Do it yourself
Frequently asked questions about cars and motorcycles

How to change the battery and shell of a Hyundai and Kia key

Model: Hyundai Hyundai Various
Part: Key

Let's see how to change the battery and shell of a Hyundai and Kia key: the battery is a common CR2032, which can be easily obtained from any supermarket or electronics store. The shell can be found on Amazon with the code B0D9LP4HLV for £8.46, with free delivery for Prime customers. Open the cover: on the back of the key, there is a slot near the open button. Use a small screwdriver to pry open the shell. Remove the battery, then take out the screw under the logo (usually hidden under a tiny rubber cap), unscrew it with a very small screwdriver, and split the shell in half. Remove the electronic board, take out the physical key, and transfer everything into the new shell: physical key, electronic board, and battery. Be careful with the spring (in the video, they rotate it two turns counterclockwise before closing). Join the two halves, screw the screw under the logo without overtightening, and check that all buttons work and that the LED lights up.

Posted on 12 July 2026 by ScegliAuto

Video tutorial

Related tutorials

Hyundai Hyundai Various In this video we can still see how to change the battery in a Hyundai car key: we apply force with a screwdriver in the slot that contains the key, i…
Hyundai Hyundai Various Let's see how to change the battery and key casing of a Hyundai/Kia vehicle: start with replacing the CR2032 battery. Open the key cover, remove the …
Hyundai Hyundai Various The video uploaded here shows how to replace the battery that powers the key/remote of Hyundai vehicles quickly and easily, applicable to multiple mo…

Other guides you may be interested in

How to Open a Stuck Boot on the Peugeot 407?

On the Peugeot 407, the boot may become stuck, possibly due to a problem with the control button or the lock actuator. In such cases, you can perform an emergency opening by following the simple procedure shown in this tutorial. First, open the rear doors, then lower the seat back by operating the release lever. Next, go inside the boot, locate the lock, and manually operate it using a flathead screwdriver. The boot will then be free to open.

Watch the video!


by ScegliAuto

More videos