2018 Hyundai Sonata Plug-in Hybrid Owner's Manual

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Convenient features of your vehicle
Temperature control
Turn the temperature control knob to
set the desired temperature.
Adjusting the driver and passenger
side temperature equally
Press the “SYNC” button to adjustthe driver and passenger side tem-
perature equally.
The passenger side temperature
will be set to the same temperature
as the driver side temperature.
Turn the driver side temperature control knob. The driver and pas-
senger side temperature will be
adjusted equally.
Adjusting the driver and passenger
side temperature individually
Press the “SYNC” button again toadjust the driver and passenger
side temperature individually. The
illumination of button turns off.
Operate the driver side tempera- ture control knob to adjust the driv-
er side temperature.
Operate the passenger side tem- perature control knob to adjust the
passenger side temperature.
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Convenient features of your vehicle
3
Temperature conversion
If the battery has been discharged or
disconnected, the temperature mode
display will reset to Centigrade.
You can switch the temperature mode
between Centigrade to Fahrenheit as
follows;
- Automatic climate control system
While pressing the OFF button,
press the AUTO button for 3 seconds
or more. The display will change from
Centigrade to Fahrenheit, or from
Fahrenheit to Centigrade.
- “User setting mode” in the cluster :You can change the temperature
unit in the “Other features -
Temperature unit”
Air intake control
This is used to select the outside
(fresh) air position or recirculated air
position.
To change the air intake control posi-
tion, push the control button.
Recirculated air position
With the recirculated airposition selected, air
from the passenger
compartment will be
drawn through the heat-
ing 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.
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■ Type A
■Type B■Type A
■ Type B

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Convenient features of your vehicle
Information
Prolonged operation of the heater in
the recirculated air position (without
air conditioning selected) may cause
fogging of the windshield and side win-
dows and the air within the passenger
compartment may become stale.
In addition, prolonged use of the air
conditioning with the recirculated air
position selected will result in exces-
sively dry air in the passenger com-
partment.
Fan speed control
The fan speed can be set to the
desired speed by pushing the fan
speed control button.
The higher the fan speed is, the
more air is delivered.
Pressing the OFF button turns off the
fan.
Operating the fan speed when the
Engine Start/Stop button is in the
ON position could cause the bat-
tery to discharge. Operate the fan
speed when hybrid system is run-
ning.
NOTICE
i
Continued climate control
system operation in the recir-
culated air position may allow
humidity to increase inside
the vehicle which may fog the
glass and obscure visibility.
Do not sleep in a vehicle with
the air conditioning or heating
system on. It may cause seri-
ous harm or death due to a
drop in the oxygen level
and/or body temperature.
Continued climate control sys-
tem operation in the recirculat-
ed air position can cause
drowsiness or sleepiness, and
loss of vehicle control. Set the
air intake control to the outside
(fresh) air position as much as
possible while driving.
WARNING
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Convenient features of your vehicle
3
Driver Only
If you press the DRIVER ONLY but-
ton( ) and the indicator light illumi-
nates, cold air mostly blows in the direc-
tion of the driver’s seat. However, some
of the cold air may come out of other
seats’ ducts to keep indoor air pleasant.
If you use the button with no passen-
ger in the front passenger seat, ener-
gy consumption will be reduced.
DRIVER ONLY button will be turned
off under the following conditions:
1) Defrost on
2) SYNC on
3) Adjusted front passenger seattemperature
4) DRIVER ONLY button re-push
Air conditioning
Push the A/C button to turn the air
conditioning system on (indicator
light will illuminate).
Push the button again to turn the air
conditioning system off.
OFF mode
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 Engine Start/Stop button is in
the ON position.
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Convenient features of your vehicle
Economy air conditioning button (ECON)
If you push the ECON button while
the air conditioning system is work-
ing, the air conditioning system will
work less and may improve fuel effi-
ciency.
If you want maximum air conditioning
turn the ECON system off by push-
ing the ECON button.
System operation
Ventilation
1. Set the mode to the position.
2. Set the air intake control to the
outside (fresh) air position.
3. Set the temperature control to the desired position.
4. Set the fan speed control to the desired speed.
Heating
1. Set the mode to the position.
2. Set the air intake control to theoutside (fresh) air position.
3. Set the temperature control to the desired position.
4. Set the fan speed control to the desired speed.
5. If dehumidified heating is desired, turn the air conditioning system on.
If the windshield fogs up, set the mode to the or position.
Operation Tips
To keep dust or unpleasant fumesfrom entering the vehicle through
the ventilation system, temporarily
set the air intake control to the
recirculated air position. Be sure to
return the control to the fresh air
position when the irritation has
passed to keep fresh air in the
vehicle. This will help keep the driv-
er alert and comfortable.
Air for the heating/cooling system is drawn in through the grilles just
ahead of the windshield. Care
should be taken that these are not
blocked by leaves, snow, ice or
other obstructions.
To prevent interior fog on the wind- shield, set the air intake control to
the fresh air position and fan speed
to the desired position, turn on the
air conditioning system, and adjust
the temperature control to desired
temperature.
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Convenient features of your vehicle
3
Air conditioning
HYUNDAI Air Conditioning Systems
are filled with R-134a refrigerant.
1. Start hybrid system. Push the airconditioning button.
2. Set the mode to the position.
3. Set the air intake control to the out- side air or recirculated air position.
4. Adjust the fan speed control and temperature control to maintain
maximum comfort.
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 sal-
vaged vehicle and new replace-
ment MAC evaporators shall be
certified (and labeled) as meet-
ing SAE Standard J2842.Information
• When using the air conditioning sys-tem, monitor the temperature gauge
closely while driving up hills or in
heavy traffic when outside tempera-
tures are high. Air conditioning sys-
tem operation may cause engine
overheating. Continue to use the
blower fan but turn the air condi-
tioning 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 elec-
trical equipment, air conditioning
should only be used with the win-
dows closed.
Air conditioning system operation
tips
If the vehicle has been parked indirect sunlight during hot weather,
open the windows for a short time
to let the hot air inside the vehicle
escape.
Use air conditioning to reduce humidity and moisture inside the
vehicle on rainy or humid days.
During air conditioning system operation, you may occasionally
notice a slight change in engine
speed as the air conditioning com-
pressor cycles. This is a normal
system operation characteristic.
Use the air conditioning system every month only for a few minutes
to ensure maximum system per-
formance.
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 sys-
tem operation characteristic.
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NOTICE

