ESP HYUNDAI I20 2022 Service Manual

08
8-11
System malfunction and
precautions
System malfunction
After starting the engine, a beep will
sound when the gear is shifted to R
(Reverse) to indicate the system is
operating normally.
However, if one or more of the following
occurs, first check whether the
ultrasonic sensor is damaged or blocked
with foreign material. If it still does not
work properly, we recommend that the
system be inspected by an authorized
HYUNDAI dealer.
• The audible warning does not sound.
• The buzzer sounds intermittently.
• The ‘Sensor error or blockage. System
limited’ warning message appears on
the cluster.
OBI3070014OBI3070014
WARNING
• Reverse Parking Distance Warning
is a supplemental system. The
operation of the system can be
affected by several factors (including
environmental conditions). It is the
responsibility of the driver to always
check the rear view before and while
parking.
• Your new vehicle warranty does not
cover any accidents or damage to
the vehicle due to the malfunction of
Reverse Parking Distance Warning.
• Pay close attention when driving near
objects, pedestrians, and especially
children. Some objects may not be
detected by the ultrasonic sensors,
due to the objects distance, size or
material, all of which can limit the
effectiveness of the sensor.
Limitations of the system
• Reverse Parking Distance Warning
may not operate normally when:
- Moisture is frozen to the sensor
- Sensor is covered with foreign
material, such as snow or water (The
system will operate normally when
such foreign material are removed.)
- The weather is extremely hot or cold
- The sensor or sensor assembly is
disassembled
- The surface of the sensor is pressed
hard or an impact is applied with a
hard object
- The surface of the sensor is
scratched with a sharp object
- The sensors or its surrounding area is
directly sprayed with high pressure
washer

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.

9-11
09
Low tire pressure
telltale
Low tire pressure position
telltale and tire pressure telltale
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When the tire pressure monitoring
system warning indicators are
illuminated and a warning message
displayed on the cluster LCD display,
one or more of your tires is significantly
under-inflated. The low tire pressure
position telltale light will indicate which
tire is significantly under-inflated by
illuminating the corresponding position
light.
If either telltale illuminates, immediately
reduce your speed, avoid hard cornering
and anticipate increased stopping
distances. You should stop and check
your tires as soon as possible. Inflate
the tires to the proper pressure as
indicated on the vehicle’s placard or tire
inflation pressure label located on the
driver’s side center pillar outer panel.
If you cannot reach a service station or
if the tire cannot hold the newly added
air, replace the low pressure tire with a
spare tire.
If you drive the vehicle for about 10
minutes at speeds above 25 km/h after
replacing the low pressure tire with the
spare tire, the following will happen:
• The TPMS malfunction indicator may
blink for approximately 1 minute and
then remain continuously illuminated
because the TPMS sensor is not
mounted on the spare wheel.
NOTICE
In winter or cold weather, the low tire
pressure telltale may be illuminated if
the tire pressure was adjusted to the
recommended tire inflation pressure
in warm weather. It does not mean
your TPMS is malfunctioning because
the decreased temperature leads to a
proportional lowering of tire pressure.
When you drive your vehicle from a
warm area to a cold area or from a cold
area to a warm area, or the outside
temperature is greatly higher or lower,
you should check the tire inflation
pressure and adjust the tires to the
recommended tire inflation pressure.
WARNING
Low pressure damage
Significantly low tire pressure makes
the vehicle unstable and can contribute
to loss of vehicle control and increased
braking distances.
Continued driving on low pressure tires
can cause the tires to overheat and fail.

