2010 KIA Optima check engine

Features of your vehicle
54
4
To turn the ECO indicator OFF/ON
• Type A
Select the ECO mode by pressing the
TRIP button for less than 1 second.
Then, press the TRIP button for more
than 1 second.
• Type B
When the instantaneous fuel consump-
tion mode is displayed on the LCD moni-
tor or the system is not working properly,
the indicator turns off.
If the indicator turns off when the instan-
taneousant fuel consumption mode is not
selected, have the system checked by an
authorized KIA dealer as soon as possi-
ble.
D150300AUN
Warnings and indicators
All warning lights are checked by turning
the ignition switch ON (do not start the
engine). Any light that does not illuminate
should be checked by an authorized KIA
dealer.
After starting the engine, check to make
sure that all warning lights are off. If any
are still on, this indicates a situation that
needs attention. When releasing the
parking brake, the brake system warning
light should go off. The fuel warning light
will stay on if the fuel level is low.
D150302AUN
Air bag warning light
This warning light will illuminate for
approximately 6 seconds each time you
turn the ignition switch to the ON posi-
tion.
This light also comes on when the
Supplemental Restraint System (SRS) is
not working properly. If the SRS air bag
warning light does not come on, or
continuously remains on after operating
for about 6 seconds when you turned the
ignition switch to the ON position or start-
ed the engine, or if it comes on while
driving, have the SRS inspected by an
authorized KIA dealer.
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455
Features of your vehicle
D150303AUN
Anti-lock brake system(ABS) warning light
This light illuminates if the ignition switch
is turned ON and goes off in approxi-
mately 3 seconds if the system is operat-
ing normally.
If the ABS warning light remains on,
comes on while driving, or does not
come on when the ignition switch is
turned to the ON position, this indicates
that there may be a malfunction with the
ABS.
If this occurs, have your vehicle checked
by an authorized KIA dealer as soon as
possible. The normal braking system will
still be operational, but without the assis-
tance of the anti-lock brake system.
Electronic brake force distri-
bution (EBD) system warning
light
If these two warning lights
illuminate at the same time
while driving, your vehicle
may have a malfunction with
the ABS and EBD system. In this case, your ABS and regular brake
system may not work normally. Have the
vehicle checked by an authorized KIA
dealer as soon as possible.
✽ ✽
NOTICE
If the ABS warning light or EBD warn-
ing light is on and stays on, the
speedometer or odometer/tripmeter
may not work. In this case, have your
vehicle checked by an authorized KIA
dealer as soon as possible.
D150304ABH-EU
Seat belt warning
As a reminder to the driver, the seat belt
warning light will blink for approximately
6 seconds each time you turn the ignition
switch ON regardless of belt fastening.
The warning light will blink again for
approximately 6 seconds when starting
the engine.
If the driver’s seat belt is not fastened
when the ignition switch is turned ON
and/or START, the seat belt warning light
and the seat belt warning chime will
operate for approximately 6 seconds until
the belt is fastened. And if the driver’s
seat belt is disconnected after the igni-
tion switch is turned ON, the seat belt
warning light will blink for approximately
6 seconds until the belt is fastened. If the
driver's seat belt is not fastened when the
vehicle speed exceeds 10 km/h (6 mph),
the seat belt warning light and chime will
operate for approximately 11 times with a
pattern of 6 seconds on and 24 seconds
off until the belt is fastened or the vehicle
speed decreases below 5 km/h (3 mph).
WARNING
If the both ABS and brake warning
lights are on and stay on, your vehi-
cle’s brake system will not work
normally during sudden braking. In
this case, avoid high speed driving
and abrupt braking. Have your vehi-
cle checked by an authorized KIA
dealer as soon as possible.

