2023 HYUNDAI I20 heater
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5-61
05
i Information
2 S H U D W L Q J W K H V \ V W H P S U L P D U L O \ L Q ) U H V K
P R G H L V U H F R P P H Q G H G 8 V H 5 H F L U F X O D W L R Q
mode temporarily only when needed.
Prolonged operation of the heater in
5 H F L U F X O D W L R Q P R G H D Q G Z L W K R X W W K H $ &
2 1 F D Q F D X V H I R J J L Q J R I W K H Z L Q G V F U H H Q
, Q D G G L W L R Q S U R O R Q J H G X V H R I W K H $ &
2 1 L Q 5 H F L U F X O D W L R Q P R G H P D \ U H V X O W L Q
excessively dry, dehumidified air in the
cabin and may promote formation of
musty vent odor due to stagnant air.
WARNING
[ & R Q W L Q X H G X V H R I W K H F O L P D W H F R Q W U R O
system operation in Recirculation
mode for a prolonged period of
time may cause drowsiness to the
occupants in the cabin. This may lead
to loss of vehicle control which may
lead to an accident.
[ & R Q W L Q X H G X V H R I W K H F O L P D W H F R Q W U R O
system operation in Recirculation
P R G H Z L W K W K H $ & 2 ) ) P D \ D O O R Z
humidity to increase inside the cabin.
This may cause condensation to
accumulate on the windscreen and
obscure visibility.
[ ' R Q R W V O H H S L Q \ R X U Y H K L F O H R U
remain parked in your vehicle with
the windows up and either the
heater or the air conditioning ON for
prolonged periods of time. Doing so
may increase the levels of carbon
dioxide in the cabin which may lead
to serious injury or death.
Fan speed control
OBC3050106
Turn the knob to the right to increase
the fan speed and airflow. Turn the knob
to the left to decrease fan speed and
airflow.
Setting the fan speed control knob to
the “0” position turns off the fan.
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 (if equipped)
OBC3050107
Press the A/C button to turn the air
conditioning system on (indicator light
will illuminate). Press the button again to
turn the air conditioning system off.
Page 205 of 649
![HYUNDAI I20 2023 Owners Manual 5-64
Convenient features
System maintenance
Climate control air filter
OIK047401L
[A] : Outside air, [B] : Recirculated air
[C] : Climate control air filter, [D] : Blower
[E] : Evaporator core, [F]](/manual-img/35/56129/w960_56129-204.png "HYUNDAI I20 2023 Owners Manual 5-64
Convenient features
System maintenance
Climate control air filter
OIK047401L
[A] : Outside air, [B] : Recirculated air
[C] : Climate control air filter, [D] : Blower
[E] : Evaporator core, [F]")
5-64
Convenient features
System maintenance
Climate control air filter
OIK047401L
[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 a HYUNDAI
authorised repairer 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 a HYUNDAI authorised repairer.
i Information
Page 212 of 649
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i Information
2 S H U D W L Q J W K H V \ V W H P S U L P D U L O \ L Q ) U H V K
P R G H L V U H F R P P H Q G H G 8 V H 5 H F L U F X O D W L R Q
mode temporarily only when needed.
Prolonged operation of the heater in
5 H F L U F X O D W L R Q P R G H D Q G Z L W K R X W W K H $ &
2 1 F D Q F D X V H I R J J L Q J R I W K H Z L Q G V F U H H Q
, Q D G G L W L R Q S U R O R Q J H G X V H R I W K H $ &
2 1 L Q 5 H F L U F X O D W L R Q P R G H P D \ U H V X O W L Q
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 Recirculation
mode for a prolonged period of
time may cause drowsiness to the
occupants in the cabin. This may lead
to loss of vehicle control which may
lead to an accident.
[ Continued use of the climate control
system operation in Recirculation
P R G H Z L W K W K H $ & 2 ) ) P D \ D O O R Z
humidity to increase inside the cabin.
This may cause condensation to
accumulate on the windscreen and
obscure visibility.
[ Do not sleep in your vehicle or
remain parked in your vehicle with
the windows up and either the
heater or the air conditioning ON for
prolonged periods of time. Doing so
may increase the levels of carbon
dioxide in the cabin which may lead
to serious injury or death.
Fan speed control
OBC3050115R
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.
