How To Change Battery In Hyundai Elantra Key Fob

How To Change Battery In Hyundai Elantra Key Fob

If you’ve been using your Hyundai Elantra for a long time, you should know how important a functioning key fob is to your car. It provides convenience and security by locking and unlocking doors, starting the engine, and opening the trunk. However, nothing lasts forever, and eventually, you’ll need to replace the battery.

Changing the battery in your Hyundai Elantra key fob isn’t hard work, even if you’re not a mechanic. In this article, we will go over the necessary steps to replace your Hyundai Elantra key fob’s battery.

Gather Your Materials

Before anything else, make sure you’ve gathered all the necessary materials to change the battery successfully. Here’s a list of what you’ll need:

  • Replacement Battery (CR2032)
  • Flathead Screwdriver (precision)
  • Hyundai Elantra Key Fob

Steps to Change the Battery in Your Hyundai Elantra Key Fob

Now that you’ve assembled the required materials, follow these steps to change the battery in your Hyundai Elantra key fob:

Step 1

First off, locate the sliding switch on the back of the key fob. Shift the slider from the Locked position to the Open position. This will reveal the key’s metal blade, which now you can use to open the key fob’s case with a flathead precision screwdriver.

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Step 2

Locate and carefully pry the case’s two halves apart. After that, you should spot the battery compartment.

Step 3

Using your flathead precision screwdriver, take out the dead battery by carefully releasing it from the compartment’s catch.

Step 4

Now place the new battery into the battery compartment, with the positive side facing up. Once it’s secure, you can then close the key fob casing.

Step 5

To double-check that you’ve done it correctly, you can now insert the key into the ignition and turn it on. The key fob should now function correctly.


What type of battery do I need?

The Hyundai Elantra key fob battery is CR2032. You can purchase it from most general-purpose or automobile stores.

Will I need to reprogram my key fob after changing the battery?

No, you won’t have to reprogram your key fob after changing the battery, as the car’s electronics will still recognize the key.

How long should a key fob battery last?

A key fob battery can last up to three years, depending on the model and usage.

Can I change the battery myself, or do I need professional help?

Yes, you can change the battery yourself; it’s quite easy to do. You don’t need the help of a professional, but you will need a flathead precision screwdriver to take out the old battery.


Changing the battery in your Hyundai Elantra key fob doesn’t have to be complicated or stressful. All you have to do is follow the steps outlined above, and you’ll have your key fob working correctly again in no time. Remember always to double-check that you’ve inserted the battery correctly and that the key fob functions correctly after changing the battery.

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