How to Replace the Shell of an Aging Car Key by Yourself?
2 Answers
Press the button on the mechanical key of the remote key to open the mechanical key; hold the mechanical key end with your right hand, with the remote key logo facing upward. Then use your hand to lift the other end of the battery cover along the raised side, so the battery cover can be opened, exposing the battery. Insert a toothpick into the notch at the edge of the battery and gently pry to remove the battery. Place the new battery into the battery slot, close the battery cover, and press lightly to ensure the cover is securely closed.
The car key casing has aged and I want to replace it myself—it’s actually quite simple. I often do it myself to avoid wasting money at the shop. First, determine whether your key is mechanical or remote-controlled. Most car keys have dedicated replacement casings, and you can search online for a compatible one by model. The preparation requires a small screwdriver, a new casing, and possibly some glue. The steps are: turn off the battery to prevent short-circuiting, gently disassemble the old casing (be careful not to damage the chip inside—it’s the heart of a remote key), then remove the buttons and internal components and transfer them to the new casing. Make sure the buttons are aligned properly, then tighten the screws or glue it shut. Test functions like unlocking and starting the car to ensure everything works. Remember to work on a clean surface to avoid losing small parts; the key will be more durable after replacement. DIY casing replacement avoids the high cost of replacing the entire key, and you can even customize it with a preferred color. Aged keys may malfunction, but the new casing improves the feel significantly.
