2023 HYUNDAI SONATA climate control

5-105
05
1. Fan speed control knob
2. Temperature control knob
3. Mode selection buttons
4. Front windshield defroster button 5. Rear window defroster button
6. A/C (Air conditioning) button
7.
Air intake control button
8. Max A/C selection button
mAnUAl climATe conTrol SySTem (if eQUippeD)
„„Type A
ODN8A059100
„„Type B
ODN8A059101

Convenience Features
5-110
Information
Using the system primarily in Fresh mode
and Recirculation mode only when needed
is recommended for best results.
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.
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
mode with the A/C OFF may allow
humidity to increase inside the
cabin. This may cause condensation
to accumulate on the windshield 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
ODN8A059113
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
ODN8059114
Push the A/C button to turn the system
on (indicator light will illuminate) and off.

5-114
Convenience Features
1. Driver’s temperature control knob
2. Passenger’s temperature control knob
3. AUTO (automatic control) button
4. SYNC button
5. OFF button
6. Front windshield defroster button 7.
Air conditioning button
8. Air intake control button
9. Rear window defroster button
10. Fan speed control toggle switch
11. Mode selection toggle switch
12. Climate control information screen
AUTomATic climATe conTrol SySTem (if eQUippeD)
ODN8059102L

Convenience Features
5-120
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 → Other → Temperature Unit.
The temperature unit on both the cluster
LCD display and the climate control
screen will change.
Air intake control
This is used to select the outside (fresh)
air position or recirculated air position.
To change the air intake control position,
push the control button.
Recirculated air position
With the recirculated air
position selected, air from the
passenger compartment will
be drawn through the heating
system and heated or cooled
according to the function
selected.
Outside (fresh) air position
With the outside (fresh) air
position selected, air enters
the vehicle from outside and
is heated or cooled according
to the function selected.
Information
Using the system primarily in Fresh mode
and Recirculation mode only when needed
is recommended for best results.
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.
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
mode with the A/C OFF may allow
humidity to increase inside the
cabin. This may cause condensation
to accumulate on the windshield 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.

05
5-121
Fan speed control
ODN8H059319
The fan speed can be set to the desired
speed by using the fan speed control
toggle switch.
More air is delivered with higher fan speeds.
Pressing the OFF button turns off the fan.
Information
For better sound quality, fan speed may
automatically slow down for a couple of minutes when you activate voice
recognition or hands free.
NOTICE
Operating the fan when the ignition
switch is in the ON position could cause
the battery to discharge. Operate the
fan when the engine is running. Air conditioning
ODN8059121
Push the A/C button to manually turn
the air conditioning system on (indicator
light will illuminate).
Push the button again to turn the air
conditioning system off. OFF mode
ODN8059123
Push the OFF button of the front to
turn off the air climate control system.
However, you can still operate the mode
and air intake buttons as long as the
ignition switch is in the ON position.

05
5-125
WinDshielD DeFrosting AnD DeFogging
WARNING
Windshield 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 windshield could cause the
outer surface of the windshield to fog
up, causing loss of visibility could cause
an accident 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. • For maximum defrost performance,
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 window,
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
efficiency and to reduce the
probability of fogging up the inside of the windshield.
NOTICE
If you start the vehicle when the
weather is cold, more adequate way to
heat the cabin is described below.
1. Turn off or lower the blower, right
after engine starting, because
engine temperature is still low and
the air flow is cold.
2. After few minutes of engine warm up, turn the blower to low to medium
speed and set the temperature
control to Hot.
Manual Climate Control System
To defog inside windshield
ODN8A059125
[A] : Type A, [B] : Type B
1. Select any fan speed except “0” position.
2. Select desired temperature.
3. Select the
or position.
4. Fresh mode 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 fresh mode
are not selected automatically, press the
corresponding button manually.

Convenience Features
5-126
To defrost outside windshield
ODN8A059126
[A] : Type A, [B] : Type B
1. Set the fan speed to the highest setting (knob rotated all the way to
the right).
2. Set the temperature control to the highest temperature setting.
3. Select the
position.
4. Fresh mode air and air conditioning (if equipped) will be selected
automatically.
Automatic Climate Control
System
To defog inside windshield
ODN8059124
1. Select desired fan speed.
2. Select desired temperature.
3. Press the defroster button (
).
4. The air-conditioning will turn on according to the detected ambient
temperature, fresh mode and
higher fan speed will be selected
automatically.
If the air-conditioning, fresh mode
and higher fan speed are not selected
automatically, adjust the corresponding
button or knob manually. If the
position is selected, lower fan
speed is controlled to higher fan speed.

05
5-127
To defrost outside windshield
ODN8059127
1. Set fan 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 fan
speed is controlled to higher fan speed.
Defogging Logic
To reduce the probability of fogging
up the inside of the windshield, the air
intake or air conditioning are controlled
automatically according to certain conditions such as
or position.
To cancel or return the defogging logic,
do the following.
Manual climate control system
1. Turn the ignition switch to the ON position.
2. Select defroster mode (
).
3. Press the air intake control button at least 5 times within 3 seconds. The
process should be completed within
10 seconds after the defroster mode (
) is selected.
The LED indicator on the air intake
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 within 3 seconds.
The automatic climate 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.