How To Change A Kia Key Fob Battery. The rear cover should pop off relatively easily. Set the access cover aside in a safe place.

Locate the void or notch on the left side of the fob where the hinged swing out metal ignition key used to reside. Replace the battery with a new battery CR2032. Replace the battery with a new battery CR2032.
Install the battery in the reverse order of removal.
Separate the Kia key case. 5 Steps to change battery in smart Kia key fob. Try to avoid using excessive force. When replacing the battery make sure the battery position.
