2022 hyundai santa fe sport key fob battery replacement

Changing a Hyundai Smart Key Fob Battery: Step-by-Step Instructions & Video Guide

You’re walking out of the store with your hands full and you press the button on your key fob to unlock your Hyundai. Nothing happens. It seems you have a dead battery. Let us show you how to fix that.

Here’s out step-by-step guide for changing a dead battery on a Hyundai Smart Key fob. For more visual learners, you can skip to the bottom for the video tutorial.

Keys Not Working?

Changing Your Hyundai Key Fob Battery

Replacing your Hyundai key fob’s battery is straightforward. All you need is a replacement CR 2032 3V battery. A 5-pack of them usually costs around $3-$5. You will be touching a motherboard during this process, so it’s recommended that you also wear latex gloves to avoid accidental damage.

1. Remove emergency key from bottom of fob
2. Insert key into groove between release button and key slot
3. Turn the key (like you’re unlocking a door) until the fob pops open
4. Face buttons downward (or they will fall out) and open the fob
5. Set aside fob half with buttons and remove the barrier and motherboard
6. Use key to remove dead battery from its bracket
7. Put the new battery in its bracket + side down
8. Replace the motherboard, barrier, and button-half of fob
9. Line up the release button peg with its corresponding hole
10. Snap the fob back together

And you’re done! To test your Hyundai Smart Key, press any of the buttons. A small red light above the unlock button should flash if everything was done correctly.

Video Tutorial

Is Your Smart Key Still Not Working?

If your Hyundai Smart Key still isn’t working, schedule a service appointment. It may be something other than a dead battery. If you have any questions, give us a call. We’ll be happy to help.