climate control Hyundai Sonata

Features of your vehicle
78
4
Automatic climate control system D250201AFD
To defog inside windshield
1. Select desired fan speed.
2. Select desired temperature.
3. Press the defrost button ( ).
4. The air-conditioning will be turned on
according to the detected ambient
temperature, outside (fresh) air posi-
tion 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 corre-
sponding button or knob manually.
If the position is selected, lower fan
speed is controlled to higher fan speed. D250202AFD
To defrost outside windshield
1. Set fan speed to the highest position.
2. Set temperature to the extreme hot
(HI) position.
3. Press the defrost button ( ).
4. The air-conditioning will be turned on according 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. D250300AUN
Defogging logic
To reduce the probability of fogging up
the inside of the windshield, the air intakeor air conditioning are controlled auto-
matically according to certain conditions
such as or position. To cancel or
return the defogging logic, do the follow-
ings.
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479
Features of your vehicle
D250301AFD
Manual climate control system
1. 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 sec-
onds.
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, it is reset to the defog logic
status. D250302AUN
Automatic climate control system
1. Turn the ignition switch to the ON posi-
tion.
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 A/C display blinks 3 times with 0.5
second of interval. It indicates that the
defogging logic is canceled or returned to
the programmed status.
If the battery has been discharged or dis-
connected, it is reset to the defog logic
status.
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7
Engine compartment / 7-2 Maintenance services / 7-4
Owner maintenance / 7-6Scheduled maintenance service / 7-8Explanation of scheduled maintenance items / 7-21Engine oil / 7-24Engine coolant / 7-25Brake and clutch fluid / 7-28
Power steering fluid / 7-29Automatic transaxle fluid / 7-30
Washer fluid / 7-32Parking brake / 7-32
Fuel filter / 7-33
Air cleaner / 7-34
Climate control air filter / 7-36
Wiper blades / 7-38 Battery / 7-40
Tyres and wheels / 7-43Fuses / 7-53Light bulbs / 7-62
Appearance care / 7-70
Emission control system / 7-76
Maintenance

Maintenance
12
7
NORMAL MAINTENANCE SCHEDULE - PETROL ENGINE (CONT.)
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.
Number of months or driving distance, whichever comes first
Months 12 24 36 48 60 72 84 96
Km×1,000 15 30 45 60 75 90 105 120
Steering gear rack, linkage and boots I I I I I I I I
Power steering pump, belt and hoses I I I I I I I I
Driveshaft and boots I I I I
Tyre (pressure & tread wear) I I I I I I I I
Front suspension ball joints I I I I I I I I
Bolt and nuts on chassis and body I I I I I I I I
Air conditioner refrigerant (if equipped) I I I I I I I I
Air conditioner compressor (if equipped) I I I I I I I I
Climate control air filter (if equipped) R R R R R R R R
Manual transaxle fluid (if equipped) I I I I I I I I
Automatic transaxle fluid (if equipped)
III IIRI I
MAINTENANCE INTERVALS
MAINTENANCE ITEM

Maintenance
14
7
Severe driving conditions
A : Repeated short distance driving
B : Extensive idling
C : Driving in dusty, rough roads
D : Driving in areas using salt or other corrosive
materials
E : Driving in sandy areas
F : More than 50 % driving in heavy city traffic during hot weather above 32°C (90°F) G : Driving in mountainous areas
H : Towing a trailer or using a camper, or roof rack
I : Driving for patrol car, taxi, commercial car or vehicle tow-
ing
J : Driving in very cold weather
K : Driving over 170 km/h
L : Frequently driving in stop-and-go conditions
Front suspension ball joints I C, D, E, F, G
Disc brakes and pads, calipers and rotors I C, D, E, G, H
Drum brakes and linings (if equipped) I C, D, E, G, H
Parking brake I C, D, G, H
Driveshaft and boots I C, D, E, F, G, H, I
Climate control air filter (if equipped) R C, E
MAINTENANCE ITEMMaintenance
operation Maintenance intervals
Driving condition
Inspect more frequently
depending on the condition
Inspect more frequently
depending on the condition
Inspect more frequently
depending on the condition
Inspect more frequently
depending on the condition
Inspect more frequently
depending on the condition
Replace more frequently
depending on the condition

