brake HYUNDAI I20 2020 Repair Manual

Driver assistance system
8-4
To temporarily pause the system
OBI3070004OBI3070004
Cruise Control will be paused when:
• Depressing the brake pedal.
• Pushing the
button.
• Shifting the gear to N (Neutral).
• Decreasing vehicle speed to less than
approximately 30 km/h (20 mph).
• ESC (Electronic Stability Control) is
operating.
• Downshifting to 2nd gear when in
Manual Shift mode.
The set speed will turn off but the Cruise
(
) indicator will stay on.
To resume the system
OBI3070005OBI3070005
Push the +, - switch or button.
If you push the + switch up or - switch
down, vehicle speed will be set to the
current speed on the cluster.
If you push the
button, vehicle
speed will resume to the preset speed.
Vehicle speed must be above 30 km/h
(20 mph) for the system to resume.

9-3
09
If you have a flat tire while
driving
If a tire goes flat while you are driving:
• Take your foot off the accelerator
pedal and let the vehicle slow down
while driving straight ahead. Do not
apply the brakes immediately or
attempt to pull off the road as this
may cause loss of vehicle control
resulting in an accident. When the
vehicle has slowed to such a speed
that it is safe to do so, brake carefully
and pull off the road. Drive off the
road as far as possible and park on
firm, level ground. If you are on a
divided highway, do not park in the
median area between the two traffic
lanes.
• When the vehicle is stopped, press
the hazard warning flasher button,
move the shift lever into N (Neutral,
for Automated manual transmission)
or neutral (for manual transmission
vehicle), apply the parking brake, and
place the ignition switch in the LOCK/
OFF position.
• Have all passengers get out of the
vehicle. Be sure they all get out on the
side of the vehicle that is away from
traffic.
• When changing a flat tire, follow the
instructions provided later in this
chapter.
IF THE ENGINE WILL NOT
START
If the engine doesn’t turn over
or turns over slowly
• Be sure the for Automated manual
transmission or N (Neutral) if it is a
vehicle. The engine starts only when
the shift lever is in N (Neutral).
• Check the battery connections to be
sure they are clean and tight.
• Turn on the interior light. If the light
dims or goes out when you operate
the starter, the battery is drained.
Do not push or pull the vehicle to start
it. This could cause damage to your
vehicle.
See instructions for “Jump Starting”
provided in this chapter.
WARNING
Push or pull starting the vehicle may
cause the catalytic converter to
overload which can lead to damage to
the emission control system.
If the engine turns over normally
but doesn’t start
• Check the fuel level and add fuel if
necessary.
If the engine still does not start, we
recommend that you call an authorized
HYUNDAI dealer for assistance.

9-5
09
CAUTION
• Improper jump starting procedure
can result in battery explosion and
acid burn hazard.
• Loosely connected battery cables
could damage the electronic control
units.
• To disconnect battery terminals
wait for at least 2 minutes to allow
discharge of high voltage or it could
lead to personal injury.
• While disconnecting, always
disconnect the -VE terminal first and
while connecting, always connect the
-VE terminal last.
NOTICE
To prevent damage to your vehicle:
• Only use a 12-volt power supply
(battery or jumper system) to jump
start your vehicle.
• Do not attempt to jump start your
vehicle by push-starting.
i Information
Pb
An inappropriately disposed
battery can be harmful to the
environment and human health.
Dispose the battery according to
your local law(s) or regulation.
Jump starting procedure
1. Position the vehicles close enough
that the jumper cables will reach, but
do not allow the vehicles to touch.
2. Avoid fans or any moving parts in the
engine compartment at all times, even
when the vehicles are turned off.
3. Turn off all electrical devices such
as radios, lights, air conditioning,
etc. Put the vehicles in N (Neutral,
for Automated manual transmission
vehicle) or neutral (for manual
transmission vehicle), and set the
parking brakes. Turn both vehicles
OFF.
OBI3090046LOBI3090046L
(-)
(+)
Booster BatteryBooster Battery
(-)
(+)
Jumper TerminalJumper Terminal
Jumper CablesJumper Cables
4. Connect the jumper cables in
the exact sequence shown in the
illustration. First connect one jumper
cable to the red, positive (+) jumper
terminal of your vehicle (1).
5. Connect the other end of the jumper
cable to the red, positive (+) battery/
jumper terminal of the assisting
vehicle (2).
6. Connect the second jumper cable to
the black, negative (-) battery/chassis
ground of the assisting vehicle (3).

