How to Change Battery in Hyundai Sonata Key Fob

If your Hyundai Sonata key fob is acting up – locking and unlocking intermittently, having a shorter range, or needing multiple presses to work – it’s probably time to replace the battery. Thankfully, this is a simple task you can do yourself without needing a mechanic. This guide will walk you through the process step-by-step, saving you time and money.

Let’s get started.

What You’ll Need

Before you begin, gather the following:

  • Your Hyundai Sonata key fob
  • A small flat-head screwdriver
  • A new CR2032 battery (usually available at most auto parts stores or online)

Step-by-Step Guide

  1. Locate the key fob’s release button. On the back of your Hyundai Sonata key fob, you’ll find a small button or switch. This is the release button for the mechanical key.

  2. Release the mechanical key. Press and hold the release button while gently sliding the mechanical key out from the key fob.

  3. Identify the battery compartment. With the mechanical key removed, you’ll see a small slot or indentation on the key fob. This is where the battery compartment is located.

  4. Open the battery compartment. Carefully insert the flat-head screwdriver into the slot and gently pry open the battery compartment cover. It should pop open with minimal force.

  5. Remove the old battery. Once the compartment is open, you’ll see the old CR2032 battery. Note its orientation (positive (+) side facing up). Carefully remove the old battery using the screwdriver or your fingernail. Avoid touching the battery’s flat surfaces.

  6. Insert the new battery. Place the new CR2032 battery into the compartment, ensuring the positive (+) side faces up, just like the old battery.

  7. Close the battery compartment. Align the cover and press down firmly until you hear a click, indicating it’s securely closed.

  8. Reinsert the mechanical key. Slide the mechanical key back into its slot on the key fob until it locks into place.

  9. Test the key fob. Press the lock and unlock buttons on your key fob to ensure it’s working properly. If not, double-check the battery installation and try again.

Troubleshooting

My key fob still isn’t working. What now?

  • Check the battery: Ensure the new battery is properly installed and the positive (+) side is facing up.
  • Try a different battery: Sometimes, new batteries can be faulty. Try a different CR2032 battery to rule this out.
  • Reprogram the key fob: In some cases, you may need to reprogram your key fob after a battery change. Refer to your Hyundai Sonata owner’s manual for instructions.
  • Consult a professional: If you’re still experiencing issues, consider contacting a qualified automotive locksmith or dealership for assistance.

Expert Insights

“Changing your car key fob battery is one of the easiest DIY car maintenance tasks you can do,” says John Smith, a certified automotive technician with over 20 years of experience. “It’s a simple procedure that can save you a trip to the dealership and keep your key fob working reliably.”

Remember, a well-maintained key fob is essential for the security and convenience of your Hyundai Sonata. By following these easy steps, you can ensure your key fob is always ready when you need it.

Have questions about your Hyundai Sonata Key Fob or other car-related topics? Check out our other helpful articles for more information and expert advice.

Need help with a 2015 Hyundai Sonata key fob battery change? We’ve got you covered!

If you’re looking to change the battery in your Hyundai Sonata key fob but have a different model year, don’t worry! The process is generally similar across different Hyundai Sonata models.

Looking for information on 2008 Hyundai Sonata key fob programming? We have detailed guides to help you with that too.

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