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Convenient features of your vehicle
3
Air conditioning
Your HYUNDAI vehicle air condition-
ing system is filled with R-1234yf
refrigerant.
1. Start the engine.
2. Press the air conditioning button.
3. Set the mode to 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.
When maximum initial cooling is
desired, set the temperature control
to the MAX A/C position, then set the
fan speed control to the highest set-
ting.When using the air conditioning
system, monitor the engine tem-
perature gauge closely while driv-
ing up hills or in heavy traffic
when outside temperatures. Air
conditioning system operation
when climbing a steep grade or in
high outside ambient tempera-
tures can cause engine overheat-
ing. Continue to use the fan, but
turn the air conditioning system
off if the engine temperature
gauge indicates engine overheat-
ing.
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 the
recirculated air to the fresh outside
air position. 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 win-
dows and sunroof closed.
Use the air conditioning system
every month only for a few minutes
to ensure maximum system per-
formance.
If you operate 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 knob or button to
the position and fan speed
control to the lower speed.
NOTICE
![HYUNDAI VELOSTER 2021 Owners Manual 3-112
Convenient features of your vehicle
System Maintenance
Cabin air filter
[A] : Outside air, [B] : Recirculated air
[C] : Climate control air filter, [D] : Blower
[E] : Evaporator core, [F] : Heat HYUNDAI VELOSTER 2021 Owners Manual 3-112
Convenient features of your vehicle
System Maintenance
Cabin air filter
[A] : Outside air, [B] : Recirculated air
[C] : Climate control air filter, [D] : Blower
[E] : Evaporator core, [F] : Heat](/manual-img/35/41165/w960_41165-193.png)
3-112
Convenient features of your vehicle
System Maintenance
Cabin air filter
[A] : Outside air, [B] : Recirculated air
[C] : Climate control air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core
The cabin air filter is installed behind
the glove box. It filters the dust or
other pollutants that enter the vehicle
through the heating and air condi-
tioning system.Have the The cabin air filter replaced
by an authorized HYUNDAI dealer
according to the maintenance sched-
ule. If the vehicle is being driven in
severe conditions such as dusty or
rough roads, more frequent cabin air
filter inspections and changes are
required.
If the air flow rate suddenly decreas-
es, the system should be checked at
an authorized HYUNDAI dealer.
Checking the amount of air con-
ditioner refrigerant and com-
pressor lubricant
When the amount of refrigerant is
low, the performance of the air con-
ditioning is reduced. Overfilling also
reduces the performance of the air
conditioning system.
Therefore, if abnormal operation is
found, we recommend that the sys-
tem be inspected by an authorized
HYUNDAI dealer.
It is important that the correct
type and amount of oil and refrig-
erant is used. Otherwise, damage
to the compressor and abnormal
system operation may occur. To
prevent damage, the air condition-
ing system in your vehicle should
only be serviced by trained and
certifie d technicians.
NOTICEOIK047401L

3-113
Convenient features of your vehicle
Air Conditioning refrigerant label
You can find out which air condition-
ing refrigerant is applied to your vehi-
cle on the label located inside of the
hood.Each symbols and specification on
the
air conditioning refrigerant label is
represented as below:
1. Classification of refrigerant
2. Amount of refrigerant
3. Classification of compressor lubri-
cant
4. Caution
5. Flammable refrigerant
6. To require registered technician to
service air conditioning system
7. Service manual
3
OHYK059001 ■Example
Vehicles equipped with R-1234yf
Since the refrigerant is
mildly flammable and
operated at high pres-
sure, the air condition-
ing system should only
be serviced by trained
and certified techni-
cians. It is important
that the correct type and amount
of oil and refrigerant are used.
All refrigerants should be
reclaimed with proper equipment.
Venting refrigerants directly to the
atmosphere is harmful to individu-
als and environment. Failure to
heed these warnings can lead to
serious injuries.
WARNING
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3-114
Convenient features of your vehicle
For maximum defrost perform-
ance, 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.
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 win-
dow, side view mirrors, and all side
windows.
Clear all snow and ice from the
hood and air inlet in the cowl grill to
improve heater and defroster effi-
ciency and to reduce the probability
of fogging up the inside of the wind-
shield.
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
1. Select any fan speed except "0"
position.
2. Select the desired temperature.
3. Select the or position.
4. Fresh mode will be selected auto-
matically. Additionally, the air condi-
tioning will automatically operate if
the mode is selected to the
position.
Check to make sure the A/C is ON. If
the A/C ON LED is not illuminated,
press the A/C button once to turn the
air conditioner ON.
NOTICE
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Windshield heating
Do not use the or posi-
tion during cooling operation in
extremely humid weather. The
difference between the temper-
ature of the outside air and that
of the windshield could cause
the outer surface of the wind-
shield to fog up, causing loss of
visibility could cause an acci-
dent resulting in serious injury
or death. In this case, set the
mode selection knob or button
to the position and fan
speed control knob or button to
a lower speed.
WARNING
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3-116
Convenient features of your vehicle
Defogging logic
To reduce the probability of fogging
up the inside of the windshield, the
air intake or air conditioning are con-
trolled automatically according to
certain conditions such as or
positions. To cancel or reset the
defogging logic, do the following.
Manual climate control system
1. Turn the ignition switch to the ON
position.
2. Press the defroster button ( ).
3. Press the air intake control button
at least 5 times within 3 seconds.
The LED indicator on the A/C ON
button will blink 3 times to indicate
that the defogging logic has been
disabled.
Repeat the steps again to re-enable
the defogging logic.
If the battery has been discharged or
disconnected, it resets to the defog
logic status.
Automatic climate control system
1. Turn the ignition switch to the ON
position.
2. Press the defroster button ( ).
3. While pressing the air conditioning
button (A/C), press the air intake
control button at least 5 times with-
in 3 seconds.
The Automatic Temperature Control
information screen will blink 3 times
to indicate that the defogging logic
has been disabled.
Repeat the steps again to re-enable
the defogging logic.
If the battery has been discharged or
disconnected, it resets to the defog
logic status.
Auto Defogging System
(Additional Feature with
Automatic Temperature
Control System)
Auto defogging reduces the possibili-
ty of fogging up the inside of the wind-
shield by automatically sensing the
moisture on inside the windshield.
The auto defogging system operates
when the heater or air conditioning is
on.
Information
The auto defogging system may not
operate normally, when the outside
temperature is below 50 °F (-10 °C).
i

