2023 GENESIS G90 Side

5-132
Convenience Features
Air intake control
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A : Front seat,
B : Rear seat
The air intake control button is used to
select either Fresh mode (outside air) or
Recirculation mode (cabin air).
Recirculation mode
When Recirculation mode
is selected, air from the
passenger compartment will
be recirculated through the
system and heated or cooled
according to the function
selected.
Fresh mode
When Fresh mode is selected,
air enters the vehicle from
outside and is heated or
cooled according to the
function selected.
Information
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mode is recommended. Use Recirculation
mode temporarily only when needed.
Prolonged operation of the heater in
Recirculation mode and without the air
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windshield. In addition, prolonged use of
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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 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
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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.

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Convenience Features
OFF
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A : Front seat control from the front,
B : Rear seat control from the front,
C : Rear seat control from the rear,
D : Front seat control from the rear
Touch the OFF icon or button to turn
the climate control system off. You can
still operate the mode and air intake
buttons as long as the Engine is in the
ON position.

[If OFF is pressed from the front seat,
the front and rear climate control
system will turn off.

[If OFF is pressed from the rear seat,
only the rear climate control system
will turn off.
System Operation
Cooling / Ventilation
1. Select the Face Level mode.
2. Set the air intake control to fresh or
recirculation 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 or
recirculation 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 Front
Defrost
mode.
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[To keep dust or unpleasant fumes
from entering the vehicle through the
ventilation system, temporarily set the
air intake control to the recirculation
mode. Return the control to the to
Fresh mode when the unpleasant air
outside has diminished. This will help
keep the driver alert and comfortable.

[To help prevent the inside of the
windshield from fogging, set the air
intake control to fresh mode and the
fan speed to the desired position, turn
on the air conditioning system, and
adjust the temperature control to the
desired temperature.

5-137
05
Air conditioning
Your Genesis Branded Vehicle air
conditioning system is filled with
R-1234yf refrigerant.
1. Start the vehicle.
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 cooling is desired, set
the temperature control to the lowest
position, then set the fan speed control
to the highest setting.
NOTICE
When using the air conditioning system,
monitor the engine temperature gauge
closely while driving up hills or in heavy
traffic when outside temperatures are
high. Air conditioning system operation
when climbing a steep grade or in
high outside ambient temperatures
can cause engine overheating.
Continue to use the fan, but turn the air
conditioning system off if the engine
temperature gauge indicates engine
overheating.
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.

[Use the air conditioning system
every month only for a few minutes
to ensure maximum system
performance.

[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 to the

position and fan speed control to the
lowest speed.

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Convenience Features
System Maintenance
Cabin air filter
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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 conditioning system.
We recommend that the cabin air filter
be replaced by an authorized retailer of
Genesis Branded products according to
the maintenance schedule. 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 decreases,
have the system inspected at an
authorized retailer of Genesis Branded
products.
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 reduces the
performance of the air conditioning
system.
Therefore, if abnormal operation is
found, have the system inspected by an
authorized retailer of Genesis Branded
products.
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.
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.

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05
WARNING
Vehicles equipped with R-1234yfSince the refrigerant is
mildly flammable and
operated at high pressure,
the air conditioning system
should only be serviced
by trained and certified
technicians. 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 individuals
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warnings can lead to serious injuries.
Air Conditioning refrigerant label
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You can find out which air conditioning
refrigerant is applied to your vehicle on
the label located inside of the hood.
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Each symbols and specification on
the air conditioning refrigerant label is
represented as below:
M Classification of refrigerant
N Amount of refrigerant
O Classification of compressor lubricant
P Caution
Q Flammable refrigerant
R To require registered technician to
service air conditioning system

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Convenience Features
Photo-catalyst Module ( if
equipped )
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Freshens a vehicle’s inner space by
deodorization of lingering odor through
PCM installed in HVAC system.
Your Genesis is equipped with the PCM
which includes a visible ray LED and
photo-catalytic material. The PCM is
activated automatically when the vehicle
is started.
The PCM deodorizes harmful gases
such as NH
3 or HCHO and reduces the
number of floating viruses and bacteria
nearby PCM and eventually air inside
cabin of your vehicle will be refreshed
by continuous air flow through PCM
installed in HVAC system.
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Ex) 2HCHO + 2H2O + 2O2 J 2CO2 + 4H2O

[Photocatalytic radical reaction
J Removal of harmful substances
(VOC gases/microorganisms)
Air cleaning mechanism
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A: Outdoor air,
B: Clean air
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HVACIntakes indoor and outdoor
air into the HVAC, passes it
through the PCM, and then
supplies clean air to the interior
of the vehicle.
PCMThe visible ray LED photo-
catalyst module produces
radicals by photocatalytic
reaction.
RadicalsRadicals generated by the PCM
attach to viruses, bacteria and
harmful gases such as NH
3 and
HCHO and reduce the number
of them in HVAC system.

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Convenience Features
WARNING
Windshield heating
Do not use the
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 button to the
position
and fan speed control knob to a lower
speed.

[For maximum defrost performance,
set the temperature control to the
highest temperature setting 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 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.
To Defog Inside Windshield
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1. Select the desired fan speed.
2. Select the desired temperature.
3. Press the defroster button (
).
4. Fresh mode will be selected
automatically.
Check to make sure the air intake control
is in Fresh mode. If the air intake control
indicator light is illuminated, press the
button once to enable Fresh mode
(indicator light OFF).
If the
position is selected, the fan
speed is automatically increased.
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5-143
05
To Defrost Inside Windshield
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1. Set the fan speed to the highest
(extreme right) position.
2. Set the temperature to the extreme
hot (HI) position.
3. Press the defroster button (
).
4. Fresh mode will be selected
automatically.
Check to make sure the air intake control
is in Fresh mode. If the air intake control
indicator light is illuminated, press the
button once to enable Fresh mode
(indicator light OFF).
If the
position is selected, lower fan
speed is adjusted to a 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. To cancel or reset the
defogging logic, do the following.
1. Press the Engine Start/Stop button to
the ON position.
2. Press the defroster button (
) or
().
3. While pressing the air conditioning
button (A/C), press the air intake
control button at least 5 times within
3 seconds.
The air intake control button indicator
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.