2007 KIA Optima check engine

Knowing your vehicle83Your vehicle is equipped with an elec-
tronic engine immobilizer system to
reduce the risk of unauthorized vehicle
use.
Your immobilizer system is comprised of
a small transponder in the ignition key,
and antenna coil in the key cylinder and
ICU (Immobilizer Control Unit) in the
steering shaft.
With this system, whenever you insert
your ignition key into the ignition switch
and turn it to ON, the antenna coil in the
ignition switch receives a signal from the
transponder in the ignition key and then
sends the signal to the ECU (Engine
Control Unit).
The ECU checks the signal whether the
ignition key is valid.
If the key is determined to be valid, the
engine will start.
If the key is determined to be invalid, the
engine will not start.
To deactivate the immobilizer
system:Insert the ignition key into the key cylin-
der and turn it to the ON position.To activate the immobilizer sys-
tem:Turn the ignition key to the OFF position.
The immobilizer system activates auto-
matically. Without a valid ignition key for
your vehicle, the engine will not start.✽ ✽NOTICEWhen starting the engine, do not use the
key with other immobilizer keys around.
Otherwise the engine may not start or
may stop soon after it starts. Keep keys
separate to avoid immobilizer malfunc-
tions.
Limp home (override) procedureWhen you turn the ignition key to the ON
position, if the IMMO indicator goes off
after blinking 5 times, your transponder
equipped in the ignition key is out of order.
You cannot start the engine without the
lime home procedure. To start the engine,
you have to input your password by using
the ignition switch.
The following procedure is how to input
your password of “2345” as an example.
1. Turn the ignition key to the ON position.
The IMMO indicator ( ) will blink 5
times and go off indicating the begin-
ning of the limp home procedure.
2. Turn the ignition key to the ACC posi- tion.
3. To enter the first digit (in this example “2”), turn the ignition key to the ON and
ACC position twice. Perform the same
procedure for the next digits between 3
seconds and 10 seconds (for example,
for “3”, turn the ignition ON and ACC 3
times).
IMMOBILIZER SYSTEM (IF EQUIPPED)

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Knowing your vehicle
Air bag warning lightThe purpose of air bag warning light in
your instrument panel is to alert you of a
potential problem with your air bag -
Supplemental Restraint System (SRS).
When the ignition switch is turned ON,
the indicator light should blink or illumi-
nate for approximately 6 seconds, then
go off.
Have the system checked if:
The light does not turn on briefly when
you turn the ignition ON.
 The light stays on after the engine
starts.
 The light comes on while the vehicle is
in motion.
Air bag (Supplemental Restraint
System) service Your Supplemental Restraint System is
virtually maintenance-free. There are no
parts which you can service.
You must have the system serviced
under the following circumstances:
If an air bag ever inflates, the air bag
must be replaced. Do not try to remove
or discard the air bag by yourself. This
must be done by an authorized Kia
dealer.
 If the air bag warning indicator light
alerts you to a problem, have the air
bag system checked as soon as possi-
ble. Otherwise, your air bag system
may be ineffective.
WARNING
- Children
 Never put a child in the front pas-
senger seat, even if they are in a
child restraint. If the front passen-
ger air bag inflates, it may cause
severe or fatal injuries.
 When children are seated in the rear outboard seats in which cur-
tain air bags are equipped, be
sure to put the child restraint sys-
tem as far away from the door
side as possible, and secure the
child restraint system to be
locked in position.
AIR
BAG
CAUTION
- No modification
Do not modify any part of the air
bag system. Modification couldmake the air bag system ineffective or could cause unnecessarydeployment.

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Knowing your vehicle
Outside the vehicleTo open the trunk, insert the key into
the lock and turn it to the right (clock-
wise).
 To close the trunk, use both hands to
push the trunk lid down. Check to see
if the trunk is completely shut.
