How to Replace the Key Battery for Kia KX3?
2 Answers
To replace the key battery for the Kia KX3, follow these steps: 1. Remove the mechanical key. On the side of the remote key, you will see two square holes—one for storing the mechanical key and the other for prying open the key (maintenance hole). 2. Use a flat-head screwdriver to insert into the maintenance hole and pry open the remote key. 3. Open the remote key, remove the old battery, and install the new battery with the positive side facing inward. Then reassemble the key. The Kia KX3 is a compact SUV under Dongfeng Yueda Kia, with dimensions of 4270mm in length, 1780mm in width, and 1630mm in height, and a wheelbase of 2590mm. The vehicle features a three-spoke multifunction steering wheel with metal accents, and the seats are available in black leather with red stitching.
Changing the battery in your Kia KX3 key is super easy—I found it quite effortless when I did it myself for the first time. Just grab a small flathead screwdriver or a coin, gently pry open the seam on the back cover of the key, being careful not to break the clips by using too much force. Inside, you’ll find a small round battery, typically a CR2032. Note its orientation in the slot—the positive side (marked with a +) faces upward when inserting the new battery. Remove the old one, press the new one firmly into place, then snap the back cover shut securely. Test the unlock button to ensure it responds properly—if it works, you’re done! The key battery usually lasts two to three years. If you notice the remote range suddenly shortening or buttons becoming unresponsive, it’s a sign the battery is running low. Replace it promptly to avoid hassle. Keeping a spare battery in your glove box ensures peace of mind in emergencies.
