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

Ever found yourself locked out of your car because your Hyundai key fob battery decided to call it quits at the most inconvenient time? Frustrating, right? Well, fret not, as we’ve got your back with a quick and easy solution.

Imagine being able to effortlessly replace the battery in your Hyundai key fob within minutes, saving you time and hassle. No more frantic searches for spare keys or waiting around for assistance.

Gather Supplies

When changing the battery in your Hyundai key fob, ensuring you have the right supplies at hand is essential. Here’s what you’ll need:

  • Replacement Battery: Look up your Hyundai key fob model to determine the correct battery type.
  • Precision Screwdriver: A small Phillips or flat-head screwdriver to open the key fob.
  • Work Surface: A clean, well-lit area to prevent losing tiny components.
  • Patience: Taking your time can prevent accidental damage to the key fob.

Now that you have your supplies ready, let’s move on to the next steps.

Identify the Key Fob Type

When changing the battery in your Hyundai key fob, the first step is to identify the type of key fob you have. This is crucial as different models may require different battery types and replacement methods. Here’s how you can determine the type of key fob:

  • Check the Owner’s Manual: The owner’s manual often provides detailed information about the key fob, including the type of battery it uses and how to replace it.
  • Inspect the Key Fob: Examine your key fob closely for any markings or labels that indicate the model or battery type. Some key fobs have this information printed on the back or inside the fob.
  • Online Research: If you cannot find the information in the owner’s manual or on the key fob itself, consider searching online using the key fob’s model number or the Hyundai vehicle model it came with.

Click here to preview your posts with PRO themes ››

Once you have identified the key fob type, you can proceed with confidence to procure the correct replacement battery and move on to the next steps of the battery replacement process.

Open the Key Fob

To open your Hyundai key fob, you’ll need a precision screwdriver that fits the screws on the fob. Start by locating and removing these screws. Once the screws are out, gently pry open the key fob using a tool like a small flathead screwdriver or a plastic opening tool.

Be careful not to force the fob open, as you could break the plastic casing. Slow and steady pressure is key to avoiding any damage. As you open the fob, be mindful of any internal components that may shift or fall out.

Inside, you’ll find the old battery that needs replacing. Take note of its orientation before removing it. Some key fobs have the battery secured in place with a clip, while others may have it simply resting in a slot.

Before proceeding, double-check the battery type needed for your specific key fob model. It’s crucial to use the correct battery to ensure optimal performance.

Once you have safely accessed the battery, you’re ready to move on to the next step in the battery replacement process.

Replace the Battery

When it comes to replacing the battery in your Hyundai key fob, the process may seem daunting, but it’s actually quite straightforward. Here’s a simple guide to help you through the replacement steps:

  • Find a replacement battery specific to your Hyundai key fob model.
  • Use a precision screwdriver to carefully open the key fob.
  • Avoid forcing the key fob open to prevent damaging the casing.
  • Handle the internal components with care.
  • Take note of the old battery’s orientation before removing it.

Click here to preview your posts with PRO themes ››

Remember, always double-check the battery type required for your specific key fob model to ensure optimal performance.

Let’s dive into the key steps to successfully replace the battery and keep your Hyundai key fob working smoothly.

Test the Key Fob

When the battery replacement is complete, it’s crucial to Test the Key Fob to ensure everything is functioning correctly. Here’s how you can do it:

  • Press Buttons: Test all the buttons on the key fob to see if they respond as they should.
  • Check Range: Move a few steps away from your car and test if the key fob works within the specified range.
  • Re-sync if Needed: If the key fob doesn’t work after the battery replacement, try re-syncing it with your vehicle according to the manufacturer’s instructions.
Key Fob Testing Tips
Test all buttons
Check the range
Re-sync if needed


You now have all the essential steps to successfully change the battery in your Hyundai key fob. By following the guide provided, you can easily replace the battery and ensure that your key fob functions optimally. Remember to handle the internal components with care and pay attention to the battery’s orientation. Testing the key fob after replacing the battery is crucial to confirm that all buttons work correctly and the range is adequate. Make sure to refer to the manufacturer’s instructions for any additional steps needed to re-sync the key fob. With these simple steps, you can maintain the efficiency of your Hyundai key fob and avoid any inconveniences related to a drained battery.

Click here to preview your posts with PRO themes ››

Frequently Asked Questions

What supplies do I need to replace the battery in my Hyundai key fob?

You will need a replacement battery specific to your Hyundai key fob model and a precision screwdriver to open the key fob.

How do I replace the battery in my Hyundai key fob?

Use a precision screwdriver to carefully open the key fob, replace the old battery with the new one ensuring the correct orientation, and then close the key fob securely.

Why is it important to double-check the battery type for my key fob model?

Double-checking ensures the correct battery type is used, which is crucial for optimal performance of your Hyundai key fob.

What should I do after replacing the battery in my Hyundai key fob?

Test the key fob by checking all buttons, verifying the range, and re-syncing if necessary following the manufacturer’s instructions.

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