heating HYUNDAI I20 2021 User Guide

6-60
Convenient features
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.
System maintenance
Climate control air filter
OIK047401LOIK047401L
[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.

6-63
06
Automatic heating and air
conditioning
The Automatic Climate Control System
is controlled by setting the desired
temperature.
OBI3050116OBI3050116
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.

6-64
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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6-67
06
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.

6-69
06
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.

6-70
Convenient features
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.

6-71
06
System maintenance
Climate control air filter
OIK047401LOIK047401L
[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.

6-105
06
Restarting the current playback
On the control panel after the song has
played for 2 seconds, press the [< SEEK]
button.
• You can also push the Up lever on the
steering wheel.
Playing the previous or next song
To play the previous song on the control
panel within the first 2 seconds of the
current song, press the [< SEEK] button.
To play the next song, press the [TRACK >]
button on the control panel.
• If more than 2 seconds of playback
have elapsed, press the [< SEEK]
button on the control panel twice to
play the previous song.
• You can also push the Up/down lever
on the steering wheel.
NOTICE
Press the [MENU/CLOCK] button on
the control panel to display the mode
selection window, turn the [TUNE] knob
to find the desired song and press the
knob to play the file.
Playing repeatedly
On the control panel, press the [1 RPT]
button. The corresponding mode icon
will be displayed on the screen and the
playing song will be repeated.
Playing in random order
On the control panel, press the
[2 SHFL] button. The shuffle play mode is
activated or deactivated each time you
press it. When you activate the shuffle
mode, the corresponding mode icon will
be displayed on the screen. When shuffle
is active, the available songs will be
played randomly.
NOTICE
Depending on the connected Bluetooth
device or mobile phone, repeat &
shuffle order features may not be
supported.
Searching folders
1. On the control panel, press the
[MENU/CLOCK] button.
2. When the option selection window
displays, turn the [TUNE] knob to
select the Folder list and then press
the knob.
3. Navigate to the desired folder in the
Folder list and then press the [TUNE]
knob.
• The first song in the selected folder
will be played.
i Information
• Start the engine of your vehicle before
connecting a USB device to your
system. Starting the engine with a USB
device connected to the system may
damage the USB device.
• Be careful of static electricity when
connecting or disconnecting a USB
device. A static discharge may cause a
system malfunction.
• Be careful not to let your body or
external objects contact the USB port.
Doing so may cause an accident or a
system malfunction.
• Do not connect and disconnect a USB
connector repeatedly in a short time.
Doing so may cause an error in the
device or a system malfunction.
• Do not use a USB device for purposes
other than playing files. Using USB
accessories for charging or heating may
cause poor performance or a system
malfunction.

7-9
07
NOTICE
If the engine does not start within 10
seconds after preheating is completed,
turn the ignition switch once more
to the LOCK position and wait for 10
seconds. Then turn the ignition switch
to the ON position in order to preheat
the engine again.
Starting and stopping the engine for
turbocharger intercooler
1. Do not race or accelerate the engine
immediately after starting the engine.
If the engine is cold, idle for several
seconds before sufficient lubrication is
ensured in the turbo charger unit.
2. After high speed or extended driving
that requires heavy engine load, idle
the engine about one minute before
turning the engine off.
This idle time will allow the
turbocharger to cool prior to shutting
the engine off.
NOTICE
Do not turn off the engine immediately
after it has been subjected to a heavy
load. Doing so may cause severe
damage to the engine or turbo charger
unit.
NOTICE
To prevent damage to the vehicle:
• Do not hold the ignition key in the
START position for more than 10
seconds. Wait 5 to 10 seconds before
trying again.
• Do not turn the ignition switch to
the START position with the engine
running. It may damage the starter.
• If traffic and road conditions permit,
you may put the shift lever in the N
(Neutral) position while the vehicle
is still moving and turn the ignition
switch to the START position in an
attempt to restart the engine.
• Do not push or tow your vehicle to
start the engine.

7-13
07
When the shift lever is not placed in
P (Park) or N (Neutral), the following
popup will be displayed on the cluster.
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i Information
• Do not wait for the engine to warm up
while the vehicle remains stationary.
Start driving at moderate engine speeds.
(Steep accelerating and decelerating
should be avoided.)
• Always start the vehicle with your foot
on the brake pedal. Do not depress the
accelerator while starting the vehicle.
Do not race the engine while warming it
up.
• When you start to drive, move
the shift lever after checking the
RPM(revolutions per minute) is in the
proper range (under 1000 rpm) by
depressing the clutch pedal and brake
pedal.
After releasing the parking brake, take
your foot off the clutch and depress the
accelerator slowly while starting your
vehicle.
Starting the diesel engine
To start the diesel engine when the
engine is cold, it has to be pre-heated
and then it has to be warmed up, before
starting to drive.
Vehicle with Manual transmission:
1. Always carry the smart key with you.
2. Make sure the parking brake is
applied.
3. Make sure the shift lever is in N
(Neutral).
4. Depress the clutch and brake pedal.
5. Press the Engine Start/Stop button.
6. Continue depressing the brake pedal
until the glow indicator light (
)
goes out.
7. When the glow indicator light (
)
goes out, the engine will start.
i Information
If the Engine Start/Stop button is pressed
while the engine is pre-heating, the engine
may start.