2021 HYUNDAI TUCSON HYBRID Owners Manual

Convenient features
5-108
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 windows
and sunroof closed.
• Use the air conditioning system every
month for a few minutes to ensure
maximum system performance.
• 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
Cabin air filter
OIK047401L[A] : Outside air, [B] : Recirculated air
[C] : Cabin 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 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.

05
5-109
Air Conditioning Performance and
Maintenance at Your HYUNDAI
Dealer
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, 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-1234yf
Since 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
and environment. Failure to heed these
warnings can lead to serious injuries.
ONX4050071
Air Conditioning refrigerant label
You can find out which air conditioning
refrigerant is applied to your vehicle on
the label located inside of the hood.
„„Example
OTMH090024
Each symbol and specification on the
air conditioning refrigerant label is
represented as below:
1.
Classification o

f refrigerant
2.
Amount o

f refrigerant
3.
Classification o

f compressor lubricant
4.
Caution
5.
Flammable re

frigerant
6.
To r

equire registered technician to
service air conditioning system

Convenient features5-110
winDshielD Defr osting AnD Def ogging
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.
Automatic climate control
system
To defog inside windshield
ONX4H050100
„„ Type A „„ Type B
1. Select the desired f
an speed.
2.
Select the desired t
emperature.
3.
Press the de

froster button (
).
4.
The air-conditioning will turn on
accor

ding to the detected ambient
temperature, outside (fresh) air
position and higher fan speed will be
selected automatically.
If the air-conditioning, outside (fresh)
air position 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
5-111
To defrost outside windshield
ONX4H050101
„„ Type A„„ Type B
1. Set fan speed to the highest position.
2.
Set t
emperature to the extreme hot
(HI) position.
3.
Press the de

froster button (
).
4.
The air-conditioning will turn
on accor

ding to the detected
ambient temperature and outside
(fresh) air position will be selected
automatically.
If the
position is selected, lower fan
speed is controlled to higher fan speed.
Auto Defogging System
on Models with Automatic
Temperature Control
Auto defogging reduces the possibility of
fogging up the inside of the windshield
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 14°F (-10°C).
To cancel or set the Auto Defogging
System, keep the front defroster button
pressed for 3 seconds. The “ADS OFF”
symbol will be shown in the climate
display to inform you that the system
is deactivated. To re-activate the auto
defogging system, follow the procedure
mentioned above and the “ADS OFF”
symbol will disappear.
If the battery has been disconnected
or discharged, it resets to the auto
defogging status.
Information
For efficiency, do not select recirculated
air position while the Auto defogging
system is operating.
NOTICE
Do not remove the sensor cover located
on the top of the windshield glass.
Damage to system parts could occur
and may not be covered by your vehicle
warranty.

Convenient features5-112
Rear window defrosterNOTICE
To prevent damage to the rear window
defroster conducting elements bonded
to the inside surface of the rear window,
never use sharp instruments or window
cleaners containing abrasives to clean
the window.
The defroster heats the
window to remove frost, fog
and thin ice from the interior
and exterior of the rear
window, while the engine is
running.
• To activate the rear window defroster,
press the rear window defroster
button located in the center control
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.
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
Engine Start/Stop button is in the OFF
position.
Side view mirror defroster (if
equipped)
If your vehicle is equipped with the side
view mirror defrosters, they will operate
at the same time you turn on the rear
window defroster.

05
5-113
ClImaTe ConTrol addITIonal feaTUres
Auto Defogging System
on Models with Automatic
Temperature Control
ONX4050046
Auto defogging helps reduce the
possibility of fogging up the inside of the
windshield 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 14 °F (-10 °C).
When the Auto Defogging
System operates, the indicator
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) Air conditioning will turn ON.
Step 2) Air intake control will change to Fresh mode.
Step 3) Mode will change to defrost to direct airflow to the windshield.
Step 4) Fan speed will be set to MAX.
If the air conditioning is off or
recirculation mode is manually selected
while Auto Defogging System is ON, the
Auto Defogging System indicator will
blink 3 times to signal that the manual
operation has been canceled.

