2021 HYUNDAI I20 ECU

1-4
Introduction
DANGER
DANGER indicates a hazardous
situation which, if not avoided, will
result in death or serious injury.
WARNING
WARNING indicates a hazardous
situation which, if not avoided, could
result in death or serious injury.
CAUTION
CAUTION indicates a hazardous
situation which, if not avoided, could
result in minor or moderate injury.
NOTICE
NOTICE indicates a situation which,
if not avoided, could result in vehicle
damage.
FUEL REQUIREMENTS
Petrol engine
Unleaded
Your new vehicle is designed to use only
unleaded fuel having an Octane Rating
of RON (Research Octane Number) 91 /
AKI (Anti-Knock Index) 87 or higher. (Do
not use methanol blended fuels)
Your new vehicle is designed to obtain
maximum performance with UNLEADED
FUEL, as well as minimize 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 an authorized
HYUNDAI dealer for details.)
WARNING
• Do not “top off” after the nozzle
automatically shuts off when
refueling.
• Always check that the fuel cap is
installed securely to prevent fuel
spillage in the event of an accident.

4-6
Safety system
WARNING
Rear seatbacks
• The rear seatback must be securely
latched. If not, passengers and
objects could be thrown forward
resulting in serious injury or death
in the event of a sudden stop or
collision.
• Luggage and other cargo should be
laid flat in the cargo area. If objects
are large, heavy, or must be piled,
they must be secured. Under no
circumstances should cargo be piled
higher than the seatbacks. Failure to
follow these warnings cou ld result in
serious injury or death in the event of
a sudden stop, collision or rollover.
• No passenger should ride in the cargo
area or sit or lie on folded seatbacks
while the vehicle is moving. All
passengers must be properly seated
in seats and restrained properly while
riding.
• When resetting the seatback to
the upright position, make sure it
is securely latched by pushing it
forward and backwards.
• To avoid the possibility of burns,
do not remove the carpet in the
cargo area. Emission control devices
beneath this floor generate high
temperatures.
WARNING
After adjusting the seat, always check
that it is securely locked into place by
attempting to move the seat forward
or backward without using the lock
release lever. Sudden or unexpected
movement of the driver’s seat could
cause you to lose control of the vehicle
resulting in an accident.
WARNING
• Do not adjust the seat while wearing
seat belts. Moving the seat cushion
forward may cause strong pressure
on the abdomen.
• Use extreme caution so that hands
or other objects are not caught in the
seat mechanisms while the seat is
moving.
• Do not put a cigarette lighter on the
floor or seat. When you operate the
seat, gas may gush out of the lighter
and cause fire.
• If there are occupants in the rear
seats, be careful while adjusting the
front seat position.

4-7
04
Front seats
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Forward and rearward
To move the seat forward or rearward:
1. Pull the seat slide adjustment lever up
and hold it.
2. Slide the seat to the position you
desire.
3. Release the lever and make sure the
seat is locked in place.
Adjust the seat before driving, and make
sure the seat is locked securely by trying
to move forward and rearward without
using the lever. If the seat moves, it is
not locked properly.
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Seatback angle
To recline the seatback:
1. Lean forward slightly and lift up on the
seatback recline lever.
2. Carefully lean back on the seat and
adjust the seatback of the seat to the
position you desire.
3. Release the lever and make sure the
seatback is locked in place. (The lever
MUST return to its original position for
the seatback to lock.)
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Seat height adjustment (for driver’s
seat, if equipped)
To change the height of the seat, move
the lever upwards or downwards.
• To lower the seat, push the lever down
several times.
• To raise the seat, pull the lever up
several times.

4-14
Safety system
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
Intelligent variable transmission is in P
(Park) or the Manual transmission is in R
(Reverse) or 1st, 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.

4-16
Safety system
WARNING
• 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.
• When you fasten the seat belt, be
careful not to latch the seat belt
in buckles of other seat. It’s very
dangerous and you may not be
protected by the seat belt properly.
• Do not unfasten the seat belt and
do not fasten and unfasten the seat
belt repeatedly while driving. This
could result in loss of control, and
an accident causing death, serious
injury, or property damage.
• When fastening the seat belt, make
sure that the seat belt does not pass
over objects that are hard or can
break easily.
• Make sure there is nothing in the
buckle. The seat belt may not be
fastened securely.
Seat belt warning
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As a reminder to the driver (or front
passenger), the driver’s (or front
passenger’s) seat belt warning lights will
illuminate for approximately 6 seconds
each time you turn the ignition switch
ON regardless of belt fastening.
If the driver’s (or front passenger’s)
seat belt is not fastened when the
ignition switch is turned ON or if it is
disconnected after the ignition switch
is turned ON, the seat belt warning light
will illuminate until the belt is fastened.
If you continue not to fasten the seat
belt and you drive over 9 km/h, the
illuminated warning light will start to
blink until you drive under 6 km/h.
If you continue not to fasten the seat
belt and you drive over 20 km/h (12 mph)
the seat belt warning chime will sound
for approximately 100 seconds and the
corresponding warning light will blink.