Trunk room lampTrunk room lamp turns on when the trunk
is opened. It remains on until the trunk is
securely closed.✽ ✽
NOTICEMake sure to close the trunk securely. If
it remains open while engine is not run-
ning, it may cause battery discharge
because trunk room lamp remains on.
TRUNK (IF EQUIPPED)
WARNING
Engine exhaust and a wide variety
of automobile components and
parts, including components found
in the interior furnishings in a vehi-
cle, contain or emit chemicals
known to the State of California to
cause cancer and birth defects and
reproductive harm. In addition, cer-
tain fluids contained in vehicles
and certain products of component
wear contain or emit chemicals
known to the State of California to
cause cancer and birth defects or
other reproductive harm.
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Knowing your vehicle72
3Closing the hood1. Before closing the hood, check the fol-
lowing:
 All filler caps in engine compartment must be correctly installed.
 Gloves, rags or any other com- bustible material must be removed
from the engine compartment.
2. Lower the hood halfway and push down to securely lock in place.
Make sure the hood is properly locked
before driving.
FUEL FILLER LID 1. Stop the engine.
2. To open the fuel filler lid, push therelease button located on the driver ’s
lower door. 3. Pull the fuel filler lid out to open.
4. To remove the cap, turn the fuel tank
cap counterclockwise.
5. Refuel as needed.
6. To install the cap, turn it clockwise until it “clicks”. This indicates that the cap is
securely tightened.
7. Close the fuel filler lid and push it light- ly and make sure that it is securely
closed.
CAUTION
- Hood
 Before closing the hood, make sure that all engine parts andtools have been removed fromthe engine area and that no one’shands are near the hood opening.
 Do not leave gloves, rags or any other combustible material in theengine compartment. Doing somay cause a heat-induced fire.
CAUTION
To avoid injury from sharp edges, it is recommended that protectivegloves be worn if there is a need toopen the fuel filler door manually.
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Knowing your vehicle
WARNING
- Refueling
If pressurized fuel sprays out, it can
cover your clothes or skin and thus
subject you to the risk of fire and
burns. Always remove the fuel cap
carefully and slowly. If the cap is
venting fuel or if you hear a hissing
sound, wait until the condition
stops before completely removing
the cap.
WARNING -
Refueling dan-
gers
Automotive fuels are flammable
materials. When refueling, please
note the following guidelines care-
fully. Failure to follow these guide-
lines may result in severe personal
injury, severe burns or death by fire
or explosion.
 Before refueling note the locationof the Emergency Gasoline Shut-
Off, if available, at the gas station
facility.
(Continued)
(Continued)
Static electricity discharge from
the container can ignite fuel
vapors causing a fire. Once refu-
eling has begun, contact with the
vehicle should be maintained
until the filling is complete.
Use only portable plastic fuel
containers designed to carry and
store gasoline.
 Do not use cellular phones while refueling. Electric current and/or
electronic interference from cellu-
lar phones can potentially ignite
fuel vapors causing a fire.
 When refueling, always shut the engine off. Sparks produced by
electrical components related to
the engine can ignite fuel vapors
causing a fire. Once refueling is
complete, check to make sure the
filler cap and filler door are
securely closed, before starting
the engine.
(Continued)
(Continued)
 Before touching the fuel nozzle,you should eliminate potentially
dangerous static electricity dis-
charge by touching another metal
part of the vehicle, a safe distance
away from the fuel filler neck,
nozzle, or other gas source.
 Do not get back into a vehicle once you have begun refueling
since you can generate static
electricity by touching, rubbing or
sliding against any item or fabric
(polyester, satin, nylon, etc.)
capable of producing static elec-
tricity. Static electricity discharge
can ignite fuel vapors resulting in
rapid burning. If you must re-
enter the vehicle, you should
once again eliminate potentially
dangerous static electricity dis-
charge by touching a metal part
of the vehicle, away from the fuel
filler neck, nozzle or other gaso-
line source.
