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How do you change a Hyundai key battery?
The key fob for my Hyundai is acting weird and not unlocking my doors consistently. I think the battery needs to be changed. How can I replace the battery in my Hyundai key fob?
Jessie Devine · Updated on
Reviewed by Shannon Martin, Licensed Insurance Agent.
Bleh—it can be so annoying when something you depend on becomes unreliable. But no worries! Here’s how to change your
Hyundai
key battery.First, you have to find out what battery you need and buy it. Most Hyundai key fobs will use a CR2032 battery, but you should check your owner’s manual to be sure.
The next part will vary a little depending on the year of your Hyundai. If you have a newer Hyundai, take apart the key fob like this:
- Press and hold the metal tab or button to remove the metal key
- Insert the metal key into the small opening on the back cover and turn it to open the case
If you have an older Hyundai, open the key fob like this:
- Find the small notch on the casing
- Insert something flat (like a flathead screwdriver or a coin) into the notch and turn it to pop the case open
The next part is the same for older and newer Hyundais.
- Very gently, lift the circuit board to expose the battery
- Take a photo of the battery’s position so you don’t forget it
- Remove the battery
- Replace the battery with the new one
- Reinstall all pieces in reverse order
- Test your key fob
That’s it! You’ve changed your Hyundai key battery, and it should be working again.
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