4-23
04
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 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 Child
Restraint System 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 should 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.In the event
of an accident, children are afforded the
best safety restrained by a proper Child
Restraint System in the rear seats.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 center 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.
Seat belt use and injured people
A seat belt should be used when an
injured person is being transported.
Consult a physician for specific
recommendations.
One person per belt
Two people (including children) should
never attempt to use a single seat belt.
This could increase the severity of
injuries in case of an accident.

4-25
04
CHILD RESTRAINT SYSTEM
Children riding in the car should sit
in the rear seat and must always be
properly restrained to minimize the
risk of injury in an accident, sudden
stop or sudden maneuver. According
to accident statistics, children are safer
when properly restrained in the rear
seats than in the front seat. Larger
children not in a child restraint should
use one of the seat belts provided.
You should be aware of the specific
requirements in your country. Child and/
or infant safety seats must be properly
placed and installed in the rear seat.
You must use a commercially available
child restraint system that meets the
requirements of the Safety Standards of
your country.
Child restraint systems are designed to
be secured in vehicle seats by the lap
belt portion of a lap/shoulder belt.
Children could be injured or killed in a
crash if their restraints are not properly
secured. For small children and babies, a
child seat or infant seat must be used.
Before buying a particular child restraint
syst em, make sure it fits your car seat
and seat belts, and fits your child. Follow
all the instructions provided by the
manufacturer when installing the child
restraint system. WARNING
• A child restraint system must be
placed in the rear seat. Never install
a child or infant seat on the front
passenger’s seat. Should an accident
occur and cause the passenger-side
air bag to deploy, it could severely
injure or kill an infant or child seated
in an infant or child seat. Thus only
use a child restraint in the rear seat of
your vehicle.
• A seat belt or child restraint system
can become very hot if it is left in a
closed vehicle on a sunny day, even
if the outside temperature does not
feel hot. Be sure to check the seat
cover and buckles before placing a
child there.
• When the child restraint system is not
in use, store it in the luggage area or
fasten it with a seat belt so that it will
not be thrown forward in the case of
a sudden stop or an accident.
• Children may be seriously injured
or killed by an inflating air bag. All
children, even those too large for
child restraints, must ride in the rear
seat.

4-26
Safety system
WARNING
To reduce the chance of serious or fatal
injuries:
• Children of all ages are safer when
restrained in the rear seat. A child
riding in the front passenger seat can
be forcefully struck by an inflating
air bag resulting in serious or fatal
injuries.
• Always follow the instructions for
installation and use of the child
restraint maker.
• Always make sure the child seat is
secured properly in the car and your
child is securely restrained in the
child seat.
• Never hold a child in your arms or lap
when riding in a vehicle. The violent
forces created during a crash will tear
the child from your arms and throw
the child against the car’s interior.
• Never put a seat belt over yourself
and a child. During a crash, the
belt could press deep into the child
causing serious internal injuries.
• Never leave children unattended
in a vehicle - not even for a short
time. The car can heat up very
quickly, resulting in serious injuries
to children inside. Even very young
children may inadvertently cause the
vehicle to move, entangle themselves
in the windows, or lock themselves or
others inside the vehicle.
• Never allow two children, or any two
persons, to use the same seat belt.• Children often squirm and reposition
themselves improperly. Never let
a child ride with the shoulder belt
under their arm or behind their back.
Always properly position and secure
children in rear seat.
• Never allow a child to stand-up or
kneel on the seat or floorboard of a
moving vehicle. During a collision
or sudden stop, the child can be
violently thrown against the vehicles
interior, resulting in serious injury.
• Never use an infant carrier or a
child safety seat that “hooks” over
a seatback, it may not provide
adequate security in an accident.
• Seat belts can become very hot,
especially when the car is parked in
direct sunlight. Always check seat
belt buckles before fastening them
over a child.
• After an accident, we recommend
that the system be checked by an
authorized HYUNDAI dealer.
• If there is not enough space to place
the child restraint system because
of the driver’s seat, install the child
restraint system in the rear right seat.