How to Replace the Battery in a Toyota Corolla Key Fob (2019 – 2021)

Introduction

Replacing the battery in your Toyota Corolla key fob is a simple and cost-effective way to ensure your key fob continues to function properly. In this guide, I will walk you through the process step-by-step. All you need is a flathead screwdriver and a CR2032 battery. Let’s get started!

Gather Your Tools

Before you begin, make sure you have the necessary tools and materials. You will need a flathead screwdriver and a CR2032 battery. If you don’t have these items, you can easily find them online or at your local hardware store.

• Flathead screwdriver
• CR2032 battery

Remove the Internal Key

First, locate the small switch at the bottom of your key fob. Hold down this switch and pull out the internal key. Set the key aside for now. This will expose the keyhole and a smaller hole next to it, which we will use to open the key fob.

Open the Key Fob

Insert your flathead screwdriver into the smaller hole adjacent to the keyhole. Hold the key fob loosely in your hand and twist the screwdriver. You should feel the key fob crack open. Once it is open, you can pull the two halves apart with your fingers.

Remove the Old Battery

With the key fob open, locate the battery. Use your flathead screwdriver to gently pry the battery out of its compartment. If your screwdriver is too large, you can use a smaller precision screwdriver or even a bent paperclip to remove the battery.

Insert the New Battery

Take your new CR2032 battery and make sure the positive side (marked with a plus sign) is facing up. Slide the battery into the compartment, ensuring it fits snugly under the two small plastic pieces. Press down gently until the battery clicks into place.

Reassemble the Key Fob

With the new battery in place, align the two halves of the key fob. Make sure the side with the silver buttons is facing up. Press the halves together until they click back into place. Finally, insert the internal key back into its slot.

Test the Key Fob

To ensure you have replaced the battery correctly, press a button on the key fob. If the indicator light comes on, you have successfully replaced the battery. Congratulations!

Conclusion

Replacing the battery in your Toyota Corolla key fob is a straightforward process that can save you time and money. By following these steps, you can easily perform the replacement at home. If you found this guide helpful, let me know in the comments or give this post a like.

FAQs

What type of battery does the Toyota Corolla key fob use?

The Toyota Corolla key fob uses a CR2032 battery.

Where can I buy a CR2032 battery?

You can purchase a CR2032 battery on Amazon or at your local hardware store.

What if my screwdriver is too large to remove the battery?

If your screwdriver is too large, you can use a smaller precision screwdriver or a bent paperclip to remove the battery.

How do I know if I inserted the battery correctly?

If the indicator light on your key fob comes on when you press a button, you have inserted the battery correctly.

Can I use this guide for other Toyota models?

This guide is specifically for Toyota Corolla models from 2019 to 2021. However, many Toyota key fobs use a similar process for battery replacement.

What should I do if my key fob still doesn’t work after replacing the battery?

If your key fob doesn’t work after replacing the battery, double-check to ensure the battery is inserted correctly. If it still doesn’t work, there may be an issue with the key fob itself, and you may need to consult a professional.

For more guides on replacing batteries in key fobs, you can visit this site.