 When using a portable fuel con- tainer be sure to place the con-
tainer on the ground prior to refu-
eling.
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Knowing your vehicle74
3
✽
✽
NOTICE• Make sure to refuel with unleaded
fuel only.
• Check to make sure the fuel filler cap is securely closed after refueling. A loose
fuel filler cap may cause the “Check
Engine (Malfuntion indicator, )”
light in the instrument panel to illumi-
nate unnecessarily.
• If the fuel filler cap requires replace- ment, use only a genuine Kia cap or
the equivalent specified for your vehi-
cle. An incorrect fuel filler cap can
result in a serious malfunction of the
fuel system or emission control sys-
tem.
• Do not spill fuel on the exterior sur- faces of the vehicle. Any type of fuel
spilled on painted surfaces may dam-
age the paint.
When fuel filler lid does not open
with the release button1. Open the trunk.
2. Pull the emergency hook for fuel filler lid inside the trunk.
CHECKCHECK
(Continued)
 DO NOT use matches or a lighterand DO NOT SMOKE or leave a lit
cigarette in your vehicle while at a
gas station especially during
refueling. Automotive fuel is high-
ly flammable and can, when ignit-
ed, result in fire.
 If a fire breaks out during refuel- ing, leave the vicinity of the vehi-
cle, and immediately contact the
manager of the gas station and
then contact the local fire depart-
ment or 911.
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Driving your vehicle24Illuminated ignition switchWhenever a door is opened, the ignition
switch will be illuminated for your con-
venience, provided the ignition switch is
not in the ON position. The light will go off
approximately 10 seconds after closing
the door or when the ignition switch is
turned on.
Ignition switch and anti-theft
steering column lock Ignition switch positionLOCK
The steering wheel locks to protect
against theft. The ignition key can be
removed only in the LOCK position.
When turning the ignition switch to the
LOCK position, push the key inward at
the ACC position and turn the key toward
the LOCK position (manual transaxle).
ACC (Accessory)
The steering wheel is unlocked and elec-
trical accessories are operative.ON
This is the normal running position after
the engine is started. The warning lights
can be checked before the engine is
started.
Do not leave the ignition switch ON if the
engine is not running to prevent batterydischarge.START
Turn the ignition key to the START posi-
tion to start the engine. The engine will
crank until you release the key; then it
returns to the ON position. The brake
warning lamp can be checked in this
position.If it is difficult to turn the ignition key to the START position, turn the steeringwheel right and left to release resistance and then turn the key.
Automatic transaxleWhen turning the ignition switch to the
LOCK position, the shift lever must be in
the P (Park) position.
IGNITION SWITCH
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Driving your vehicle
To release the parking brake, pull the
handle up slightly and push the release
button, then lower the handle to the
released position while holding the but-
ton in.Check the brake warning light by turning
the ignition switch ON (do not start the
engine). This light will be illuminated
when the parking brake is applied with
the ignition switch in the START or ON
position.
Before driving, be sure the parking brake
is fully released and the brake warning
light is off.
If the brake warning light remains on
after the parking brake is released, there
may be a malfunction in the brake sys-
tem. Immediate attention is necessary.
If at all possible, cease driving the vehi-
cle immediately. If that is not possible,
use extreme caution while operating the
vehicle and only continue to drive the
vehicle until you can reach a safe loca-
tion or repair shop.
WARNING
- Parking brake
 To prevent unintentional move-
ment when stopped and leaving
the vehicle, do not use the
gearshift lever in place of the
parking brake. Set the parking
brake AND make sure the
gearshift lever is securely posi-
tioned in 1st (First) gear or R
(Reverse) for manual transaxle
equipped vehicles and in P (Park)
for automatic transaxle equipped
vehicles.
 Never allow a person who is unfa- miliar with the vehicle or children
to touch the parking brake. If the
parking brake is released unin-
tentionally, serious injury may
occur.
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