Kia Optima (2015-2020): How to replace/change key fob battery? Works also for Kia K5 

Quick video on how to insert/install a new battery at the (smart) key fob for Kia Optima IV build from 2015 to 2018.
You will need a button cell battery CR2032.
And please make sure, that the new battery is inserted with + side down (against plastic surface).
This key fob is also for:
Kia Optima IV (K5), Kia Cadenzia (K7), Kia Sorento III, Kia Sportage IV, Kia Ceed III, Kia Picanto III, Kia Rio IV, Kia Stinger, ...
Hyundai Sonata, Hyundai Ionic, Hyundai i30, Hyundai Accent,...

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