9-18
Emergency situations
When driving with the compact spare
tire mounted to your vehicle:
• Check the tire pressure after installing
the compact spare tire. The compact
spare tire should be inflated to 420
kPa (60 psi).
• Do not take this vehicle through an
automatic car wash while the compact
spare tire is installed.
• Do not use the compact spare tire on
any other vehicle because this tire
has been designed especially for your
vehicle.
• The compact spare tire’s tread life
is shorter than a regular tire. Inspect
your compact spare tire regularly and
replace worn compact spare tires with
the same size and design, mounted on
the same wheel.
• Do not use more than one compact
spare tire at a time.
• Do not tow a trailer while the compact
spare tire is installed.
i Information
When the original tire and wheel are
repaired and reinstalled on the vehicle,
the lug nut torque must be set correctly
to prevent wheel vibration. The correct
lug nut tightening torque is 11~13 kgf.m
(79~94 lbf.ft).
NOTICE
To prevent damaging the compact
spare tire and your vehicle:
• Drive slowly enough for the road
conditions to avoid all hazards, such
as a potholes or debris.
• Avoid driving over obstacles. The
compact spare tire diameter is
smaller than the diameter of a
conventional tire and reduces the
ground clearance approximately 25
mm (1 inch).
• Do not use tire chains on the compact
spare tire. Because of the smaller
size, a tire chain will not fit properly.
• Do not use the compact spare tire
on any other wheels, nor should
standard tires, snow tires, wheel
covers or trim rings be used with the
compact spare wheel.

9-25
09
Your vehicle is equipped with
emergency commodities to help you
respond to emergency situation.
First aid kit
Supplies for use in giving first aid such
as bandage and adhesive tape, etc. are
provided.
Triangle reflector
Place the triangle reflector on the road
to warn oncoming vehicles during
emergencies, such as when the vehicle
is parked by the roadside due to
problems.
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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

10-6
Maintenance
You should exercise the utmost care
to prevent damage to your vehicle and
injury to yourself whenever performing
any maintenance or inspection
procedures. Inadequate, incomplete
or insufficient servicing may result in
operational problems with your vehicle
that could lead to vehicle damage, an
accident, or personal injury.
Owner’s responsibility
i Information
Maintenance Service and Record
Retention are the owner’s responsibility.
We recommend in general that you have
your vehicle serviced by an authorized
HYUNDAI dealer.
You should retain documents that show
proper maintenance has been performed
on your vehicle in accordance with
the scheduled maintenance service
charts shown on the following pages.
You need this information to establish
your compliance with the servicing
and maintenance requirements of your
vehicle warranties.
Detailed warranty information is
provided in your Service Passport.
Repairs and adjustments required as
a result of improper maintenance or a
lack of required maintenance are not
covered when your vehicle is covered by
warranty.
Owner maintenance
precautions
Improper or incomplete service may
result in problems. This chapter gives
instructions only for the maintenance
items that are easy to perform.
i Information
Improper owner maintenance during the
warranty period may affect warranty
coverage. For details, read the separate
Service Passport provided with the
vehicle. If you’re unsure about any
servicing or maintenance procedure, we
recommend that the system be serviced by
an authorized HYUNDAI dealer.
WARNING
Maintenance work
• Performing maintenance work on a
vehicle can be dangerous. You can
be seriously injured while performing
some maintenance procedures.
If you lack sufficient knowledge
and experience or the proper tools
and equipment to do the work, we
recommend that the system be
serviced by an authorized HYUNDAI
dealer.
• Working under the hood with the
engine running is dangerous. It
becomes even more dangerous when
you wear jewelry or loose clothing.
These can become entangled in
moving parts and result in injury.
Therefore, if you must run the engine
while working under the hood, make
certain that you remove all jewelry
(especially rings, bracelets, watches,
and necklaces) and all neckties,
scarves, and similar loose clothing
before getting near the engine or
cooling fans.
MAINTENANCE SERVICES

10-59
10
Wheel size designation
Wheels are also marked with important
information that you need if you ever
have to replace one. The following
explains what the letters and numbers in
the wheel size designation mean.
Example wheel size designation:
5.0JX14
5.0 - Rim width in inches.
J - Rim contour designation.
14 - Rim diameter in inches
Tire speed ratings
The chart below lists many of the
different speed ratings currently being
used for passenger car tires. The speed
rating is part of the tire size designation
on the sidewall of the tire. This symbol
corresponds to that tire’s designed
maximum safe operating speed.
Speed Rating
SymbolMaximum Speed
S180 km/h (112 mph)
T190 km/h (118 mph)
H 210 km/h (130 mph)
V 240 km/h (149 mph)
W 270 km/h (168 mph)
Y 300 km/h (186 mph)

