Hyundai Ioniq Key Fob Battery Remote Replacement (2017, 2018, 2019)

The Hyundai Ioniq is one of the newest models in the Hyundai lineup. The Ioniq has three main variations: the Hybrid, the all Electric, and the Plug-in Hybrid. So far, there is only one key fob for all Ioniqs — the “D-Shaped” smart key fob. This device uses a CR2032 coin battery to power itself.

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IoniqD-Shaped2017, 2018, 2019CR2032Check on Amazon

How to replace the Hyundai Ioniq “D-Shaped” smart key fob battery (2017, 2018, 2019)

Scroll down to see a full video tutorial or keep reading for a step by step guide.

What you will need:
• 1x CR2032 battery
• Flat-head screwdriver
• Precision screwdriver (3.0mm/PH0 or smaller)
• Pen, pencil, toothpick or another thin tool

Buy Small Screwdriver Set on Amazon

First, let’s get that internal key removed. Push on the button on the bottom of the key fob to release the internal key. Directly next to the keyhole, there is a groove in the plastic like a small slot. Take a flat-head screwdriver and insert it into this slot. Twist the screwdriver and the two halves of the key fob will pop apart.

Now, locate the battery. You will need a small screwdriver or similar tool to remove the battery. Try to get your tool under the battery and pull it out with a prying motion. The battery will pop out. Take a new CR2032 battery and click it into place face-down. Reattach the two halves of the key fob and put your internal key back inside. Press on one of the buttons and make sure the red light on the front of the key fob comes on. If it does, you’re all set. Well done!

Hyundai Ioniq Key Fob Battery Replacement (2017 - 2020)

Amazon Basics 4 Pack CR2032 3 Volt Lithium Coin Cell Battery
  • IN THE BOX: 4-pack of CR2032 3 volt lithium coin cell batteries; replacement for BR2032, DL2032, and ECR2032
  • DEVICE COMPATIBLE: Ideal for watches, calculators, key fobs, Apple TV remotes, and other small electronics
  • DESIGNED TO LAST: 8-year leak-free shelf life

GIF Visual Guide

In this video, I will show you how to change the internal battery in a Hyundai Ioniq key Fob. This key Fob was used between 2017 and 2020 and uses a CR 2032 battery. You can change this battery yourself at home. It's very simple. All you'll need is a flathead screwdriver and a CR 2032 battery if you'd like to get one online.

I've left a link down in the YouTube description. They're just a couple of bucks. It'll come right to your doorstep. It's probably the easiest way to get one. And once you have your battery, just push on this button to pull out the internal key.

Now we can see the keyhole and then a slot right next to it. We're going to take our flathead screwdriver, insert it into that little slot and twist just like that. Now the key Fob is starting to come apart. We can put our tool in twist, work our way down, twist until the two halves come apart. Now we have the battery and it's housed in this little plastic area.

You're going to need to use something to get it out. If you have a smaller flathead than I do, you can maybe just pry at it. But to safely remove it, I'm going to use this precision screwdriver. If you'd like to get one of these, you can get a set of them just for a few dollars on Amazon. So I'll leave a link down in the description.

And using something small enough to fit right in this little area, we're going to push all the way down to the bottom under the battery and just pry like that and it will pop right out. Take a brand new CR 2032 battery, make sure that this positive side with the text and information goes down. And now just position it, pushing it down into this little metal component before clicking the top into place and it should sit flush in there. Now we just click the two halves of the key Fob back together like that. Put the key back in its place.

And as you can see, well, if you had a fresh battery, this light would come on indicating that the battery has juice and it's ready to go. And that's really all it takes to change your internal battery. If this video helped, you feel free to leave a like and for more information, click the link in the YouTube description to go to to see the full guide on the Hyundai Ioniq. Thank you so much, so much for watching.