warning HYUNDAI I20 2023 Owners Manual

6-44
Driving your vehicle
Multi-Collision Brake (MCB)
Multi-Collision Brake controls the brake
automatically in the event of an accident
where the air bag deploys to reduce the
risk of additional accidents that may
occur.
System operation

[From the time the air bag deploys
Multi-Collision Brake monitors the
depression intensity of the brake
pedal and accelerator pedal for a short
period. The system operates when the
following conditions are met:
- The vehicle speed is under 112 mph
(180 km/h) at the time of collision.
- The brake pedal and accelerator
pedal is hardly depressed.

[When the driver steps on the brake
pedal over a certain level whilst
Multi-Collision Brake is active, the
braking power takes priority over
automatic braking by Multi-Collision
Brake system. However, if the driver
takes his/her foot off the brake pedal,
automatic braking by Multi-Collision
Brake system will maintain automatic
braking.
System off
Multi-Collision Brake is cancelled in the
following situations:
- The accelerator pedal is depressed
over a certain level.
- The vehicle stops.
- There is malfunction of ESC (Electronic
Stability Control) or system cannot
operate normally.
- Ten seconds have passed since
the brake has been controlled
automatically by Multi-Collision Brake
system.
WARNING

[Multi-Collision Brake decreases
the vehicle speed after a collision,
but it does not prevent the second
collision. You may drive away from
the collision spot to avoid other
dangerous situations by depressing
the accelerator pedal.

[After the vehicle is stopped by Multi-
Collision Brake, the system stops
controlling the brakes. Depending
on the situation, the driver should
depress the brake or the accelerator
pedal to prevent further accidents.

6-45
06
Good braking practices
WARNING
Whenever leaving the vehicle or
parking, always come to a complete
stop and continue to depress the brake
pedal. Move the shift lever into the 1st
gear (for Manual transmission vehicle)
or N (Neutral) position (for Automatic
transmission/Dual clutch transmission
vehicle), then apply the parking brake,
and place the ignition switch in the
LOCK/OFF position.
Vehicles parked with the parking brake
not applied or not fully engaged may
roll inadvertently and may cause injury
to the driver and others. ALWAYS apply
the parking brake before exiting the
vehicle.Wet brakes can be dangerous! The
brakes may get wet if the vehicle is
driven through standing water or if it is
washed.
Your vehicle will not stop as quickly if
the brakes are wet. Wet brakes may
cause the vehicle to pull to one side.
To dry the brakes, apply the brakes
lightly until the braking action returns to
normal. If the braking action does not
return to normal, stop as soon as it is
safe to do so and we recommend that
you call a HYUNDAI authorised repairer
for assistance.
DO NOT drive with your foot resting on
the brake pedal. Even light, but constant
pedal pressure can result in the brakes
overheating, brake wear, and possibly
even brake failure.
If a tyre goes flat whilst you are driving,
apply the brakes gently and keep the
vehicle pointed straight ahead whilst you
slow down. When you are moving slowly
enough for it to be safe to do so, pull off
the road and stop in a safe location.
Keep your foot firmly on the brake pedal
when the vehicle is stopped to prevent
the vehicle from rolling forward.

6-46
Driving your vehicle
Your vehicle may be equipped with
the ISG system, which reduces fuel
consumption by stopping and restarting
the engine automatically.
The engine starts automatically as soon
as the starting conditions are met.
NOTICE
When the engine automatically starts
by the ISG system, some warning lights
(ABS, ESC, ESC OFF, EPS or Parking
brake warning light) may turn on for a
few seconds. This happens because of
low battery voltage. It does not mean
the system is malfunctioning.
Activating the ISG
Prerequisite for activation
The ISG system operates in the following
situations.