3. Checking tire life (TIN : Tire
Identification Number)
Any tires that are over 6 years old,
based on the manufacturing date,
(including the spare tire) should be
replaced by new ones. You can find
the manufacturing date on the tire
sidewall (possibly on the inside of
the wheel), displaying the DOT Code.
The DOT Code is a series of numbers
on a tire consisting of numbers and
English letters. The manufacturing date
is designated by the last four digits
(characters) of the DOT code.
DOT : XXXX XXXX OOOO
The front part of the DOT means a plant
code number, tire size and tread pattern
and the last four numbers indicate week
and year manufactured.
For example:
DOT XXXX XXXX 2220 represents that
the tire was produced in the 22th week
of 2020.
WARNING
Tire age
Tires degrade over time, even when
they are not being used.
Regardless of the remaining tread, it is
recommended that tires generally be
replaced after six (6) years of normal
service. Heat caused by hot climates
or frequent high loading conditions can
accelerate the aging process. Failure to
follow this warning could cause sudden
tire failure, which could lead to a loss
of control and an accident involving
serious injury or death.

10-60
Maintenance
4. Tire ply composition and material
The number of layers or plies of
rubber-coated fabric in the tire. Tire
manufacturers also must indicate the
materials in the tire, which include steel,
nylon, polyester, and others. The letter
“R” means radial ply construction; the
letter “D” means diagonal or bias ply
construction; and the letter “B” means
belted-bias ply construction.
5. Maximum permissible inflation
pressure
This number is the greatest amount
of air pressure that should be put in
the tire. Do not exceed the maximum
permissible inflation pressure. Refer to
the Tire and Loading Information label
for recommended inflation pressure.
6. Maximum load rating
This number indicates the maximum
load in kilograms and pounds that can
be carried by the tire. When replacing
the tires on the vehicle, always use a
tire that has the same load rating as the
factory installed tire.
7. Uniform tire quality grading
Quality grades can be found where
applicable on the tire sidewall between
tread shoulder and maximum chapter
width.
For example:
TREAD wear 200
TRACTION AA
TEMPERATURE A
Tread wear
The tread wear grade is a comparative
rating based on the wear rate of the tire
when tested under controlled conditions
on a specified government test course.
For example, a tire graded 150 would
wear one-and-a-half times (1½) as well
on the government course as a tire
graded 100.
The relative performance of tires
depends upon the actual conditions
of their use, however, and may depart
significantly from the norm due to
variations in driving habits, service
practices and differences in road
characteristics and climate.
These grades are molded on the side-
walls of passenger vehicle tires. The
tires available as standard or optional
equipment on your vehicle may vary
with respect to grade.

10-72
Maintenance
Engine Compartment Fuse Panel (1.0 T-GDi)
Fuse Name SymbolFuse
RatingCircuit Protected
BATT250A ICU Junction Block (IPS2, IPS4, IPS6, IPS9, IPS10)
IG2
40AE/R Junction Block (RLY.9).
[With Smart Key] PDM Relay Box (IG2 Relay)
[W/O Smart Key] Ignition Switch
C/FAN
60A E/R Junction Block (RLY.2)
IGN COIL
20A Ignition Coil #1/#2/#3
ECU5
20A ECU
SENSOR 1
10AE/R Junction Block (RLY.2/3),
Oil Control Valve #1/#2 (Intake/Exhaust),
Purge Control Solenoid Valve
SENSOR 2
10A Oxygen Sensor (Up/Down)
RR DEFOG
40A ICU Junction Block (Rear Defogger Relay)
ABS 1
40A ABS/ESP Control Module
ABS 2
30A ABS/ESP Control Module
BLOWER
40A E/R Junction Block (RLY.10)
WIPER 2
10A E/R Junction Block (RLY. 5), Front Wiper Motor, IBU
SENSOR8
15A E/R Junction Block (RLY. 6)
SENSOR3
10A RCV Control Solenoid Valve
ECU6
15A ECU
WIPER 1
25A E/R Junction Block (RLY. 5), Front Wiper Motor