Kia Optima Key Fob Battery Replace Troubleshooting Simple Easy!

How To Replace A Battery In Kia Optima and other Kia and Hyundai models. For illustration purposes, demonstrated on a 2013 kia optima. Fob uses a single CR2032 battery Customer was having issues with the keyfob not working correctly - had to be much closer to car for it to work than normal and even then often would not work to open or lock doors and trunk. Troubleshooting should assume a dying or weak battery before thinking the fob is malfunctioning or something worse. In this case the customer did not have the second fob handy so I opened up this one and tested the battery strength on a volt meter. It read 2.79 which indicates a weak battery and would create the symptoms customer was experiencing. Once it was swapped for a new battery, the fob worked just like it was supposed to. **If the video was helpful, remember to give it a "thumbs up" and consider subscribing.