Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2012 Kia Optima HybridFACTORY OEM SERVICE PROCEDURE

Repair procedures: Installation

NOTE: When replacing the ECM, the vehicle equipped with the smart key must be performed the procedure as below.
[In the case of installing used ECM]

Perform "Neutral mode" procedure with GDS. (Refer to "NEUTRALIZATION STATUS CHECK " in BE group)
Turn the ignition ON and OFF position after completing "ECM neutral mode".

Then the ECM key register process is completed automatically.
[In the case of installing new ECM]

Turn the ignition ON and OFF position after completing "ECM neutral mode".

Then the ECM key register process is completed automatically.

Factory Service Tools

Use the Manual With the Right Hardware

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.

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