9-7
09
If your temperature gauge indicates
overheating, you experience a loss of
power, or hear loud pinging or knocking,
the engine may be overheating. If this
happens, you should:
1. Pull off the road and stop as soon as it
is safe to do so.
2. Place the shift lever in N (Neutral,
for Automated manual transmission
vehicle) or neutral (for manual
transmission vehicle) and set the
parking brake. If the air conditioning is
ON, turn it OFF.
3. If engine coolant is running out under
the vehicle or steam is coming out
from the hood, stop the engine. Do
not open the hood until the coolant
has stopped running or the steaming
has stopped. If there is no visible
loss of engine coolant and no steam,
leave the engine running and check
to be sure the engine cooling fan is
operating. If the fan is not running,
turn the engine off.
WARNING
While the engine is running,
keep hands, clothing and
tools away from the moving
parts such as the cooling
fan and drive belt to
prevent serious injury.4. Check for coolant leaking from the
radiator, hoses or under the vehicle. (If
the air conditioning had been in use, it
is normal for cold water to be draining
from it when you stop.)
5. If engine coolant is leaking out,
stop the engine immediately and
we recommend that you call an
authorized HYUNDAI dealer for
assistance.
WARNING
NEVER remove the radiator
cap or the drain plug while
the engine and radiator are
hot. Hot coolant and steam
may blow out under
pressure, causing serious injury.
Turn the engine off and wait until the
engine cools down. Use extreme care
when removing the radiator cap. Wrap
a thick towel around it, and turn it
counterclockwise slowly to the first
stop. Step back while the pressure
is released from the cooling system.
When you are sure all the pressure
has been released, press down on the
cap, using a thick towel, and continue
turning counterclockwise to remove it.
IF THE ENGINE OVERHEATS

9-13
09
NOTICE
If original mounted tire is replaced
with the spare tire, the TPMS sensor
on the replaced spare wheel should be
initiated and we recommend that the
TPMS sensor on the original mounted
wheel be deactivated by a HYUNDAI
dealer. If the TPMS sensor on the
original mounted wheel located in the
spare tire carrier still activates, the
tire pressure monitoring system may
not operate properly. We recommend
that the system be serviced by an
authorized HYUNDAI dealer.
You may not be able to identify a low
tire by simply looking at it. Always use
a good quality tire pressure gauge to
measure the tire’s inflation pressure.
Please note that a tire that is hot (from
being driven) will have a higher pressure
measurement than a tire that is cold.
A cold tire means the vehicle is in parked
position for at least 3 hours or driven
less than 1.6 km (1 mile) in that period.
Allow the tire to cool before measuring
the inflation pressure. Always be sure
the tire is cold before inflating to the
recommended pressure.
NOTICE
We recommend that you use the tire
sealant approved by HYUNDAI if your
vehicle is equipped with a Tire Pressure
Monitoring System. The liquid sealant
can damage the tire pressure sensors.
WARNING
TPMS
• The TPMS cannot alert you to severe
and sudden tire damage caused by
external factors such as nails or road
debris.
• If you feel any vehicle instability,
immediately take your foot off
the accelerator, apply the brakes
gradually and with light force, and
slowly move to a safe position off the
road.
WARNING
Protecting TPMS
Tampering with, modifying, or disabling
the Tire Pressure Monitoring System
(TPMS) components may interfere with
the system’s ability to warn the driver
of low tire pressure conditions and/
or TPMS malfunctions. Tamper-ing
with, modifying, or disabling the Tire
Pressure Monitoring System (TPMS)
components may void the war-ranty for
that portion of the vehicle.