Convenient features
5-114
Turning the Auto Defogging System
ON or OFF
Climate control system
Press the front windshield defroster
button for 3 seconds when the Engine
Start/Stop button is in the ON position.
When the Auto Defogging System is
turned off, 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
turned on, the ADS OFF symbol will blink
6 times without a signal.
Infotainment system
Auto Defogging System can be turned
on
and o
ff
b
y
selecting ‘Se
tup
→ Vehicle Se

ttings
→ Clima
te
→ De
fog/
Defrost
Op

tions
→ A
uto
De
fog’
fr
om
the inf

otainment system screen.
For detailed information, refer to the
separately supplied infotainment
system manual.
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 Auto Defogging System is
operating, fan speed adjustment,
temperature adjustment, and air intake
control selection are all disabled.
NOTICE
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.
Auto dehumidify (if equipped)
To increase cabin air quality and reduce
windshield misting, recirculation mode
switches off automatically after about 5
to 30 minutes, depending on the outside
temperature, and the air intake will
change to fresh mode.
Turning Auto Dehumidify ON or OFF
Climate control system
To turn the Auto Dehumidify feature
on or off, select Face level (
) mode
and press the air intake control ()
button at least five times within three
seconds. When Auto Dehumidify is
turned on, the air intake control button
indicator will blink 6 times. When turned
off, the indicator will blink 3 times.
Infotainment system
Auto Dehumidify can be turned on and
off
b

y
selecting ‘Se

tup
→ V

ehicle
Se

ttings
→ Clima

te
→ A

utomatic
V

entilation
→ Aut

o Dehumidify’ from the infotainment
system screen.
For detailed information, refer to the
separately supplied infotainment
system manual.

05
5-115
Recirculating air when washer
fluid is used
Recirculation mode automatically
activates to reduce any objectionable
scent of the washer fluid from entering
the cabin when the windshield washer is
used.
When it is shifted to the recirculation
mode, the unpleasant scent may flow
into the vehicle.
However, In cold whether to prevent
the windshield from fogging up, the
recirculation mode may not be selected.
Turning Activate upon Washer Fluid
Use ON or OFF
Climate control system
To turn the Activate upon Washer Fluid
Use feature on or off, select Floor level
(
) mode, and then press the air
intake control () button four times
within two seconds while pressing the
A/C icon.
When Activate upon Washer Fluid Use
ON is turned on, the air intake control
button indicator will blink 6 times. When
turned off, the indicator will blink 3
times.
Infotainment system
Activate upon Washer Fluid Use can be
turned
on and o

ff
b

y
selecting ‘Se
tup
→ Vehicle Se

ttings
→ Clima
te
→ R
ecirculate
Air → A

ctivate
upon W
asher
Fluid U
se
(or In

terlocking washer fluid)’ from the
infotainment system screen.
For detailed information, refer to the
separately supplied infotainment
system manual.
Sunroof inside air recirculation
(if equipped)
When the sunroof is opened, fresh
mode will be automatically selected.
At this time, if you press the air intake
control button, recirculation mode will
be selected but will change back to fresh
mode after 3 minutes. When the sunroof
is closed, the air intake position will
return to the original position that was
selected.
Automatic Controls for the
Driver Based on Climate Control
System Settings
The temperature of the driver’s seat
warmer, air ventilated seat and heated
steering wheel is automatically
controlled depending on the inside and
outside temperature of the vehicle when
the engine is running.
To use these features, it must be
enabled from the Settings menu in the
infotainment system screen. Select:
- Setup → V

ehicle
Se
ttings
→ Sea
t
→ Hea

ted/Ventilated
F
eatures
→ H
eated/
Ventilated
F

eatures
→ A
uto.
Con
trols
That U

se Climate Control Settings
For more details on Auto Comfort
Control, refer to “Seat Warmers” and
“Air ventilation seats” section in chapter
3 and “Heated Steering Wheel” section
in chapter 5.