climate control Hyundai Sonata

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.
OYFH041127N
OYF049128
OYFH041300N

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.
OYF049129N

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.
OYF049130N
OYF049218N
OYFH041252N-1
■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
OYF049222
OYF049133

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

79
Maintenance
NORMAL MAINTENANCE SCHEDULE (CONT.)
37,500 miles (60,000 km) or 30 months
❑Inspect air cleaner filter❑Inspect vacuum hose❑Inspect manual transaxle fluid (if equipped)❑Replace engine oil and filter (2.4 GDI) *
3
(37,500 miles (60,000 km) or 60 months)❑ Add fuel additive *
4
*1Fuel filter & Fuel tank air filter are considered to be maintenance free\
but peri-
odic inspection is recommended for this maintenance schedule depends on
fuel quality. If there are some important safety matters like fuel flow restric-
tion, surging, loss of power, hard starting problem etc, replace the fuel filter
immediately regardless of maintenance schedule and consult an authorized
HYUNDAI dealer for details.
*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.
30,000 miles (48,000 km) or 24 months
❑ 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❑Inspect brake/clutch (if equipped) fluid ❑Inspect fuel filter *
1
❑Inspect fuel lines, fuel hoses and connections❑Inspect fuel tank air filter (if equipped) *
1
❑Inspect parking brake❑Inspect vapor hose and fuel filler cap❑ Replace climate control air filter (for evaporator and blower unit)❑Replace air cleaner filter❑Replace engine oil and filter (2.4 GDI) *
3
(30,000 miles (48,000 km) or 48 months)❑ Add fuel additive *
4

Maintenance10
7
45,000 miles (72,000 km) or 36 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
(45,000 miles (72,000 km) or 72 months)❑Replace spark plugs (iridium coated), 2.0TGDI❑ Add fuel additive *
4
NORMAL MAINTENANCE SCHEDULE (CONT.)
52,500 miles (84,000 km) or 42 months
❑Inspect air cleaner filter❑Inspect vacuum hose❑Replace engine oil and filter (2.4 GDI) *
3
(52,500 miles (84,000 km) or 84 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.

711
Maintenance
60,000 miles (96,000 km) or 48 months
❑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❑Inspect brake/clutch (if equipped) fluid ❑Inspect fuel filter *
1
❑Inspect fuel lines, fuel hoses and connections❑Inspect fuel tank air filter (if equipped) *
1
❑Inspect parking brake❑Inspect vapor hose and fuel filler cap❑Inspect valve clearance *
2
❑Inspect drive belts
(First, 60,000 miles (96,000 km) or 72 months
after every 15,000 miles (24,000 km) or 24 months)❑ Replace climate control air filter (for evaporator and blower unit)❑Replace air cleaner filter❑Replace engine oil and filter (2.4 GDI) *
3
(60,000 miles (96,000 km) or 96 months)
(Continued)
67,500 miles (108,000 km) or 54 months
❑ Inspect air cleaner filter❑Inspect vacuum hose❑Replace engine oil and filter (2.4 GDI) *
3
(67,500 miles (108,000 km) or 108 months)❑ Add fuel additive *
4
NORMAL MAINTENANCE SCHEDULE (CONT.)
*1Fuel filter & Fuel tank air filter are considered to be maintenance free\
but peri-
odic inspection is recommended for this maintenance schedule depends on
fuel quality. If there are some important safety matters like fuel flow restric-
tion, surging, loss of power, hard starting problem etc, replace the fuel filter
immediately regardless of maintenance schedule and consult an authorized
HYUNDAI dealer for details.
*2Inspect for excessive tappet noise and/or engine vibration and adjust if nec-
essary.
*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.(Continued)❑ Replace coolant (First, 60,000 miles (96,000 km) or 60 months
after every 30,000 miles (48,000 km) or 24 months)❑ Add fuel additive *
4

Maintenance12
7NORMAL MAINTENANCE SCHEDULE (CONT.)
75,000 miles (120,000 km) or 60 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❑Inspect manual transaxle fluid (if equipped)❑Inspect drive belts
(First, 60,000 miles (96,000 km) or 72 months
after every 15,000 miles (24,000 km) or 24 months)❑ Replace climate control air filter (for evaporator and blower unit)❑Replace engine oil and filter (2.4 GDI) *
3
(75,000 miles (120,000 km) or 120 months)❑ Add fuel additive *
4
82,500 miles (132,000 km) or 66 months
❑Inspect air cleaner filter❑Inspect vacuum hose❑Replace engine oil and filter (2.4 GDI) *
3
(82,500 miles (132,000 km) or 132 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.