Kia Optima: Auto door lock/unlock feature (if equipped)

Impact sensing door unlock system (if equipped)

All doors will automatically unlock when an impact causes the air bags to deploy. ...

Speed sensing door lock system (if equipped)

All doors will be automatically locked after the vehicle speed exceeds 15 km/h (9.3 mi/h). And all doors will be automatically unlocked when you turn the engine off or when you remove the ignition ...

See also:

Circuit Diagram - ESC (2)
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Headlight Replacement
WARNING - Halogen Bulbs Halogen bulbs contain pressurized gas that will produce flying pieces of glass if broken. Always handle them carefully, and avoid scratches and abrasions. If the ...

Horn
To sound the horn, press the horn symbol on your steering wheel. Check the horn regularly to be sure it operates properly. ✽ NOTICE To sound the horn, press the area indicated by the horn ...