2012 Hyundai Sonata climate control

Features of your vehicle94
4Automatic heating and air condi-
tioningThe automatic climate control system is
controlled by simply setting the desired
temperature.
The Full Automatic Temperature Control
(FATC) system automatically controls the
heating and cooling system as follows;
1. Push the AUTO button. The modes,
fan speeds, air intake and air-condi-
tioning will be controlled automatically
by the temperature setting. 2. Turn the temperature control knob to
set the desired temperature.
If the temperature is set to the lowest
setting, the air conditioning system will
operate continuously.
3. To turn the automatic operation off, press any button except the tempera-
ture control knob. If you press the
mode selection button, air conditioning
button, defrost button or air intake con-
trol button, or the fan speed button, the
selected function will be controlled
manually while other functions operate
automatically.
For your convenience and to improve the
effectiveness of the climate control, use
the AUTO button and set the temperature
to 73°F (23°C).
✽ ✽ NOTICENever place anything over the sensor
located on the instrument panel to
ensure better control of the heating and
cooling system.
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Features of your vehicle
Recirculated air positionWith the recirculated airposition selected, air from
the passenger compart-
ment 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 accord-
ing to the function selected.✽ ✽NOTICEProlonged operation of the heater in the
recirculated air position (without air
conditioning selected) may cause fog-
ging of the windshield and side windows
and the air within the passenger com-
partment may become stale.
In addition, prolonged use of the air con-
ditioning with the recirculated air posi-
tion selected will result in excessively dry
air in the passenger compartment.
Fan speed controlThe fan speed can be set to the desired
speed by pushing the fan speed control
button.
To change the fan speed, press the right
of the button ( ) for higher speed, or
press the left of the button ( ) for lower
speed. To turn the fan speed control off,
press the OFF button.
WARNING
 Continued use of the climate con-
trol 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 serious harm or
death due to a drop in the oxygen
level and/or body temperature.
 Continued use of the climate con- trol system operation in the recir-
culated 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.
■Type A■Type B
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■Type A■Type B

Features of your vehicle100
4Air conditioningPush the A/C button to turn the air condi-
tioning system on (indicator light will illu-
minate).
Push the button again to turn the air con-
ditioning system off.
OFF modePush the OFF button to turn off the air cli-
mate control system. However, you can
still operate the mode and air intake but-
tons as long as the ignition switch is in
the ON position.
The vented air will be at the last set tem-
perature. Adjust the desired vented tem-
perature setting accordingly before
pressing the OFF button.
Climate information screen selec-
tion button (if equipped)To change the screen into the climate
information screen, press the climate
information screen selection button.
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4 101
Features of your vehicle
 For maximum defrosting, set the tem-perature control to the extreme
right/hot position and the fan speed
control to the highest speed.
 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, out-
side rear view mirrors, and all side win-
dows.
 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.
Manual climate control systemTo defog inside windshield1. Select any fan speed except “0” posi- tion.
2. Select desired temperature.
3. Select the or position.
4. The outside (fresh) air will be selected automatically.
If the outside (fresh) air position is not
selected automatically, press the corre-
sponding button manually.
WINDSHIELD DEFROSTING AND DEFOGGING
WARNING
- Windshield heating
Do not use the or position
during cooling operation in
extremely humid weather. The dif-
ference between the temperature of
the outside air and that of the wind-
shield could cause the outer sur-
face 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 knob or button to
a lower speed.
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Features of your vehicle102
4To defrost outside windshield 1. Set the fan speed to the highest
(extreme right) position.
2. Set the temperature to the extreme hot position.
3. Select the position.
4. The outside (fresh) air will be selected automatically.
Automatic climate control systemTo defog inside windshield 1. Select desired fan speed.
2. Select desired temperature.
3. Press the defrost button ( ).
4. The outside (fresh) air position will beselected automatically. If the outside (fresh) air position is not
selected automatically, adjust the corre-
sponding button manually.
If the position is selected, lower fan
speed is adjusted to a higher fan speed.
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■Type A■Type B

Features of your vehicle104
4Manual climate control system1. Turn the ignition switch to the ON posi-
tion.
2. Turn the mode selection knob to the defrost position ( ).
3. Push the air intake control button at least 5 times within 3 seconds.
The indicator light in the air intake control
button will blink 3 times with 0.5 second
of interval. It indicates that the defogging
logic is canceled or returned to the pro-
grammed status.
If the battery has been discharged or dis-
connected, the system resets to the pro-
grammed defogging logic.
Automatic climate control system1. Turn the ignition switch to the ON position.
2. Select the defrost position pressing defrost button ( ).
3. While holding the air conditioning but- ton (A/C) pressed, press the air intake
control button at least 5 times within 3
seconds.
The indicator on the air intake control
button blinks 3 times with 0.5 second of
interval. It indicates that the defogging
logic is canceled or returned to the pro-
grammed status.
If the battery has been discharged or dis-
connected, the system resets
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7
Engine compartment / 7-2
Maintenance services / 7-4
Owner maintenance / 7-5
Scheduled maintenance service / 7-7
Explanation of scheduled maintenance items / 7-19
Engine oil / 7-22
Engine coolant / 7-24
Brake fluid / 7-26
Washer fluid / 7-27
Parking brake / 7-28
Air cleaner / 7-29
Climate control air filter / 7-30
Wiper blades / 7-32
Battery / 7-34
Tires and wheels / 7-37
Fuses / 7-50
Light bulbs / 7-59
Appearance care / 7-67
Emission control system / 7-73
California perchlorate notice / 7-76
Maintenance

Maintenance87NORMAL MAINTENANCE SCHEDULEThe following maintenance services must be performed to ensure good emission control and performance. Keep receipts for all
vehicle emission services to protect your warranty. Where both mileage and time are shown, the frequency of service is deter-
mined by whichever occurs first.
15,000 miles (24,000 km) or 12 months
❑Inspect air cleaner filter❑Inspect vacuum hose❑Inspect air conditioning refrigerant❑Inspect brake hoses and lines❑Inspect drive shafts and boots❑Inspect exhaust pipe and muffler❑Inspect front brake disc/pads, calipers❑Inspect rear brake disc/pads❑Inspect steering gear box, linkage & boots/lower arm ball joint,
upper arm ball joint❑ Inspect suspension mounting bolts❑Replace climate control air filter (for evaporator and blower unit)❑Replace engine oil and filter (2.4 GDI) *
3
(15,000 miles (24,000 km) or 24 months)❑ Add fuel additive *
4
7,500 miles (12,000 km) or 6 months
❑Inspect air cleaner filter❑Inspect vacuum hose❑Replace engine oil and filter (2.4 GDI) *
3
(7,500 miles (12,000 km) or 12 months)❑ Add fuel additive *
4
*3Engine oil (2.0 TGDI) At first, replace at 3,000 miles (5,000 km) or 6 months,
after that, every 5,000 miles (8,000 km) or 6 months.
*4If TOP TIER Detergent Gasoline is not available, one bottle of additive is rec-
ommended. Additives are available from your authorized HYUNDAI dealer
along with information on how to use them. Do not mix other additives.
22,500 miles (36,000 km) or 18 months
❑ Inspect air cleaner filter❑Inspect vacuum hose❑Replace engine oil and filter (2.4 GDI) *
3
(22,500 miles (36,000 km) or 36 months)❑ Add fuel additive *
4