3-117
Convenient features of your vehicle
3
When the Auto Defogging
System operates, the indi-
cator 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 air intake control will
change to Fresh mode.
Step 2) The A/C button will turn ON.
Step 3) The mode will be changed to
defrost to direct airflow to the
windshield.
Step 4) The fan speed will be set to
MAX.
If the air conditioning is off or recircu-
lated air position is manually select-
ed while Auto Defogging System is
ON, the Auto Defogging System
Indicator will blink 3 times to signal
that the manual operation has been
canceled.To cancel or reset the
Auto Defogging System
Press the front windshield defroster
button for 3 seconds when the ignition
switch is in the ON position. When the
Auto Defogging System is canceled,
the ADS OFF symbol will blink 3 times
and ADS OFF will be displayed on the
climate control information screen.
When the Auto Defogging System is
reset, the ADS OFF symbol will blink
6 times without a signal.
Information
• When the air conditioning is turned
on by Auto defogging system, if you
try to turn off the air conditioning, the
indicator will blink 3 times and the air
conditioning will not be turned off.
• To maintain the effectiveness and
efficiency of the Auto Defogging
System, do not select Recirculation
mode while the system is operating.
• When the Auto Defogging System is
operating, the fan speed adjustment
knob, the temperature adjustment
knob, and the air intake control but-
ton are all disabled.Do not remove the sensor cover
located on the upper end of the
windshield glass.
Damage to system parts could
occur and may not be covered by
your vehicle warranty.
NOTICE
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3-119
Convenient features of your vehicle
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Automatic Ventilation
When the ignition switch is in the ON
position or when the engine is run-
ning and temperature is below 59°F
(15°C) with the recirculation mode
selected more than five minutes, the
air intake position will automatically
change to fresh mode.
To cancel or reset the Automatic
Ventilation
When the air conditioning system is
on, press the mode selection button
and the recirculation mode button
five times within three seconds.
When the Automatic Ventilation fea-
ture is enabled, the Recirculation
button LED indicator will blink 6
times.
When the Automatic Ventilation fea-
ture is disabled, the Recirculation
button LED indicator will blink 3
times.
Sunroof Inside Air
Recirculation
When the sunroof is opened, outside
(fresh) air will be automatically
selected. At this time, if you press the
air intake control button, recirculated
air position will be selected but will
change back to outside (fresh) air
after 3 minutes. When the sunroof is
closed, the air intake position will
return to the original position that
was selected.

3-124
Convenient features of your vehicle
To prevent damage to the Power
Outlets :
Use the power outlet only when
the engine is running and
remove the accessory plug after
use. Using the accessory plug
for prolonged periods of time
with the engine off could cause
the battery to discharge.
Only use 12V electric acces-
sories which are less than 180 W
in electric capacity.
Adjust the air-conditioner or
heater to the lowest operating
level when using the power outlet.
Close the cover when not in use. Some electronic devices can
cause electronic interference
when plugged into a vehicle's
power outlet. These devices may
cause excessive audio static
and malfunctions in other elec-
tronic systems or devices used
in your vehicle.
Push the plug in as far as it will
go. If good contact is not made,
the plug may overheat and the
fuse may open.
Plug in battery equipped electri-
cal/electronic devices with
reverse current protection. The
current from the battery may
flow into the vehicle's electri-
cal/electronic system and cause
system malfunction.
USB charger
The USB charger is designed to
recharge batteries of small size elec-
trical devices using a USB cable.
The electrical devices can be
recharged when the ignition switch
is in the ACC/ON position.
Insert the USB charger into the USB
port, and re-charge a smart phone or
a tablet PC.
The battery charging state may be
monitored on the electrical device.
Disconnect the USB cable from the
USB port after use.
NOTICE
Avoid electrical shocks. Do not
place your fingers or foreign
objects (pin, etc.) into a power
outlet or touch the power outlet
with a wet hand.
WARNING
OJS048046