seats, and booster
seats. They are classified according to
the child’s age, height and weight.

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03
Installing a Child Restraint
System (CRS)
WARNING
Before installing your Child Restraint
System always:
Read and follow the instructions
provided by the manufacturer of the
Child Restraint System.
Failure to follow all warnings and
instructions could increase the risk of
the SERIOUS INJURY or DEATH if an
accident occurs.
WARNING
If the vehicle head restraint prevents
proper installation of a Child Restraint
System, the head restraint of the
respective seating position shall be
readjusted or entirely removed.
After selecting a proper Child Restraint
System and checking that the Child
Restraint System fits properly in the rear
of this vehicle, you are ready to install
the Child Restraint System according to
the manufacturer’s instruction. There are
three general steps in installing the Child
Restraint Systems properly:

[Properly secure the Child Restraint
System to the vehicle. All Child
Restraint Systems must be secured
to the vehicle with the lap belt or lap
part of a lap/shoulder belt or with
the ISOFIX top-tether and/or ISOFIX
anchorage.
[Make sure the Child Restraint System
is firmly secured. After installing a
Child Restraint System to the vehicle,
push and pull the seat forward and
from side-to-side to verify that it is
securely attached to the seat. A Child
Restraint System secured with a seat
belt should be installed as firmly as
possible. However, some side-to- side
movement can be expected.
When installing a Child Restraint
System, adjust the vehicle seat (up
and down, forward and rearward)
so that your child fits in the Child
Restraint System in a comfortable
manner.

[Secure the child in the Child
Restraint System. Make sure the
child is properly strapped in the Child
Restraint System according to the
Child Restraint System manufacturer’s
instructions.
CAUTION
A Child Restraint System in a closed
vehicle can become very hot. To
prevent burns, check the seating
surface and buckles before placing
your child in the Child Restraint
System.

3-36
Safety system
ISOFIX anchorage and top-tether
anchorage (ISOFIX anchorages
system) for children
The ISOFIX system holds a Child
Restraint System during driving and in
an accident. This system is designed to
make installation of the Child Restraint
System easier and reduce the possibility
of improperly installing your Child
Restraint System.
The ISOFIX system uses anchors in the
vehicle and attachments on the Child
Restraint System. The ISOFIX system
eliminates the need to use seat belts to
secure the Child Restraint System to the
rear seats.
ISOFIX anchorages are metal bars built
into the vehicle. There are two lower
anchors for each ISOFIX seating position
that will accommodate a Child Restraint
System with lower attachments.
To use the ISOFIX system in your
vehicle, you must have a Child Restraint
System with ISOFIX attachments. (An
ISOFIX Child Restraint System may only
be installed if it has vehicle-specific or
universal approval in accordance with
the requirements of ECE-R44 or ECE-
R129.)
The Child Restraint System manufacturer
will provide you with instructions on how
to use the Child Restraint System with its
attachments for the ISOFIX anchorages.
OBC3030014R
ISOFIX anchorages have been provided
in the left and right outboard rear
seating positions. Their locations are
shown in the illustration. There are no
ISOFIX anchorages provided for the
centre rear seating position.
WARNING
Do not attempt to install a Child
Restraint System using ISOFIX
anchorages in the rear centre
seating position. There are no ISOFIX
anchorages provided for this seat.
Using the outboard seat anchorages,
for the CRS installation on the rear
centre seating position, can damage
the anchorages.

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03
OBC3030015
OBC3030016
[A] : ISOFIX Anchorage Position Indicator,
[B] : ISOFIX Anchorage
The ISOFIX anchorages symbols are
located on the left and right rear seat
cushions to identify the position of
the ISOFIX anchorages in your vehicle
(see arrows in illustration). Both rear
outboard seats are equipped with a
pair of ISOFIX anchorages as well as a
corresponding top-tether anchorage on
the back side of the rear seats.
(Child Restraint Systems with universal
approval according to ECE-R44 or ECE-
R129 need to be fixed additionally with a
top-tether connected to the back side of
the rear seats.)
ISOFIX anchorages are located the seat
cushion of the rear seat left and right
outboard seating positions.
To use the ISOFIX anchorages, open the
zipper if equipped.
Securing a Child Restraint System
with the “ISOFIX Anchorage
System”
To install a ISOFIX-compatible Child
Restraint System in either of the rear
outboard seating positions:
1. Move the seat belt buckle away from
the ISOFIX anchorages.
2. Move any other objects away from
the anchors that could prevent a
secure connection between the Child
Restraint System and the ISOFIX
anchorages.
3. Place the Child Restraint System on
the vehicle seat, then attach the seat
to the ISOFIX anchorages according to
the instructions provided by the Child
Restraint System manufacturer.
4. Follow the instructions of the Child
Restraint System’s manufacturer for
proper installation and connection
of the ISOFIX attachments on the
Child Restraint System to the ISOFIX
anchorages.

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Safety system
WARNING
Take the following precautions when
using the ISOFIX system:

[Read and follow all installation
instructions provided with your Child
Restraint System.

[To prevent the child from reaching
and taking hold of unretracted
seat belts, buckle all unused rear
seat belts and retract the seat belt
webbing behind the child. Children
can be strangled if a shoulder belt
becomes wrapped around their neck
and the seat belt tightens.

[NEVER attach more than one
Child Restraint System to a single
anchorage. This could cause the
anchor or attachment to come loose
or break.

[Always have the ISOFIX system
inspected by your dealer after an
accident. An accident can damage
the ISOFIX system and may not
properly secure the Child Restraint
System.
Securing a Child Restraint System
seat with “Top-tether Anchorage”
system
OBC3030017
Top-tether anchorages for Child
Restraint Systems are located on the
rear of the seatback.
OBC3030018
1. Route the Child Restraint System seat
strap over the seatback.
For vehicles with adjustable head
restraint, route the tether strap under
the head restraint and between the
head restraint posts, otherwise route
the tether strap over the top of the
seatback.
2. Connect the top-tether to the top-
tether anchorage, then tighten
the top-tether according to the
instructions of your Child Restraint
System’s manufacturer to firmly
attach the Child Restraint System to
the seat.

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WARNING
Take the following precautions when
installing the top-tether:

[Read and follow all installation
instructions provided with your Child
Restraint System.

[NEVER attach more than one Child
Restraint System to a single ISOFIX
top-tether anchorage. This could
cause the anchorage or attachment
to come loose or break.

[Do not attach the top-tether to
anything other than the correct top-
tether anchorage. It may not work
properly if attached to something
else.

[Child Restraint anchorages are
designed to withstand only those
loads imposed by correctly fitted
Child Restraint System.
Under no circumstances are they
to be used for adult seat belts or
harnesses or for attaching other
items or equipment to the vehicle.
Securing a Child Restraint System
with a lap/shoulder belt
When not using the ISOFIX system, all
Child Restraint Systems must be secured
to a rear seat with the lap part of a lap/
shoulder belt.
OHI038145
Installing a Child Restraint System
with a lap/shoulder belt
To install a Child Restraint System on the
rear seats, do the following:
1. Place the Child Restraint System on a
rear seat and route the lap/ shoulder
belt around or through the restraint,
following the restraint manufacturer’s
instructions. Make sure the seat belt
webbing is not twisted.
i Information
When using the rear centre seat belt, you
should also refer to the “Rear Centre Seat
Belt” in this chapter.