2011 Hyundai Sonata check engine light

75
Maintenance
While 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-ahead
position.
• Notice if your vehicle constantly turns slightly or “pulls” to one side when trav-
eling 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 tires 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 windshield 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 tires and loose wheel lug nuts.
At least once a year:• Clean body and door drain holes.
• Lubricate door hinges and checks, andhood hinges.
• Lubricate door and hood locks and latches.
• Lubricate door rubber weatherstrips.
• Check the air conditioning system.
• Inspect and lubricate automatic transaxle linkage and controls.
• Clean battery and terminals.
• Check the brake fluid level.

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749
Maintenance
FUSESA 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, the
other 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 be
melted.
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 authorized HYUNDAI dealer.
Three kinds of fuses are used: blade type
for lower amperage rating, cartridge type,and multi fuse for higher amperage rat- ings.

OBK079042
Normal
Normal
Blade type
Cartridge type
Multi fuse Blown
Blown
Normal Blown
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 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 circuitand damage the system.

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Maintenance50
7Instrument panel fuse replace-
ment1. Turn the ignition switch and all other
switches 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 authorized
HYUNDAI dealer.
If you do not have a spare, use a fuse of the same rating from a circuit you maynot 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 must
be replaced.

OYF079020

OYF079021

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I3
Index
California perchlorate notice ··················\
··················\
·····7-73
Capacities (Lubricants) ··················\
··················\
················8-4
CareExterior care ··················\
··················\
··················\
········7-64
Interior care ··················\
··················\
··················\
·········7-68
Tire care··················\
··················\
··················\
···············7-36
Cargo weight ··················\
··················\
··················\
············5-50
Center console storage ··················\
··················\
···············4-98
Central door lock switch··················\
··················\
············4-19
Certification label ··················\
··················\
···············5-48, 8-6
Changing tires ··················\
··················\
··················\
··········6-13
Chains Tire chains ··················\
··················\
··················\
···········5-42
Checking tire inflation pressure··················\
··················\
·7-37
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) ··················\
···········4-91 Air conditioning ··················\
··················\
··················\
··4-94
Automatic heating and air conditioning··················\
··4-89
Manual heating and air conditioning ··················\
······4-90
Climate control system (Manual) ··················\
················4-79 Air conditioning ··················\
··················\
··················\
··4-85
Climate control air filter··················\
··················\
········4-87
Heating and air conditioning··················\
··················\
·4-80 Climate control air filter ··················\
··················\
············4-89
Climate control air filter ··················\
··················\
············7-29
Clock (Digital) ··················\
··················\
··················\
·······4-102
Clothes hanger ··················\
··················\
··················\
·······4-102
Combined instrument, see instrument cluster ···············4-46
Compact spare tire ··················\
··················\
··················\
···6-18
Compact spare tire replacement ··················\
··················\
7-41
Compass mirror, see the Electric chromic mirror (ECM)
with homeLink system and compass ··················\
······4-37
Consumer information ··················\
··················\
·················8-8
Coolant ··················\
··················\
··················\
··················\
···7-23
Cooling fluid, see engine coolant ··················\
················7-23
Crankcase emission control system ··················\
·············7-70
Cruise control system ··················\
··················\
················5-31
Cup holder ··················\
··················\
··················\
·············4-100
Curtain air bag ··················\
··················\
··················\
·········3-54
Dashboard, see instrument cluster ··················\
···············4-46
Dashboard illumination, see instrument panel illumination ··················\
··················\
··················\
·········4-47
Daytime running light··················\
··················\
················4-69
Defogging (Windshield) ··················\
··················\
············4-95
Defogging logic (Windshield) ··················\
··················\
···4-97
Defroster (Rear window) ··················\
··················\
···········4-78
Defrosting (Windshield) ··················\
··················\
············4-95
Digital clock··················\
··················\
··················\
···········4-102
Dimensions ··················\
··················\
··················\
················8-2C
D

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