[The driver’s seatbelt is fastened

[The driver’s door and bonnet are
closed

[The brake vacuum pressure is
adequate

[The battery sensor is activated and the
battery is sufficiently charged

[Outside temperature is not too low or
too high

[The vehicle is driven over a constant
speed and stops

[ The climate control system satisfies
the conditions

[The vehicle is sufficiently warmed up

[The incline is gradual

[The steering wheel is turned less than
180 degrees and then the vehicle
stops
Deactivating the ISG
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If you want to deactivate the ISG system,
press the ISG OFF button.
The light on the ISG OFF button will
illuminate.
If you press the ISG OFF button again,
the system will be activated and the light
on the ISG OFF button will turn off.
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6-51
06
ISG Indication
The ISG System is indicated by lamp on
the instrument cluster. If your vehicle is
equipped with a supervision cluster, the
notice will illuminate on the LCD display.
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The system may require the engine to
manually restart when the light on the
ISG OFF button will illuminate and if your
vehicle is equipped with a supervision
cluster, a warning message comes on
continuously.
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The engine will not start if the shift lever
is moved from the N (neutral) stage to
the D (driving) stage, manual mode, or R
(reverse) stage without stepping on the
brake pedal whilst the engine is stopped
automatically. At this time, if you press
the brake it will be restarted.

6-52
Driving your vehicle
Conventional MT vehicle (not MHEV or
not equipped with LATE Restart) is able
to restart engine, only in Neutral gear.
If you select a gear, without depressing
clutch pedal fully, then warning will be
displayed with beep. You should restart
the engine in Neutral gear position.
Unintentionally, when the engine is
turned off or the vehicle is moving, if the
gear is engaged and the clutch pedal
is not pressed, the system displays the
warning message as shown below. At
this time, if the driver presses the clutch
pedal all the way, the engine restarts
automatically. (Only with Late Restart
equipped ISG system, except MHEV)
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ISG malfunction
The system may not operate when:
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The ISG related sensors or system error
occurs.
The yellow AUTO STOP indicator
(
) on the instrument cluster will
stay on after blinking for 5 seconds and
the light on the ISG OFF button will
illuminate.
NOTICE

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turned off by pressing the ISG OFF
button again or if the ISG system
continuously does not work correctly,
have your vehicle inspected by a
professional workshop as soon as
possible. Hyundai recommends
to contact a HYUNDAI authorised
repairer.

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on, it may stop illuminating after
driving your vehicle at approximately
50 mph (80 km/h) for a maximum
of two hours and setting the fan
speed control knob below the 2nd
position. If the ISG OFF button light
continues to be illuminated in spite
of the procedure, have your vehicle
inspected by a professional workshop
as soon as possible. Hyundai
recommends to contact a HYUNDAI
authorised repairer.

6-53
06
NOTICE
If you want to use the ISG function, the
battery sensor needs to be calibrated
for approximately 4 hours with the
ignition off and then, turn the engine
on and off 2 or 3 times.
WARNING
When the engine is in Idle Stop mode,
it’s possible to restart the engine
without the driver taking any action.
Before leaving the car or doing
anything in the engine room area,
stop the engine by turning the ignition
switch to the LOCK (OFF) position or
removing the ignition key.

6-58
Driving your vehicle
Hazardous driving conditions
When hazardous driving elements are
encountered such as water, snow,
ice, mud and sand, take the following
precautions:

[Drive cautiously and maintain a longer
braking distance.

[Avoid abrupt braking or steering.

[When your vehicle is stuck in snow,
mud, or sand, use the second
gear. Accelerate slowly to avoid
unnecessary wheel spin.