9-15
09
Changing tires
WARNING
A vehicle can slip or roll off of a jack
causing serious injury or death to you
or those nearby. Take the following
safety precautions:
• Do not get under a vehicle that is
supported by a jack.
• NEVER attempt to change a tire in
the lane of traffic. ALWAYS move the
vehicle completely off the road on
level, firm ground away from traffic
before trying to change a tire. If you
cannot find a level, firm place off
the road, call a towing service for
assistance.
• Be sure to use the jack provided with
the vehicle.
• ALWAYS place the jack on the
designated jacking positions on the
vehicle and NEVER on the bumpers
or any other part of the vehicle for
jacking support.
• Do not start or run the engine while
the vehicle is on the jack.
• Do not allow anyone to remain in the
vehicle while it is on the jack.
• Keep children away from the road
and the vehicle.Follow these steps to change your
vehicle’s tire:
1. Park on a level, firm surface.
2. Move the shift lever into N (Neutral,
for Automated manual transmission
vehicle) or neutral (for manual
transmission vehicle), apply the
parking brake, and place the ignition
switch in the LOCK/OFF position.
3. Press the hazard warning flasher
button.
4. Remove the wheel lug nut wrench,
jack, jack handle, and spare tire from
the vehicle.
5. Block both the front and rear of the
tire diagonally opposite of the tire you
are changing.
OBC3080006OBC3080006
6. Loosen the wheel lug nuts
counterclockwise one turn each in
the order shown above, but do not
remove any lug nuts until the tire has
been raised off of the ground.

9-19
09
1. Model Name
2. Maximum allowable load
3. When using the jack, set your parking
brake.
4. When using the jack, stop the engine.
5. Do not get under a vehicle that is
supported by a jack.
6. The designated locations under the
frame
7. When supporting the vehicle, the base
plate of jack must be vertical under
the lifting point.8. Shift into Reverse gear on vehicles
with manual transmission or move the
shift lever to the N (Neutral) position
on vehicles with Automated manual
transmission
9. The jack should be used on firm level
ground.
10. Jack manufacture
11. Production date
12. Representative company and address
Jack label
„„ExampleExample
• Type B • Type A
OHYK065011OHYK065011
OHYK065010OHYK065010
h The actual Jack label in the vehicle may differ from the illustration.
For more detailed specifications, refer to the label attached to the jack.

9-22
Emergency situations
When towing your vehicle in an
emergency without wheel dollies:
1. Place the ignition switch in the ACC
position.
2. Place the shift lever in N (Neutral).
3. Release the parking brake.
NOTICE
Failure to place the shift lever in N
(Neutral) when being towed with the
front wheels on the ground can cause
internal damage to the transmission.
Removable towing hook
OBC3080018OBC3080018
„„5 Door5 Door
1. Open the tailgate/trunk, and remove
the towing hook from the tool case.
2. Remove the hole cover pressing the
lower part of the cover on the front
bumper.
3. Install the towing hook by turning it
clockwise into the hole until it is fully
secured.
4. Remove the towing hook and install
the cover after use.

9-23
09
Emergency towing
OBC3080019OBC3080019
„„FrontFront
„„RearRear
OBC3080020OBC3080020
If towing is necessary, we recommend
you have it done by an authorized
HYUNDAI dealer or a commercial tow
truck service.
If towing service is not available in
an emergency, your vehicle may be
temporarily towed using a cable or chain
secured to the emergency towing hook
at the front (or rear) of the vehicle.
Use extreme caution when towing the
vehicle with a cable or chain. A driver
must be in the vehicle to steer it and
operate the brakes.
Towing in this manner may be done
only on hard-surfaced roads for a short
distance and at low speeds.
Also, the wheels, axles, power train,
steering and brakes must all be in good
condition.
CAUTION
The driver must be in the vehicle for
steering and braking operations when
the vehicle is being towed. Passengers
other than the driver must not be in the
vehicle.
Always follow these emergency towing
precautions:
• Place the ignition switch in the ACC
position so the steering wheel is not
locked.
• Place the shift lever in N (Neutral).
• Release the parking brake.
• Depress the brake pedal with more
force than normal since you will have
reduced braking performance.
• More steering effort will be required
because the power steering system
will be disabled.
• Use a vehicle heavier than your own to
tow your vehicle.
• The drivers of both vehicles should
communicate with each other
frequently.
• Before emergency towing, check that
the hook is not broken or damaged.
• Fasten the towing cable or chain
securely to the hook.
• Do not jerk the hook. Apply steady and
even force.

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