2012 Hyundai Sonata check engine light

75
Maintenance
Whilst operating your vehicle:
Note any changes in the sound of theexhaust or any smell of exhaust fumes
in the vehicle.
Check for vibrations in the steering wheel. Notice any increased steering
effort or looseness in the steering
wheel, or change in its straight-aheadposition.
Notice if your vehicle constantly turns slightly or “pulls” to one side when trav-
elling on smooth, level road.
When stopping, listen and check for unusual sounds, pulling to one side,
increased brake pedal travel or “hard-
to-push” brake pedal.
If any slipping or changes in the oper- ation of your transaxle occurs, check
the transaxle fluid level.
Check automatic transaxle P (Park) function.
Check parking brake.
Check for fluid leaks under your vehicle (water dripping from the air condition-
ing system during or after use is nor-mal).
At least monthly:
Check coolant level in the enginecoolant reservoir.
Check the operation of all exterior lights, including the stoplights, turn sig-
nals and hazard warning flashers.
Check the inflation pressures of all tyres including the spare.
At least twice a year
(i.e., every Spring and Fall):
Check radiator, heater and air condi- tioning hoses for leaks or damage.
Check windscreen washer spray and wiper operation. Clean wiper blades
with clean cloth dampened with wash-er fluid.
Check headlight alignment.
Check muffler, exhaust pipes, shields and clamps.
Check the lap/shoulder belts for wear and function.
Check for worn tyres and loose wheel nuts.

Maintenance
44
7
FUSES
A vehicle’s electrical system is protected
from electrical overload damage by
fuses. This vehicle has 2 fuse panels, one locat-
ed in the driver’s side panel bolster,
another is in the engine compartment.
If any of your vehicle’s lights, acces-
sories, or controls do not work, check the
appropriate circuit fuse. If a fuse has
blown, the element inside the fuse will bemelted.
If the electrical system does not work,
first check the driver’s side fuse panel.
Always replace a blown fuse with one of
the same rating.
If the replacement fuse blows, this indi-
cates an electrical problem. Avoid using
the system involved and immediately
consult an authorised HYUNDAI dealer.
Three kinds of fuses are used: blade type
for lower amperage rating, cartridge type,
and multi fuse for higher amperage rat- ings.
WARNING - Fuse replace-
ment
Never replace a fuse with any- thing but another fuse of the same rating.
A higher capacity fuse could cause damage and possibly a
fire.
Never install a wire or aluminum foil instead of the proper fuse -
even as a temporary repair. It may
cause extensive wiring damage
and a possible fire.
CAUTION
Do not use a screwdriver or any
other metal object to remove fuses because it may cause a short circuit
and damage the system.
OBK079042
Normal
Normal
Blade type
Cartridge type
Multi fuse Blown
Blown
Normal Blown

745
Maintenance
Instrument panel fuse replace- ment
1. Turn the ignition switch and all otherswitches off.
2. Open the fuse panel cover. 3. Pull the suspected fuse straight out.
Use the removal tool provided in the
engine compartment fuse panel.
4. Check the removed fuse; replace it if it is blown.
5. Push in a new fuse of the same rating, and make sure it fits tightly in the clips.
If it fits loosely, consult an authorised
HYUNDAI dealer.
If you do not have a spare, use a fuse of the same rating from a circuit you may
not need for operating the vehicle, such as the cigarette lighter fuse.
If the headlights or other electrical com-
ponents do not work and the fuses are
OK, check the fuse panel in the engine
compartment. If a fuse is blown, it mustbe replaced.
OYF079020ROYF079021

Maintenance
46
7
Memory fuse
Your vehicle is equipped with a memory
fuse to prevent battery discharge if your
vehicle is parked without being operated
for prolonged periods. Use the following
procedures before parking the vehicle for
prolonged periods.
1. Turn off the engine.
2. Turn off the headlights and tail lights.
3. Open the driver’s side panel cover and
pull up the memory fuse.
✽✽ NOTICE
 If the memory fuse is pulled up from the fuse panel, the warning chime,
audio, clock and interior lamps, etc.,
will not operate. Some items must be
reset after replacement. Refer to
“Battery” in this section.
 Even though the memory fuse is
pulled up, the battery can still be dis-
charged by operation of the head-
lights or other electrical devices.
Engine compartment fuse replacement
1. Turn the ignition switch and all other switches off.
2. Remove the fuse panel cover by pressing the tab and pulling up.
3. Check the removed fuse; replace it if it is blown. To remove or insert the fuse, use the fuse puller in the engine com-
partment fuse panel.
4. Push in a new fuse of the same rating, and make sure it fits tightly in the clips.
If it fits loosely, consult an authorised
HYUNDAI dealer.
OYF079022OYF079023

I3
Index
Capacities (Lubricants) ....................................................8-4 Care
Exterior care ..............................................................7-62
Interior care ..............................................................7-67
Tyre care ....................................................................7-34
Cargo weight ..................................................................5-58
Central door lock switch ................................................4-17
Centre console storage ..................................................4-100
Changing tyres ..................................................................6-9Chains Tyre chains ................................................................5-47
Checking tyre inflation pressure ....................................7-35
Child restraint system ....................................................3-30 Lap belt......................................................................3-33
Lap/shoulder belt ......................................................3-33
Child-protector rear door lock ........................................4-19
Climate control system (Automatic) ..............................4-90 Air conditioning ........................................................4-95
Automatic heating and air conditioning....................4-91
Manual heating and air conditioning ........................4-92
Climate control system (Manual) ..................................4-81 Air conditioning ........................................................4-86
Climate control air filter............................................4-88
Heating and air conditioning ....................................4-82
Cigarette lighter ............................................................4-102
Climate control air filter ................................................4-88 Climate control air filter ................................................7-27
Clock (Digital) ..............................................................4-105
Clothes hanger ..............................................................4-106
Combined instrument, see instrument cluster ................4-43
Compact spare tyre ........................................................6-14
Compact spare tyre replacement ....................................7-39
Coolant ............................................................................7-18
Cooling fluid, see engine coolant ..................................7-18
Crankcase emission control system ................................7-68
Cruise control system ....................................................5-36
Cup holder ....................................................................4-103
Curtain air bag ................................................................3-46
Dashboard, see instrument cluster ..................................4-43
Dashboard illumination, see instrument panel
illumination..................................................................4-44
Defogging (Windscreen) ................................................4-97
Defogging logic (Windscreen)........................................4-99
Defroster (Rear window) ................................................4-80
Defrosting (Windscreen) ................................................4-97
Digital clock..................................................................4-105
Dimensions ......................................................................8-2
Displays, see instrument cluster ....................................4-43
Display illumination, see instrument panel illumination..................................................................4-44
Door locks ......................................................................4-16
C
D