[Put sand, rock salt, tyre chains or
other non-slip materials under the
wheels to provide additional traction
whilst the vehicle becomes stuck in
ice, snow, or mud.
WARNING
Downshifting with an Automatic
transmission, whilst driving on slippery
surfaces can cause an accident. The
sudden change in tyre speed could
cause the tyres to skid. Be careful when
downshifting on slippery surfaces.
Rocking the vehicle
If it is necessary to rock the vehicle to
free it from snow, sand, or mud, first
turn the steering wheel right and left to
clear the area around your front wheels.
Then, shift back and forth between the
1st gear and R (Reverse, for manual
transmission vehicle) or R (Reverse)
and a forward gear (for Automatic
transmission vehicle/Dual clutch
transmission vehicle).
Try to avoid spinning the wheels, and do
not race the engine.
To prevent transmission wear, wait until
the wheels stop spinning before shifting
gears. Release the accelerator pedal
whilst shifting, and press lightly on the
accelerator pedal whilst the transmission
is in gear. Slowly spinning the wheels in
forward and reverse directions causes
a rocking motion that may free the
vehicle.
WARNING
If the vehicle is stuck and excessive
wheel spin occurs, the temperature
in the tyres can increase very quickly.
If the tyres become damaged, a tyre
blow out or tyre explosion can occur.
This condition is dangerous - you and
others may be injured. Do not attempt
this procedure if people or objects are
anywhere near the vehicle.
If you attempt to free the vehicle, the
vehicle can overheat quickly, possibly
causing an engine compartment fire or
other damages. Try to avoid spinning
the wheels as much as possible to
prevent overheating of either the tyres
or the engine. DO NOT allow the vehicle
to spin the wheels above 35 mph (56
km/h).
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6-61
06
The severe weather conditions of winter
quickly wear out tyres and cause other
problems. To minimise winter driving
problems, you should take the following
suggestions:
Snow or icy conditions
You need to keep sufficient distance
between your vehicle and the vehicle in
front of you.
Apply the brakes gently. Speeding, rapid
acceleration, sudden brake applications,
and sharp turns are potentially
very hazardous practices. During
deceleration, use engine braking to the
fullest extent. Sudden brake applications
on snowy or icy roads may cause the
vehicle to skid.
To drive your vehicle in deep snow, it
may be necessary to use snow tyres or
to install tyre chains on your tyres.
Always carry emergency equipment.
Some of the items you may want to
carry include tyre chains, tow straps or
chains, a flashlight, emergency flares,
sand, a shovel, jumper cables, a window
scraper, gloves, ground cloth, coveralls,
a blanket, etc.
Snow tyres
WARNING
Snow tyres should be equivalent
in size and type to the vehicle’s
standard tyres. Otherwise, the safety
and handling of your vehicle may be
adversely affected.
If you mount snow tyres on your vehicle,
make sure to use radial tyres of the same
size and load range as the original tyres.
Mount snow tyres on all four wheels
to balance your vehicle’s handling in
all weather conditions. The traction
provided by snow tyres on dry roads
may not be as high as your vehicle’s
original equipment tyres. Check with
the tyre dealer for maximum speed
recommendations.
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WINTER DRIVING

6-62
Driving your vehicle
Tyre chains
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Since the sidewalls of radial tyres are
thinner than other types of tyres, they
may be damaged by mounting some
types of tyre chains on them. Therefore,
the use of snow tyres is recommended
instead of tyre chains. Do not mount
tyre chains on vehicles equipped with
aluminium wheels; if unavoidable use a
wire type chain. If tyre chains must be
used, use genuine HYUNDAI parts and
install the tyre chain after reviewing
the instructions provided with the tyre
chains. Damage to your vehicle caused
by improper tyre chain use is not
covered by your vehicle manufacturer’s
warranty.
NOTICE
If your vehicle has 215/45R17 or
205/55R17 size tyres do not use tyre
chain; they can damage your vehicle
(wheel, suspension and body).
WARNING
The use of tyre chains may adversely
affect vehicle handling:

[Drive less than 20 mph (30 km/h)
or the chain manufacturer’s
recommended speed limit,
whichever is lower.

[Drive carefully and avoid bumps,
holes, sharp turns, and other road
hazards, which may cause the vehicle
to bounce.

[Avoid sharp turns or locked wheel
braking.
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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.