Kia Carnival (KA4) 2022-2026 Owner's Manual: Battery replacement
The Kia Carnival smart key utilizes a standard 3-volt lithium battery designed to last for several years under normal usage conditions. If you are uncertain about the replacement procedure, please contact an authorized Kia dealer for professional assistance. Insert a slim, non-marring tool into the designated slot and gently pry open the smart key housing cover.
CAUTION
CAUTION