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:

EPB Circuit Diagram (2)
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Climate Control Air Filter. Description and Operation
Description This has particle filter which eliminates foreign materials and odor. The particle filter includes odor filter as well as conventional dust filter to ensure comfortable interior envi ...

Air Flow Control (Mode Switch)
The mode selection button controls the direction of the air flow through the ventilation system. The air flow outlet port is same as manual climate control system. Face position Air flow is dir ...