2012 Hyundai Sonata air filter

731
Maintenance
2. With the glove box open, remove thestoppers by turning them counter-
clockwise on both sides. 3. Remove the climate control air filter
cover while pressing the lock on the
right of the cover. 4. Replace the climate control air filter.
5. Reassemble in the reverse order of
disassembly.
✽ ✽NOTICEWhen replacing the climate control air
filter install it properly. Otherwise, the
system may produce noise and the effec-
tiveness of the filter may be reduced.
OYF079016
OYF079015
OYF079046

773
Maintenance
EMISSION CONTROL SYSTEMThe emission control system of your
vehicle is covered by a written limited
warranty. Please see the warranty infor-
mation contained in the Owner’s
Handbook & Warranty Information book-
let in your vehicle.
Your vehicle is equipped with an emis-
sion control system to meet all applicable
emission regulations.
There are three emission control sys-
tems, as follows.
(1) Crankcase emission control system
(2) Evaporative emission control system
(3) Exhaust emission control system
In order to assure the proper function of
the emission control systems, it is rec-
ommended that you have your car
inspected and maintained by an author-
ized HYUNDAI dealer in accordance with
the maintenance schedule in this manu-
al.Caution for the Inspection and
Maintenance Test (With Electronic
Stability Control (ESC) system)
 To prevent the vehicle from misfir-
ing during dynamometer testing,
turn the Electronic Stability Control
(ESC) system off by pressing the
ESC switch.
 After dynamometer testing is com- pleted, turn the ESC system back on
by pressing the ESC switch again.
1. Crankcase emission control systemThe positive crankcase ventilation sys-
tem is employed to prevent air pollution
caused by blow-by gases being emitted
from the crankcase. This system supplies
fresh filtered air to the crankcase through
the air intake hose. Inside the crankcase,
the fresh air mixes with blow-by gases,
which then pass through the PCV valve
into the induction system.2. Evaporative emission control(including ORVR: Onboard
Refueling Vapor Recovery)
systemThe Evaporative Emission Control
System is designed to prevent fuel
vapors from escaping into the atmos-
phere.
(The ORVR system is designed to allow
the vapors from the fuel tank to be
loaded into a canister while refueling at
the gas station, preventing the escape of
fuel vapors into the atmosphere.)

I3
Index
California perchlorate notice ··················\
··················\
·····7-76
Capacities (Lubricants) ··················\
··················\
················8-4
CareExterior care ··················\
··················\
··················\
········7-67
Interior care ··················\
··················\
··················\
·········7-71
Tire care··················\
··················\
··················\
···············7-37
Cargo weight ··················\
··················\
··················\
············5-51
Center console storage ··················\
··················\
·············4-105
Central door lock switch··················\
··················\
············4-19
Certification label ··················\
··················\
···············5-49, 8-6
Changing tires ··················\
··················\
··················\
··········6-13
Chains Tire chains ··················\
··················\
··················\
···········5-43
Checking tire inflation pressure··················\
··················\
·7-38
Child restraint system ··················\
··················\
················3-29 Passenger seat belt ··················\
··················\
················3-31
Tether anchor system··················\
··················\
·············3-33
Lower anchor system ··················\
··················\
············3-35
Child-protector rear door lock ··················\
··················\
···4-21
Climate control system (Automatic) ··················\
···········4-97 Air conditioning ··················\
··················\
··················\
4-100
Automatic heating and air conditioning··················\
··4-94
Manual heating and air conditioning ··················\
······4-95
Climate control system (Manual) ··················\
················4-83 Air conditioning ··················\
··················\
··················\
··4-90
Climate control air filter··················\
··················\
········4-92
Heating and air conditioning··················\
··················\
·4-84 Climate control air filter ··················\
··················\
············4-94
Climate control air filter ··················\
··················\
············7-30
Clock (Digital) ··················\
··················\
··················\
·······4-109
Clothes hanger ··················\
··················\
··················\
·······4-109
Combined instrument, see instrument cluster ···············4-50
Compact spare tire ··················\
··················\
··················\
···6-18
Compact spare tire replacement ··················\
··················\
7-42
Compass mirror, see the Electric chromic mirror (ECM)
with homeLink system and compass ··················\
······4-41
Consumer information ··················\
··················\
·················8-8
Coolant ··················\
··················\
··················\
··················\
···7-24
Cooling fluid, see engine coolant ··················\
················7-24
Crankcase emission control system ··················\
·············7-73
Cruise control system ··················\
··················\
················5-31
Cup holder ··················\
··················\
··················\
·············4-107
Curtain air bag ··················\
··················\
··················\
·········3-54
Dashboard, see instrument cluster ··················\
···············4-50
Dashboard illumination, see instrument panel illumination ··················\
··················\
··················\
·········4-51
Daytime running light··················\
··················\
················4-73
Defogging (Windshield) ··················\
··················\
··········4-101
Defogging logic (Windshield) ··················\
··················\
·4-103
Defroster (Rear window) ··················\
··················\
···········4-82
Defrosting (Windshield) ··················\
··················\
··········4-101
Digital clock··················\
··················\
··················\
···········4-109
Dimensions ··················\
··················\
··················\
················8-2C
D

I7
Index
MaintenanceExplanation of scheduled maintenance items ···········7-19
Maintenance services ··················\
··················\
··············7-4
Maintenance under severe usage conditions ·············7-18
Normal maintenance schedule ··················\
··················\
7-8
Owner maintenance··················\
··················\
·················7-5
Scheduled maintenance service ··················\
················7-7
Tire maintenance ··················\
··················\
··················\
·7-42
Maintenance services ··················\
··················\
··················\
·7-4
Manual climate control system··················\
··················\
··4-83 Air conditioning ··················\
··················\
··················\
··4-89
Climate control air filter··················\
··················\
········4-92
Heating and air conditioning··················\
··················\
·4-84
Manual transaxle ··················\
··················\
··················\
······5-11
Memory fuse ··················\
··················\
··················\
············7-52
Mirrors ··················\
··················\
··················\
··················\
···4-41 Day/night rearview mirror ··················\
··················\
····4-41
Electric chromic mirror (ECM) with Homelink systemand compass ··················\
··················\
··················\
······4-41
Inside rearview mirror··················\
··················\
···········4-41
Outside rearview mirror ··················\
··················\
········4-48
Moonroof, see sunroof ··················\
··················\
·····4-32, 4-35
Multi box ··················\
··················\
··················\
···············4-106
Multi fuse ··················\
··················\
··················\
·················7-53\
Neck restraints, see headrest ··················\
················3-7, 3-1\
1
Occupant classification system··················\
··················\
··3-44
Odometer ··················\
··················\
··················\
·················4-54\
Oil (Engine) ··················\
··················\
··················\
·············7-22
Outside rearview mirror··················\
··················\
·············4-48
Overheats ··················\
··················\
··················\
··················\
·6-6
Owner maintenance ··················\
··················\
··················\
···7-5
Paddle shifter ··················\
··················\
··················\
···········5-17
Panorama sunroof ··················\
··················\
··················\
····4-35
Parking brake inspect··················\
··················\
·················7-28\
Parking brake ··················\
··················\
··················\
···········5-22
Passenger's front air bag ··················\
··················\
············3-49
Power brakes··················\
··················\
··················\
············5-21
Power outlet ··················\
··················\
··················\
···········4-108
Power window lock button ··················\
··················\
········4-27
Pre-tensioner seat belt··················\
··················\
················3-23
Push starting··················\
··················\
··················\
···············6-5M
NOP