Is your 2011 Hyundai Elantra key fob starting to act up? Finding yourself pressing the buttons multiple times to lock or unlock your doors? The issue is likely a low battery in your key fob. Don’t worry, replacing the battery in your 2011 Hyundai Elantra key fob is a simple task you can do yourself, saving you time and a trip to the dealership. This guide will walk you through the process step-by-step.
Before we get to the battery replacement, let’s quickly touch upon your Elantra’s alarm system, as understanding how it works is helpful when dealing with key fob issues.
According to the owner’s manual, your 2011 Hyundai Elantra’s alarm system is designed to activate in these situations when the system is armed and you are outside the vehicle:
- Opening a front or rear door without using your key fob remote or the physical ignition key in the door.
- Opening the trunk lid or tailgate without using your key fob remote or the physical ignition key.
- Opening the hood of your Elantra.
If the alarm is triggered, the siren will sound, and the turn signal lights will flash for approximately 30 seconds, repeating up to three times. To disarm the system, simply unlock the door or trunk using your key fob remote or the ignition key. While the manual suggests using the ignition key in the door lock won’t trigger the alarm, in practice, using the physical key to unlock the door might still set off the alarm. If this happens, try starting your Hyundai Elantra with the ignition key – this should silence the alarm.
Now, back to the main point: replacing your key fob battery. The owner’s manual clearly indicates when it’s time for a new battery:
When the transmitter’s battery becomes weak, it may take several pushes on the button to lock or unlock the doors, and the LED will not light. Replace the battery as soon as possible.
This is your signal! Luckily, the battery you need is readily available and inexpensive.
What type of battery does a 2011 Hyundai Elantra key fob use?
Your 2011 Hyundai Elantra key fob uses a CR2032 battery. This is a common type of coin cell battery that you can find at most drugstores, supermarkets, and online retailers.
How to replace the battery in your 2011 Hyundai Elantra key fob:
Replacing the battery is straightforward. Here’s how to do it:
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Locate the notch: On the side of your key fob, you’ll find a small notch. This is where you’ll begin to open the case.
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Carefully pry open the case: Using a small flathead screwdriver (like a blade screwdriver as shown in the image), gently insert the tip into the notch. Twist the screwdriver carefully to separate the two halves of the key fob case. Be gentle to avoid damaging the plastic casing.
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Remove the old battery: Once the case is open, you’ll see the CR2032 battery. Take note of the battery’s polarity – the positive (+) side and the negative (-) side. Usually, the positive side is facing down. Carefully remove the old battery. You may be able to gently pry it out with your small screwdriver or use your fingernail.
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Insert the new battery: Take your new CR2032 battery and ensure you insert it with the correct polarity. The positive (+) side should be facing down, just like the old battery. Push the new battery firmly into place.
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Reassemble the key fob: Carefully snap the two halves of the key fob case back together. Ensure they are firmly closed and securely fastened. You should hear a click as they rejoin.
That’s it! You’ve successfully replaced the battery in your 2011 Hyundai Elantra key fob.
Important Note: No Reprogramming Needed
Unlike some car brands, like Audi, you do not need to reprogram your 2011 Hyundai Elantra key fob after replacing the battery. Once you’ve installed the new battery, your key fob should work immediately.
In conclusion, replacing the 2011 Hyundai Elantra Key Fob Battery is a quick and easy maintenance task. By following these simple steps, you can restore your key fob’s functionality and avoid any alarm system surprises. Keep a spare CR2032 battery handy, and you’ll be prepared to keep your Hyundai Elantra key fob working perfectly.
