How to Replace Hyundai Key Fob Battery: Step-by-Step Guide

Ever found yourself locked out of your car because your Hyundai key fob battery died at the worst possible moment? Frustrating, right? Well, fret not! In this article, we’ve got your back. Imagine the convenience of effortlessly changing the battery in your Hyundai key fob within minutes, saving you time and hassle. No more last-minute panics or unexpected car lockouts. With just a few simple steps, you’ll be back on the road in no time. So, let’s dive in and empower you to take control of your Hyundai key fob maintenance like a pro.

Gather the Necessary Tools

To change the battery in your Hyundai key fob, you’ll need a few tools on hand. Here are the essentials:

  • Flathead screwdriver: for opening the key fob.
  • Replacement battery: ensure it matches the existing one.
  • Small container: to hold screws securely.
  • Tweezers or small pliers: for handling the battery.

Click here to preview your posts with PRO themes ››

Don’t worry if you don’t have these tools readily available; they’re common household items found in most toolboxes.

Identify the Key Fob Model

To successfully change the battery in your Hyundai key fob, the first step is to Identify the Key Fob Model you have.

  • Look for the model number on the back of the key fob.
  • Check the owner’s manual for your Hyundai vehicle.
  • Visit the Hyundai website and enter your vehicle information to find the correct key fob model.

Once you have identified the key fob model, you can proceed with confidence to replace the battery and ensure your key fob is operating optimally.

Opening the Key Fob

To access the battery, you’ll need to open your Hyundai key fob. Here’s how:

  • Look for a small slot on the side of the key fob.
  • Insert a flathead screwdriver or a coin into the slot.
  • Gently twist to pry open the key fob.

Once the key fob is opened, you’ll have clear access to the battery compartment.

Replace the Battery

To change the battery in your Hyundai key fob, follow these steps:

  • Identify Battery Type: Check the existing battery to determine the correct replacement type.
  • Purchase a New Battery: Get a CR2032 battery or the one specified for your key fob model.
  • Remove Old Battery: Use a small tool to carefully pop out the old battery from its compartment.
  • Insert New Battery: Place the new battery in the same position with the positive(+) side facing up.
  • Test Key Fob: Check if the key fob is working properly by using it to lock and unlock your car.

Click here to preview your posts with PRO themes ››

Remember, replacing the battery in your Hyundai key fob is a simple process that ensures your device functions smoothly.

Reassembling the Key Fob

When reassembling your Hyundai key fob after replacing the battery, follow these simple steps to ensure everything fits back together properly:

  • Positioning the Circuit Board: Carefully place the circuit board back into the key fob case.
  • Reattaching the Buttons: Align the buttons with the appropriate slots on the circuit board before pressing them into place.
  • Securing the Key Fob: Gently press the key fob halves together, ensuring that they snap securely.

Always double-check that everything is back in its place before testing the key fob.


That’s it! Changing the battery in your Hyundai key fob is a quick and straightforward process that can help keep your key fob working smoothly. By following the steps outlined in this guide, you can easily replace the battery with a new CR2032 battery, ensuring that your key fob functions properly. Remember to reassemble the key fob correctly by positioning the circuit board, reattaching the buttons, and securing everything in place before testing it out. Maintaining your key fob is essential for hassle-free access to your vehicle, so don’t hesitate to replace the battery when needed. With these simple steps, you’ll have your Hyundai key fob up and running in no time!

Frequently Asked Questions

Q: What battery type should I use to replace my Hyundai key fob battery?

A: Use a CR2032 battery for your Hyundai key fob replacement.

Q: Where can I purchase a new CR2032 battery for my Hyundai key fob?

A: You can find CR2032 batteries at most convenience stores, electronics stores, or online retailers.

Click here to preview your posts with PRO themes ››

Q: How do I remove the old battery from my Hyundai key fob?

A: Open the key fob case, carefully remove the old battery, and dispose of it properly.

Q: How do I correctly insert the new CR2032 battery into my Hyundai key fob?

A: Place the new CR2032 battery into the key fob with the correct polarity (+ and -) orientation.

Q: What steps are involved in reassembling my Hyundai key fob after battery replacement?

A: Reassemble the key fob by positioning the circuit board, reattaching the buttons, and securing the key fob properly.

Q: Why is it important to test the key fob after replacing the battery?

A: Testing the key fob ensures that the new battery is properly installed and that the key fob functions correctly.

Battery industry professional with 5+ years of experience. Bachelor of Science in Electrical Engineering from Georgia Tech. Specializes in power systems and renewable energy.

Leave a Comment

Send this to a friend