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:

Output Speed Sensor. Specifications
Specifications ▷ Type: Hall effect sensor Operation condition [°C(°F)] ((-)40~150)) -40~302 Air gap(mm)in. (0.55~1) 0.0217~0.0394 ...

Installation
1. Installation is the reverse of removal. • When installing, apply the ATF oil or white vas ...

Side Airbag (SAB) Module. Description and Operation
Description The Side Airbags (SAB) are installed inside the front seat and protects the driver and passenger from danger when side crash occurs. The SRSCM determines deployment of side airbag by ...