Maintenance
18
7
NORMAL MAINTENANCE SCHEDULE - DIESEL ENGINE (CONT.)
Number of months or driving distance, whichever comes first
Months 12 24 36 48 60 72 84 96 Km×1,000
15 30 45 60 75 90 105 120
Steering gear rack, linkage and boots I I I I I I I I
Power steering pump, belt and hoses I I I I I I I I
Drive shaft and boots I I I I I I I I
Tyre (pressure & tread wear) I I I I I I I I
Front suspension ball joints I I I I I I I I
Bolt and nuts on chassis and body I I I I I I I I
Air conditioner refrigerant (if equipped) I I I I I I I I
Air conditioner compressor (if equipped) I I I I I I I I
Climate control air filter (if equipped)RRR RRRRR
Manual transaxle fluid (if equipped) I I I I I I I I
Automatic transaxle fluid (if equipped) I I I I I R I I
MAINTENANCE INTERVALS
MAINTENANCE ITEM
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.

Maintenance
20
7
Severe driving conditions
A : Repeated short distance driving
B : Extensive idling
C : Driving in dusty, rough roads
D : Driving in areas using salt or other corrosive
materials or in very cold weather
E : Driving in sandy areas
F : More than 50 % driving in heavy city traffic during hot weather above 32 °C (90 °F) G : Driving in mountainous areas.
H : Towing a trailer
I : Driving for patrol car, taxi, commercial car or vehicle tow-
ing
J : Driving in very cold weather
K : Driving over 170 km/h
L : Frequently driving in stop-and-go conditions
Front suspension ball joints I C, D, E, F, G
Disc brakes and pads, calipers and rotors I C, D, E, G, H
Parking brake I C, D, G, H
Drive shaft and boots I C, D, E, F, G, H, I
Climate control air filter (if equipped) R C, E
MAINTENANCE ITEMMaintenance
operation Maintenance intervals
Driving condition
Inspect more frequently
depending on the condition
Inspect more frequently
depending on the condition
Inspect more frequently
depending on the condition
Inspect more frequently
depending on the condition
Inspect more frequently
depending on the condition

Maintenance
36
7
CLIMATE CONTROL AIR FILTER (IF EQUIPPED)
G170100AFD Filter inspection
If the vehicle is operated in the severely air-polluted cities or on dusty rough
roads for a long period, it should beinspected more frequently and replaced
earlier. When you, the owner, replace the
climate control air filter, replace it per-
forming the following procedure, and be
careful to avoid damaging other compo-
nents. Replace the filter according to the main-
tenance Schedule. G170200ANF Filter replacement
1. Open the glove box and remove the
support rod. 2. With the glove box open, remove the
stoppers on both sides to allow the
glove box hang freely on the hinges.
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737
Maintenance
3. Remove the climate control air filtercase pulling out the cover. 4. Replace the climate control air filter.
5. Reassemble in the reverse order of
disassembly.
✽✽ NOTICE
When replacing the climate control air
filter install it as it was installed.
Otherwise, the system may producenoise and the effectiveness of the filter
may be reduced.
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Maintenance
42
7
G130300AUN Reset items
Items should be reset after the battery
has been discharged or the battery hasbeen disconnected.
Auto up/down window (See section 4)
Sunroof (See section 4)
Trip computer (See section 4)
Climate control system
(See section 4)
Clock (See section 4)
Audio (See section 4)(Continued)
Disconnect the battery charger in the following order.
1. Turn off the battery charger main switch.
2. Unhook the negative clamp from the negative battery terminal.
3. Unhook the positive clamp from the positive battery terminal.
Before performing maintenance or recharging the battery, turn off all accessories and stop the
engine.
The negative battery cable must be removed first and installed
last when the battery is discon-nected.