engine HYUNDAI I20 2020 Repair Manual

6-48
Convenient features
Front door lamp ():
The front or rear
room lamps come on when the front
or rear doors are opened if the engine
is running or not. When doors are
unlocked by the remote key or smart
key, the front and rear lamps come on
for approximately 30 seconds as long as
any door is not opened. The front and
rear room lamps go out gradually after
approximately 30 seconds if the door is
closed. However, if the ignition switch
is in the ON position or all doors are
locked, the front and rear lamps will turn
off. If a door is opened with the ignition
switch in the ACC position or the OFF
position, the front and rear lamps stay
on for about 20 minutes.
Front room lamp
() : Press the button to turn ON the
room lamp for the front/rear
seats.
(
) : Press the button to turn OFF the
room lamp for the front/rear
seats.
Rear lamps
OAH2048032OAH2048032
„„Type AType A
• (1) : In the OFF position, the light stays
off at all times even when a door is
opened.
• (2): In the DOOR position, the light
comes on when any door is opened
regardless of the ignition switch
position.
When doors are unlocked by the
transmitter, the light comes on for
approximately 30 seconds as long
as any door is not opened. The light
goes out gradually after approximately
30 seconds if the door is closed.
However, if the ignition switch is ON
or all doors are locked, the light will go
out immediately.
If a door is opened with the ignition
switch in the ACC or LOCK position,
the light stays on for about 20
minutes.
However, if a door is opened with the
ignition switch in the ON position, the
light stays on continuously.
• (3) : In the ON position, the light stays
on at all times.
NOTICE
Do not leave the lamp switches on for
an extended period of time when the
engine is turned off.

6-54
Convenient features
Heating and air conditioning
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. Set the air intake control to the outside (fresh) air or recirculated air position.
5. Set the fan speed control to the desired speed.
6. If air conditioning is desired, turn the air conditioning system (if equipped) on.
Mode selection
(if equipped)(if equipped)(if equipped)(if equipped)
OBI3050101OBI3050101

6-59
06
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.
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.

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.

6-64
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
OBI3050101OBI3050101

6-68
Convenient features
Fan speed control
OBI3050107OBI3050107
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
OBI3050106OBI3050106
Push the A/C button to manually turn
the system on (indicator light will
illuminate) and off.
OFF mode
OBI3050117OBI3050117
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.

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.

6-72
Convenient features
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
OBI3050111OBI3050111
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

6-76
Convenient features
Rear window defroster
OBC3050122TUOBC3050122TU
„„Manual climate control systemManual climate control system
„„Automatic climate control systemAutomatic climate control system
OBI3050110OBI3050110
The defroster heats the window to
remove frost, fog and thin ice from the
interior and exterior of the rear window,
while engine is running.
• To activate the rear window defroster,
press the rear window defroster
button located in the center facia
switch panel. The indicator on the rear
window defroster button illuminates
when the defroster is ON.
• To turn off the defroster, press the rear
window defroster button again.
i Information
• If there is heavy accumulation of snow
on the rear window, brush it off before
operating the rear defroster.
• The rear window defroster
automatically turns off after
approximately 20 minutes or when the
ignition switch is in the LOCK/OFF
position.