Page 216 of 649
![HYUNDAI I20 2023 Owners Manual 5-75
05
System maintenance
Climate control air filter
OIK047401L
[A] : Outside air, [B] : Recirculated air
[C] : Climate control air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core
Th](/manual-img/35/56129/w960_56129-215.png "HYUNDAI I20 2023 Owners Manual 5-75
05
System maintenance
Climate control air filter
OIK047401L
[A] : Outside air, [B] : Recirculated air
[C] : Climate control air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core
Th")
5-75
05
System maintenance
Climate control air filter
OIK047401L
[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
Page 218 of 649
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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.
[ ) R U P D [ L P X P G H I U R V W S H U I R U P D Q F H
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.
[ , I Z D U P D L U W R W K H I O R R U L V G H V L U H G
whilst defrosting or defogging, set the
mode to the floor-defrost position.
[ % H I R U H G U L Y L Q J F O H D U D O O V Q R Z D Q G L F H
from the windscreen, rear window,
outside rear view mirrors, and all side
windows.
[ & O H D U D O O V Q R Z D Q G L F H I U R P W K H
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.
i Information
, I W K H H Q J L Q H W H P S H U D W X U H L V V W L O O F R O G D I W H U
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
Page 220 of 649
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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.
Page 567 of 649
9-8
Maintenance
Whilst operating your vehicle:
[ Note any changes in the sound of the
exhaust or any smell of exhaust fumes
in the vehicle.
[ Check for vibrations in the steering
wheel. Notice if there is any increased
steering effort or looseness in the
steering wheel, or change in its
straight-ahead position.
[ Notice if your vehicle constantly turns
slightly or “pulls” to one side when
travelling on smooth, level road.
[ When stopping, listen and check for
unusual sounds, pulling to one side,
increased brake pedal travel or “hard-
to-push” brake pedal.
[ If any slipping or changes in the
operation of your transmission occurs,
check the transmission fluid level.
[ Check the parking brake.
[ Check for fluid leaks under your
vehicle (water dripping from the air
conditioning system during or after
use is normal).
At least monthly:
[ Check coolant level in the engine
coolant reservoir.
[ Check the operation of all exterior
lights, including the stoplights, turn
signals and hazard warning flashers.
[ Check the inflation pressures of all
tyres including the spare for tyres that
are worn, show uneven wear, or are
damaged.
[ Check for loose wheel lug nuts.
At least twice a year:
(i.e., every Spring and Autumn)
[ Check radiator, heater and air
conditioning hoses for leaks or
damage.
[ Check windscreen washer spray and
wiper operation. Clean wiper blades
with a clean cloth dampened with
washer fluid.
[ Check headlight alignment.
[ Check muffler, exhaust pipes, shields
and clamps.
[ Check the seat belts for wear and
function.
At least once a year:
[ Clean body and door drain holes.
[ Lubricate door hinges and bonnet
hinges.
[ Lubricate door and bonnet locks and
latches.
[ Lubricate door rubber weather strips.
[ Lubricate door checker
[ Check the air conditioning system.
[ Inspect and lubricate automatic
transmission linkage and controls.
[ Clean the battery and terminals.
[ Check the brake fluid level.
Page 575 of 649
9-16
Maintenance
The high-pressure cooling system
has a reservoir filled with year-round
antifreeze coolant. The reservoir is filled
at the factory.
Check the antifreeze protection and
coolant concentration level at least once
a year, at the beginning of the winter
season, and before travelling to a colder
climate.
NOTICE
[ : K H Q W K H H Q J L Q H R Y H U K H D W V I U R P
low engine coolant, suddenly adding
engine coolant may cause cracks
in the engine. To prevent damage,
add engine coolant slowly in small
quantities.
[ ' R Q R W G U L Y H Z L W K Q R H Q J L Q H F R R O D Q W
It may cause water pump failure and
engine seizure, etc.
Checking the coolant level
OBC3090014
„Type A
„Type B
OBC3090061
Check the condition and connections
of all cooling system hoses and
heater hoses. Replace any swollen or
deteriorated hoses.
The coolant level should be filled
between [F (Full)] and [L (Low)] marked
on the side of the coolant reservoir when
the engine is cool.
If the coolant level is low, add enough
distilled (deionized) water.
Bring the level to [F(Full)], but do
not overfill. If frequent additions are
required, we recommend that the
system be inspected by a HYUNDAI
authorised repairer.
ENGINE COOLANT