HYUNDAI I20 2021 Owners Manual

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06
Automatic heating and air
conditioning
The Automatic Climate Control System
is controlled by setting the desired
temperature.
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1. Press the AUTO button.
The modes, fan speeds, air intake and
air-conditioning will be controlled
automatically by the temperature setting
you select.
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2. Push the temperature control switch
to set the desired temperature. If
the temperature is set to the lowest
setting (Lo), the air conditioning
system will operate continuously.To turn the automatic operation off,
select any button of the following:
- Mode selection button
- Front windshield defrost button (Press
the button one more time to deselect
the front windshield defroster function.
- Fan speed control button
The selected function will be controlled
manually while other functions operate
automatically.
For your convenience and to improve
the effectiveness of the climate control,
use the AUTO button and set the
temperature to 23°C (73°F).
i Information
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Never place anything near the sensor
located to ensure better control of the
heating and cooling system.

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Convenient features
Manual heating and air conditioning
The heating and cooling system can be controlled manually by pressing buttons other
than the AUTO button. In this case, the system works sequentially according to the
order of buttons selected.
When pressing any button (or turning any knob) except the AUTO button while using
automatic operation, the functions not selected will be controlled automatically.
1. Start the engine.
2. Set the mode to the desired position.
To improve the effectiveness of heating and cooling:
- Heating:
- Cooling:
3. Set the temperature control to the desired position.
4. Press the fresh button.
5. Set the fan speed control to the desired speed.
6. If air conditioning is desired, turn the air conditioning system on.
7. Press the AUTO button in order to convert to full automatic control of the system.
Mode selection
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The mode selection button controls the
direction of the air flow through the
ventilation system.
Face-Level (B, D, E)
Air flow is directed toward the upper
body and face. Additionally, each outlet
can be controlled to direct the air
discharged from the outlet.
Bi-Level (B, C, D, E)
Air flow is directed towards the face and
the floor.
Floor-Level (A, C, D)
Most of the air flow is directed to the
floor, with a small amount of the air
being directed to the windshield, side
window defrosters and side vents.
Floor/Defrost-Level
(A, C, D)
Most of the air flow is directed to the
floor and the windshield with a small
amount directed to the side window
defrosters and side vents.
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Defrost-Level (A, D)
Most of the air flow is directed to the
windshield with a small amount of air
directed to the side window defrosters.

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Convenient features
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Instrument panel vents
You can adjust the direction of air
delivered from these vents using the
vent control lever as shown.
Temperature control
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The temperature will increase by
pushing the switch to up.
The temperature will decrease by
pushing the switch to down.
The temperature will increase or
decrease by 0.5°C (1°F) for each
incremental location. When set to the
lowest temperature setting, the air
conditioning will operate continuously.
Temperature conversion
If the battery has been discharged or
disconnected, the temperature mode
display will reset to Centigrade.
To change the temperature unit from °C
to °F or °F to °C :
- Automatic climate control system
Press the AUTO button for 3 seconds
while pressing the OFF button.
- Instrument cluster
Go to User Settings o Units o
Temperature Unit.
The temperature unit on both the cluster
LCD display and the climate control
screen will change.

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Air intake control
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The air intake control button is used to
select either Fresh mode (outside air) or
Recirculation mode (cabin air).
Recirculated air position
The indicator light on the
button illuminates when
the recirculated air
position is selected.
With the recirculated air
position selected, air from
the passenger
compartment will be
drawn through the climate
control system and heated
or cooled according to the
function selected.
Outside (fresh) air position
The indicator light on the
button will turn off when
the outside (fresh) air
position is selected.
With the outside (fresh) air
position selected, air
enters the vehicle from
outside and is heated or
cooled according to the
function selected.
i Information
Operating the system primarily in Fresh
mode is recommended. Use Recirculation
mode temporarily only when needed.
Prolonged operation of the heater in
Recirculation mode and without the A/C
ON can cause fogging of the windshield.
In addition, prolonged use of the A/C
ON in Recirculation mode may result in
excessively dry, dehumidified air in the
cabin and may promote formation of
musty vent odor due to stagnant air.
WARNING
• Continued use of the climate control
system operation in the recirculated
air position can cause drowsiness
or sleepiness, that may cause loss
of vehicle control resulting in an
accident. Set the air intake control to
the outside (fresh) mode as much as
possible while driving.
• Continued use of the climate
control system operation in the
recirculated air position (without
the air conditioning selected) may
allow humidity to increase inside the
vehicle which may fog the glass and
obscure visibility.
• Do not sleep in a vehicle with air
conditioning or heating system on. It
may cause serious harm or death due
to a drop in the oxygen level and/or
body temperature.

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Convenient features
Fan speed control
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Push the switch to up to increase the fan
speed and airflow. Push the switch to
down to decrease fan speed and airflow.
NOTICE
Operating the fan speed when the
ignition switch is in the ON position
could cause the battery to discharge.
Operate the fan speed when the engine
is running.
Air conditioning
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Push the A/C button to manually turn
the system on (indicator light will
illuminate) and off.
OFF mode
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Push the OFF button to turn off the
climate control system. You can still
operate the mode and air intake buttons
with the ignition switch in the ON
position.