Features of your vehicle
56
4
D150305AUN
Turn signal indicator
The blinking green arrows on the instru-
ment panel show the direction indicated
by the turn signals. If the arrow comes on
but does not blink, blinks more rapidly
than normal, or does not illuminate at all,
a malfunction in the turn signal system is
indicated. Your dealer should be consult-
ed for repairs.
D150306AUN
High beam indicator
This indicator illuminates when the head-
lights are on and in the high beam posi-
tion or when the turn signal lever is pulled
into the Flash-to-Pass position.
D150331ABH
Tail light indicator
(if equipped)
This indicator illuminates when the tail
lights are on.
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Engine oil pressure
warning light
This warning light indicates the engine oil
pressure is low.
If the warning light illuminates while driv-
ing:
1. Drive safely to the side of the road and stop.
2. With the engine off, check the engine oil level. If the level is low, add oil as
required.
If the warning light remains on after
adding oil or if oil is not available, call an
authorized KIA dealer.
CAUTION
If the oil pressure warning light stays on while the engine is run-ning, serious engine damage may result. The oil pressure warninglight comes on whenever there isinsufficient oil pressure. In normal operation, it should come on whenthe ignition switch is turned on, then go out when the engine isstarted. If the oil pressure warning light stays on while the engine isrunning, there is a serious malfunc-tion.
If this happens, stop the car assoon as it is safe to do so, turn offthe engine and check the oil level. If the oil level is low, fill the engine oilto the proper level and start the engine again. If the light stays onwith the engine running, turn theengine off immediately. In any instance where the oil light stays onwhen the engine is running, theengine should be checked by an authorized KIA dealer before thecar is driven again.
CAUTION
If the engine is not stopped imme- diately after the engine oil pressurewarning light is illuminated, severe damage could result.

457
Features of your vehicle
D150308AUN
Parking brake & brake fluidwarning light
Parking brake warning
This light is illuminated when the parking
brake is applied with the ignition switch in
the START or ON position. The warning
light should go off when the parking
brake is released.
Low brake fluid level warning
If the warning light remains on, it may
indicate that the brake fluid level in the
reservoir is low.
If the warning light remains on:
1. Drive carefully to the nearest safe location and stop your vehicle.
2. With the engine stopped, check the brake fluid level immediately and add
fluid as required. Then check all brake
components for fluid leaks.
3. Do not drive the vehicle if leaks are found, the warning light remains on or
the brakes do not operate properly.
Have the vehicle towed to any author-
ized KIA dealer for a brake system
inspection and necessary repairs. Your vehicle is equipped with dual-diago-
nal braking systems. This means you still
have braking on two wheels even if one
of the dual systems should fail. With only
one of the dual systems working, more
than normal pedal travel and greater
pedal pressure are required to stop the
car. Also, the car will not stop in as short
a distance with only a portion of the
brake system working. If the brakes fail
while you are driving, shift to a lower gear
for additional engine braking and stop the
car as soon as it is safe to do so.
To check bulb operation, check whether
the parking brake and brake fluid warning
light illuminates when the ignition switch
is in the ON position.
D150312AMG
Shift pattern indicator
(if equipped)
The indicator displays which automatic
transaxle shift position is selected.
D150313AUN
Charging system warninglight
This warning light indicates a malfunction
of either the generator or electrical
charging system.
If the warning light comes on while the
vehicle is in motion:
1. Drive to the nearest safe location.
2. With the engine off, check the genera- tor drive belt for looseness or break-
age.
3. If the belt is adjusted properly, a prob- lem exists somewhere in the electrical
charging system. Have an authorized
KIA dealer correct the problem as
soon as possible.
WARNING
Driving the vehicle with a warning
light on is dangerous. If the brake
warning light remains on, have the
brakes checked and repaired imme-
diately by an authorized KIA dealer.

Features of your vehicle
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D150309AUN
Front fog light indicator
(if equipped)
This light comes on when the front fog
lights are ON.
D150315AHD
Trunk lid open warninglight
This warning light illuminates when the
trunk lid is not closed securely with the
ignition in any position.
D150316AUN
Door ajar warning light
This warning light illuminates when a
door is not closed securely with the igni-
tion switch in any position.
D150317AUN
Immobilizer indicator
Without smart key system
This light illuminates when the immobiliz-
er key is inserted and turned to the ON
position to start the engine.
At this time, you can start the engine. The
light goes out after the engine is running.
If this light blinks when the ignition switch
is in the ON position before starting the
engine, have the system checked by an
authorized KIA dealer.
D150318AUN
Low fuel level warning light
This warning light indicates the fuel tank
is nearly empty. When it comes on, you
should add fuel as soon as possible.
Driving with the fuel level warning light on
or with the fuel level below “E” can cause
the engine to misfire and damage the
catalytic converter.
D150319AUN
Low washer fluid levelwarning light (if equipped)
This warning light indicates the washer
fluid reservoir is near empty. Refill the
washer fluid as soon as possible.

