October 5

How Do I Replace The Battery In My Hyundai Key Fob?

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Hyundai has always been a pioneer in incorporating advanced technologies into their vehicles for the convenience of their customers. One such technology is the Hyundai key fob, a small remote control that allows you to unlock and start your car without the need for a traditional key. But what happens when your Hyundai key fob suddenly stops working?

There’s no need to worry. The battery likely needs to be replaced, and fortunately, it’s a simple task you can do yourself. Our team at Huffines Hyundai Plano has made this comprehensive guide on how to open your Hyundai key fob and replace its battery.

Understanding Your Hyundai Key Fob

Before delving into how to replace the battery in your Hyundai key fob, it’s important to understand what it is and how it works. A key fob is an electronic device that uses radio waves to communicate with your car. It’s programmed to synchronize with your vehicle’s engine control unit, allowing you to perform various functions such as locking and unlocking doors or starting your car remotely.

Hyundai takes this convenience a step further with its advanced Digital Key technology. If you’re an Android user, you can use your smartphone to access and start your vehicle through an official app from Hyundai — no physical keys required. This innovative feature is expected to be available for iPhone users soon.

Identifying When Your Hyundai Key Fob Battery Needs Replacement

Knowing the signs that your key fob battery needs replacement can save you from unexpected hassles. There are some indicators that it’s time to change your Hyundai key fob battery.

Decreased Range of Operation

One of the first signs that your Hyundai key fob battery is nearing its end is a significant decrease in its operating range. If you find that you need to be closer to your car for the key fob to work, it’s a strong hint that the battery might be running low on power.

Inconsistent or Failed Lock and Unlock Function

Another common sign of a weak or dying battery is inconsistent operation. If your key fob occasionally fails to lock or unlock your car, despite being within range, it could mean the battery doesn’t have enough power left to send a strong signal.

Nonresponsive Start Button

One of the best features of a Hyundai key fob is its ability to start your car remotely. But if you press the start button on your key fob and the car doesn’t respond as usual, this could be another indication that the battery needs replacement. Please note that while this symptom usually points toward a drained battery, it could also suggest other issues with your key fob or vehicle.

Monitoring these signs and replacing your Hyundai key fob battery proactively can ensure the uninterrupted convenience and security this nifty device provides.

Replacing Your Hyundai Key Fob Battery

Replacing a dead Hyundai key fob battery is easier than you might think. Here are the step-by-step instructions:

  1. Remove the metal key: The first step is to remove the key from your Hyundai key fob. There’s a small lever or button on the back of your key fob — slide or press it to release the metal key.
  2. Open your Hyundai key fob: Next, locate the slot on the side or bottom of your key fob, where you’ll insert the metal key, then turn it gently as if you’re starting your car’s ignition, and the case should pop open. Remember, keep the buttons facing down when opening to prevent them from falling out.
  3. Remove the old battery: Once opened, you’ll see a circular battery in the center of your key fob — this is what you’re replacing. Simply lift it out with your fingers or a small flathead screwdriver.
  4. Insert the new battery: Purchase a new CR2032 battery, which is standard for most Hyundai key fobs. Place it into the battery compartment with the plus side facing down.
  5. Reassemble your Hyundai key fob: After you’ve inserted the new battery, it’s time to put everything back together. Align both halves of your key fob and press them until they click into place, and remember to reinsert your metal key.

Caring For Your Hyundai Key Fob

Just like any electronic device, your Hyundai key fob requires some care and attention to ensure it functions optimally and lasts a long time. Here are some tips on how to properly maintain your key fob:

  • Handle with care: Though key fobs are built to be durable, they aren’t indestructible. Avoid dropping your key fob or knocking it against hard surfaces, as this can damage the internal components and affect its performance.
  • Keep away from liquids: Water and other liquids can cause irreversible damage to electronic devices, including your key fob. If you happen to spill something on your key fob or drop it in water, dry it thoroughly as soon as possible.
  • Change the battery regularly: Even if you haven’t noticed any performance issues, it’s a good practice to replace the battery in your Hyundai key fob every 1-2 years. This ensures that your key fob always has enough power to operate effectively and reduces the chances of being caught off guard by a dead battery.
  • Avoid exposure to extreme temperatures: Extreme cold or hot temperatures can affect the life span and performance of your Hyundai key fob battery. Avoid leaving your key fob in direct sunlight during summer or in freezing conditions during winter.

What If Your Hyundai Key Fob Still Doesn’t Work?

If you’ve replaced the battery but your key fob still isn’t working, it might be time to visit our service center. Our factory-trained technicians use advanced automotive maintenance and repair equipment to solve any issues with your Hyundai key fob. If a replacement is necessary, we also have a well-stocked parts department with original Hyundai parts.

Wrapping Up: The Hyundai Key Fob Battery Replacement Process

Hyundai’s dedication to customer convenience is evident in technologies such as the key fob and Digital Key. But even with the best of care, you’ll need to replace your key fob battery now and then. Luckily, changing your Hyundai key fob battery is a simple process that you can do on your own. And remember, if you run into any issues, our award-winning service center team at Huffines Hyundai Plano is always ready to help.


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