2023 HYUNDAI I20 climate control

5-75
05
System maintenance
Climate control air filter
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[A] : Outside air, [B] : Recirculated air
[C] : Climate control air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core
The climate control air filter installed
behind the glove box filters the dust
or other pollutants that come into the
vehicle from the outside through the
heating and air conditioning system. If
dust or other pollutants accumulate in
the filter over a period of time, the air
flow from the air vents may decrease,
resulting in moisture accumulation
on the inside of the windscreen even
when the outside (fresh) air position is
selected.
If this happens, we recommend that the
climate control air filter be replaced by a
HYUNDAI authorised repairer.
i Information

5-77
05
WARNING
Windscreen heating
Do not use the
or position
during cooling operation in extremely
humid weather. The difference
between the temperature of the
outside air and that of the windscreen
could cause the outer surface of the
windscreen to fog up, causing loss of
visibility. In this case, set the mode
selection knob or button to the

position and fan speed control knob or
button to lower speed.

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set the temperature control knob
to the highest temperature setting
(rotated all the way to the right) and
the fan speed control to the highest
setting.

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whilst defrosting or defogging, set the
mode to the floor-defrost position.

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from the windscreen, rear window,
outside rear view mirrors, and all side
windows.

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bonnet and air inlet in the cowl grill
to improve heater and defroster
efficiency and to reduce the
probability of fogging up inside of the
windscreen.
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starting, then a brief engine warm up
period may be required for the vented air
flow to become warm or hot.
Manual climate control system
To defog inside windscreen
OBC3050118
1. Select any fan speed except
"0"position.
2. Select the desired temperature.
3. Select the
or position.
4. The outside (fresh) air will be selected
automatically. Additionally, the
air conditioning (if equipped) will
automatically operate if the mode is
selected to the
position.
If the air conditioning and outside
(fresh) air position are not selected
automatically, press the corresponding
button manually.
WINDSCREEN DEFROSTING AND DEFOGGING

5-78
Convenient features
To defrost outside windscreen
OBC3050119
1. Set the fan speed to the highest
(extreme right) position.
2. Set the temperature to the extreme
hot position.
3. Select the
position.
4. The outside (fresh) air and air
conditioning (if equipped) will be
selected automatically.
Automatic climate control
system
To defog inside windscreen
OBC3050120R
1. Select desired blower speed.
2. Select desired temperature.
3. Press the defroster button (
).
4. The air-conditioning will turn on
according to the detected ambient
temperature, fresh mode and higher
blower speed will be selected
automatically.
If the air-conditioning, fresh mode and
higher blower speed are not selected
automatically, adjust the corresponding
button or knob manually.
If the
position is selected, lower
blower speed is controlled to higher
blower speed.

5-79
05
To defrost outside windscreen
OBC3050121R
1. Set blower speed to the highest
position.
2. Set temperature to the extreme hot
(HI) position.
3. Press the defroster button (
).
4. The air-conditioning will turn on
according to the detected ambient
temperature and fresh mode will be
selected automatically.
If the
position is selected, lower
blower speed is controlled to higher
blower speed.
Auto defogging system (only
for automatic climate control
system, if equipped)
OBC3050124
Auto defogging helps reduce the
possibility of fogging up the inside of the
windscreen by automatically sensing the
moisture on inside the windscreen.
The auto defogging system operates
when the heater or air conditioning is on.
When the Auto Defogging
System operates, the indicator
will illuminate.
If a high amount of humidity is detected
in the vehicle, the Auto Defogging
System will be enabled.
The following steps will be performed
automatically:
Step 1) The A/C button will turn ON.
Step 2) The air intake control will change
to Fresh mode under low outside
temperature.
Step 3) The mode will be changed to
defrost to direct airflow to the
windscreen.
Step 4) The blower speed will be
increased.

5-81
05
Rear window defroster
OBC3050122
„Manual climate control system
„Automatic climate control system
OBC3050123R
The defroster heats the window to
remove frost, fog and thin ice from the
interior and exterior of the rear window,
whilst the engine is running.

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press the rear window defroster
button located in the centre facia
switch panel. The indicator on the rear
window defroster button illuminates
when the defroster is ON.

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window defroster button again.
i Information

6-35
06
Power brakes
Your vehicle has power-assisted brakes
that adjust automatically through normal
usage.
If the engine is not running or is turned
off whilst driving, the power assist for
the brakes will not work. You can still
stop your vehicle by applying greater
force to the brake pedal than typical.
The stopping distance, however, will be
longer than with power brakes.
When the engine is not running, the
reserve brake power is partially depleted
each time the brake pedal is applied.
Do not pump the brake pedal when the
power assist has been interrupted.
Pump the brake pedal only when
necessary to maintain steering control
on slippery surfaces.
WARNING
Take the following precautions:

[Do not drive with your foot resting
on the brake pedal. This will create
abnormal high brake temperatures,
excessive brake lining and pad wear,
and increased stopping distances.

[When descending down a long or
steep hill, downshift to a lower
gear in order to control your
speed without using the brake
pedal excessively. Applying the
brakes continuously will cause
the brakes to overheat and could
result in a temporary loss of braking
performance.

[Wet brakes may impair the vehicle’s
ability to safely slow down; the
vehicle may also pull to one side
when the brakes are applied.
Applying the brakes lightly will
indicate whether they have been
affected in this way. Always test your
brakes in this fashion after driving
through deep water. To dry the
brakes, lightly tap the brake pedal to
heat up the brakes whilst maintaining
a safe forward speed until brake
performance returns to normal.
Avoid driving at high speeds until the
brakes function correctly.
Disc brakes wear indicator
When your brake pads are worn and new
pads are required, you will hear a high
pitched warning sound from your front
or rear brakes. You may hear this sound
come and go or it may occur whenever
you depress the brake pedal.
Note that some driving conditions or
climates may cause a brake squeal
when you first apply (or lightly apply)
the brakes. This is normal and does not
indicate a problem with your brakes.
NOTICE
To avoid costly brake repairs, do not
continue to drive with worn brake pads.
i Information
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BRAKING SYSTEM

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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6-50
Driving your vehicle
Condition of ISG system
operation
The ISG system will operate under the
following condition:

[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 vehicle is not on a steep road
grade (Except Manual Transmission)

[The steering wheel is not at a sharp
angle

[The vehicle is not at a high elevation

[The front windscreen defroster is off

[You have not selected Manual shift
mode (Except Manual Transmission)

[When sufficient time has elapsed after
shifting to R (Reverse) was released
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