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Convenient features of your vehicle
Operating the air conditioning sys- tem in the recirculated air position
provides maximum cooling, how-
ever, continual operation in this
mode may cause the air inside the
vehicle to become stale.
During cooling operation, you may occasionally notice a misty air flow
because of rapid cooling and
humid air intake. This is a normal
system operation characteristic.
System maintenance
Climate control air filter
The climate control air filter installed
behind the glove box filters the dust
or other pollutants that come into the
vehicle from the outside through the
heating and air conditioning system.
If dust or other pollutants accumulate
in the filter over a period of time, the
air flow from the air vents may
decrease, resulting in moisture accu-
mulation on the inside of the wind-
shield even when the outside (fresh)
air position is selected. If this hap-
pens, we recommend that the cli-
mate control air filter be replaced by
an authorized HYUNDAI dealer.
Information
• Replace the filter according to theMaintenance Schedule.
If the car is being driven in severe
conditions such as dusty, rough
roads, more frequent climate con-
trol 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.
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1LDA5047
Outside air
Recirculatedair
Climate control air filter Blower
Evaporatorcore Heater core

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Convenient features of your vehicle
3
Checking the amount of air conditioner refrigerant andcompressor lubricant
When the amount of refrigerant is
low, the performance of the air con-
ditioning is reduced. Overfilling also
has a bad influence on the air condi-
tioning system.
Therefore, if abnormal operation is
found, we recommend that the sys-
tem be inspected by an authorized
HYUNDAI dealer.
Air Conditioning refrigerant label
The actual Air Conditioning refrigerant
label in the vehicle may differ from the
illustration.
The symbols and specifications on
the label refer to the following:
1. Classification of refrigerant
2. Amount of refrigerant
3. Classification of Compressor lubri-
cant
Refer to chapter 8 for more detail
location of the air conditioning refrig-
erant label.
Because the refriger-
ant is at very high
pressure, the air con-
ditioning system
should only be serv-
iced by trained and certified
technicians. It is important that
the correct type and amount of
oil and refrigerant is used.
Otherwise, it may cause damage
to the vehicle and personal injury.
WARNING
POE
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■ Example