459
Features of your vehicle
D150320AUN
Malfunction indicator light(MIL) (check engine light)
This indicator light is part of the Engine
Control System which monitors various
emission control system components. If
this light illuminates while driving, it indi-
cates that a potential malfunction has
been detected somewhere in the emis-
sion control system.
This light will also illuminate when the
ignition switch is turned to the ON posi-
tion, and will go out in a few seconds
after the engine is started. If it illuminates
while driving, or does not illuminate when
the ignition switch is turned to the ON
position, take your vehicle to your near-
est authorized KIA dealer and have the
system checked.
Generally, your vehicle will continue to be
drivable, but have the system checked by
an authorized KIA dealer promptly.
D150323AMG-EU
ESC indicator (ElectronicStability Control)
The ESC indicator will illuminate when
the ignition switch is turned ON, but
should go off after approximately 3 sec-
onds. When the ESC is on, it monitors
the driving conditions and under normal
driving conditions, the ESC light will
remain off. When a slippery or low trac-
tion condition is encountered, the ESC
will operate, and the ESC indicator will
blink to indicate the ESC is operating.
CAUTION
Prolonged driving with the Malfunction Indicator Light illumi-nated may cause damage to theemission control systems whichcould effect drivability and/or fuel economy.

If the Malfunction Indicator Light illuminates, potential catalyticconverter damage is possiblewhich could result in loss ofengine power. Have the EngineControl System inspected as soonas possible by an authorized KIAdealer.
ESC

Features of your vehicle
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D200200AUN
Windshield washers
In the OFF position, pull the lever gently
toward you to spray washer fluid on the
windshield and to run the wipers 1-3
cycles.
Use this function when the windshield is
dirty.
The spray and wiper operation will con-
tinue until you release the lever.
If the washer does not work, check the
washer fluid level. If the fluid level is not
sufficient, you will need to add appropri-
ate non-abrasive windshield washer fluid
to the washer reservoir.
The reservoir filler neck is located in the
front of the engine compartment on the
passenger side.
CAUTION
To prevent possible damage to the
washer pump, do not operate thewasher when the fluid reservoir isempty.
WARNING
Do not use the washer in freezing
temperatures without first warming
the windshield with the defrosters;
the washer solution could freeze on
contact with the windshield and
obscure your vision.
CAUTION
To prevent possible damage to the wipers or windshield, do notoperate the wipers when thewindshield is dry.
To prevent damage to the wiper blades, do not use gasoline,kerosene, paint thinner, or othersolvents on or near them.
To prevent damage to the wiper arms and other components, donot attempt to move the wipersmanually.
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Features of your vehicle
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Air conditioning system operation tips
If the vehicle has been parked in direct
sunlight during hot weather, open the
windows for a short time to let the hot
air inside the vehicle escape.
To help reduce moisture inside of win- dows on rainy or humid days, decrease
the humidity inside the vehicle by oper-
ating the air conditioning system.
During air conditioning system opera- tion, you may occasionally notice a
slight change in engine speed as the
air conditioning compressor cycles.
This is a normal system operation
characteristic.
Use the air conditioning system every month if only for a few minutes to
ensure maximum system performance.
When using the air conditioning sys- tem, you may notice clear water drip-
ping (or even puddling) on the ground
under the passenger side of the vehi-
cle. This is a normal system operation
characteristic.
Operating the air conditioning system in the recirculated air position provides
maximum cooling, however, continual
operation in this mode may cause the
air inside the vehicle to become stale.
During cooling operation, you may occasionally notice a misty air flow
because of rapid cooling and humid air
intake. This is a normal system opera-
tion characteristic.
D230300AMG-EC
Climate control air filter
(if equipped)
The climate control air filter installed
behind the glove box filters the dust or
other pollutants that come into the vehi-
cle from the outside through the heating
and air conditioning system. If dust or
other pollutants accumulate in the filter
over a period of time, the air flow from the
air vents may decrease, resulting in
moisture accumulation on the inside of
the windshield even when the outside
(fresh) air position is selected. If this hap-
pens, have the climate control air filter
replaced by an authorized KIA dealer.
✽ ✽ NOTICE
• If the car is being driven in severe
conditions such as dusty, rough roads,
more frequent climate control air fil-
ter inspections and changes are
required.
• When the air flow rate is suddenly decreased, the system should be
checked at an authorized KIA dealer.
1LDA5047
Outside air
Recirculatedair
Climate control
air filter Blower
Evaporator
coreHeater core