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System operation
Ventilation
1. Select the Face Level mode.
2. Set the air intake control to fresh
mode.
3. Set the temperature control to the
desired position.
4. Set the fan speed control to the
desired speed.
Heating
1. Select the Floor Level mode.
2. Set the air intake control to fresh
mode.
3. Set the temperature control to the
desired position.
4. Set the fan speed control to the
desired speed.
5. If desired, turn the air conditioning ON
with the temperature control knob set
to heat in order to dehumidify the air
before it enters into the cabin.
If the windshield fogs up, select the
Floor & Defrost
mode or press the
Front Defrost
mode.
Operation Tips
• To keep dust or unpleasant fumes
from entering the vehicle through the
ventilation system, temporarily set the
air intake control to the recirculation
mode. Be sure to return the control
to fresh mode position when the
irritation has passed to keep fresh air
in the vehicle. This will help keep the
driver alert and comfortable.
• To prevent interior fog on the
windshield, set the air intake control
to fresh mode and fan speed to
the desired position, turn on the
air conditioning system, and adjust
the temperature control to desired
temperature.
Air conditioning
HYUNDAI Air Conditioning Systems are
filled with R-134a refrigerant.
1. Start the engine.
2. Push the air conditioning button.
3. Select the Face Level
mode.
4. Set the air intake control to
Recirculation mode temporarily to
allow the cabin to cool quickly. When
the desired temperature in the cabin
is reached, change the air intake
control back to Fresh mode.
5. Adjust the fan speed control and
temperature control to maintain
maximum comfort.

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NOTICE
• The refrigerant system should only
be serviced by trained and certified
technicians to insure proper and safe
operation.
• The refrigerant system should be
serviced in a well-ventilated place.
• The air conditioning evaporator
(cooling coil) shall never be repaired
or replaced with one removed from
a used or salvaged vehicle and new
replacement MAC evaporators shall
be certified (and labeled) as meeting
SAE Standard J2842.
i Information
• When using the air conditioning system,
monitor the temperature gauge closely
while driving up hills or in heavy traffic
when outside temperatures are high.
Air conditioning system operation may
cause engine overheating. Continue
to use the blower fan but turn the
air conditioning system off if the
temperature gauge indicates engine
overheating.
• When opening the windows in humid
weather, air conditioning may create
water droplets inside the vehicle. Since
excessive water droplets may cause
damage to electrical equipment, air
conditioning should only be used with
the windows closed.
Air conditioning system operation tips
• If the vehicle has been parked in direct
sunlight during hot weather, open the
windows for a short time to let the hot
air inside the vehicle escape.
• After sufficient cooling has been
achieved, switch back from
recirculation mode to fresh mode.
• To help reduce moisture inside of
the windows on rainy or humid
days, decrease the humidity inside
the vehicle by operating the air
conditioning system with the windows
and sunroof closed.
• During air conditioning system
operation, you may occasionally
notice a slight change in engine speed
as the air conditioning compressor
cycles. This is a normal system
operation characteristic.
• Use the air conditioning system
every month only for a few minutes
to ensure maximum system
performance.
• When using the air conditioning
system, you may notice clear water
dripping (or even puddling) on the
ground under the passenger side of
the vehicle. This is a normal system
operation characteristic.
• If you operate the air conditioner
excessively, the difference between
the temperature of the outside air and
that of the windshield could cause the
outer surface of the windshield to fog
up, causing loss of visibility. In this
case, set the mode selection button to
the
position and set the fan speed
control knob to the lowest speed
setting.

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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
This filter is installed behind the glove
box. It filters the dust or other pollutants
that enter the vehicle through the
heating and air conditioning system.
We recommend that the climate control
air filter be replaced by an authorized
HYUNDAI dealer according to the
maintenance schedule. If the vehicle is
being driven in severe conditions such
as dusty or rough roads, more frequent
climate control filter inspections and
changes are required.
If the air flow rate suddenly decreases,
we recommend the system be checked
at an authorized HYUNDAI dealer.
i Information
• Replace the filter according to the
Maintenance Schedule.
• If the car is being driven in severe
conditions such as dusty, rough roads,
more frequent climate control air filter
inspections and changes are required.
• When the air flow rate suddenly
decreases, we recommend that the
system be checked by an authorized
HYUNDAI dealer.
Checking the amount of air
conditioner refrigerant and
compressor lubricant
When the amount of refrigerant is low,
the performance of the air conditioning
is reduced. Overfilling also has a bad
influence on the air conditioning system.
Therefore, if abnormal operation is
found, we recommend that the system
be inspected by an authorized HYUNDAI
dealer.
NOTICE
It is important that the correct type and
amount of oil and refrigerant is used.
Otherwise, damage to the compressor
and abnormal system operation may
occur. To prevent damage, the air
conditioning system in your vehicle
should only be serviced by trained and
certified technicians.
WARNING
Vehicles equipped with R-134a
Since the refrigerant is
operated at very high
pressure, the air
conditioning system should
only be serviced by trained
and certified technicians.
All refrigerants should be reclaimed
with proper equipment.
Venting refrigerants directly to the
atmosphere is harmful to individuals
and environment. Failure to heed these
warnings can lead to serious injuries.

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WARNING
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 windshield
could cause the outer surface of the
windshield to fog up, causing loss of
visibility. Set the mode selection to the
position and fan speed control to a
lower speed.
• For maximum defrosting, set the
temperature control to the extreme
right/hot position and the fan speed
control to the highest speed.
• If warm air to the floor is desired while
defrosting or defogging, set the mode
to the floor-defrost position.
• Before driving, clear all snow and ice
from the windshield, rear window,
outside rear view mirrors, and all side
windows.
• Clear all snow and ice from the hood
and air inlet at the buttom of the
windshield.
i Information
If the engine temperature is still cold after
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 windshield
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1. Select desired fan speed.
2. Select desired temperature.
3. Select the
or position.
4. The outside (fresh) air will be selected
automatically. Additionally, the
air conditioning will automatically
operate if the mode is selected to the
or position.
If the air conditioning and outside (fresh)
mode are not selected automatically,
press the corresponding button
manually.
WINDSHIELD DEFROSTING AND DEFOGGING