Is your 2021 GMC key fob not working as reliably as it used to? Perhaps you’ve noticed you need to be closer to your vehicle for it to respond, or maybe it’s stopped working altogether. The most likely culprit is a dead battery. Fortunately, replacing the battery in your 2021 GMC key fob is a straightforward process you can easily handle yourself with just a few simple tools. This guide will walk you through each step of the 2021 Gmc Key Fob Battery Replacement, saving you time and potentially a trip to the dealership.
Most 2021 GMC key fobs are powered by a common and readily available 3-volt CR2032 battery. These batteries are designed to last for several years, typically three to four, depending on usage. When the time comes for a replacement, you won’t need to search far and wide. CR2032 batteries are stocked at most drugstores, supermarkets, hardware stores, and online retailers. You might even consider purchasing a multi-pack to have spares on hand for future replacements.
To complete your 2021 GMC key fob battery replacement, you’ll only need two simple tools:
- A new CR2032 battery: Ensure it’s fresh for optimal performance.
- A small flathead screwdriver: This will be used to gently open the key fob casing.
Now, let’s get started with the battery replacement process:
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Locate the small notch: Examine your 2021 GMC key fob. You’ll find a small notch, usually on the side or bottom of the key fob casing. This is where you’ll insert the flathead screwdriver to begin opening it.
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Carefully pry open the casing: Insert the tip of your flathead screwdriver into the notch. Gently twist the screwdriver to pry the key fob casing apart. Avoid using excessive force, as you could damage the plastic housing. Work your way around the seam if necessary, gently separating the two halves of the key fob.
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Access the battery: Once the casing is open, you’ll see the circuit board and the battery. The CR2032 battery will be visible and easily accessible.
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Note the battery orientation: Before removing the old battery, take a quick look at how it’s positioned. Pay attention to which side is facing up (positive or negative). Usually, the positive (+) side faces upwards, often towards the back cover of the key fob. This is important to ensure you install the new battery correctly.
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Remove the old battery: Gently remove the dead CR2032 battery. You can often do this with your fingertip or use the very tip of the flathead screwdriver to nudge it out if it’s snug.
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Insert the new battery: Take your new CR2032 battery and install it in the same orientation as the old one you just removed. Make sure the positive (+) side is facing the correct direction, as noted in step 4. Press down gently to ensure it’s securely in place.
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Reassemble the key fob: Carefully align the two halves of the key fob casing. Snap them back together, pressing firmly until you hear or feel them click securely into place. Ensure there are no gaps and the casing is fully closed.
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Test your key fob: Now, test your 2021 GMC key fob to see if it’s working. Try locking and unlocking your doors, starting your vehicle remotely (if applicable), and using any other functions your key fob offers. In most cases, with a fresh battery, your key fob should be back to working perfectly.
In the vast majority of situations, replacing the battery will resolve issues with your 2021 GMC key fob. However, if you’ve replaced the battery and your key fob is still not functioning correctly, there might be another underlying problem. This could be an issue with the key fob itself or with your vehicle’s receiver system.
If you continue to experience problems after a 2021 GMC key fob battery replacement, it’s recommended to seek professional assistance. Contact your local GMC dealership’s service department. Their certified technicians have the expertise and diagnostic tools to accurately identify and resolve any key fob or vehicle electronic issues. They can determine if the problem lies within the key fob, the vehicle’s receiver, or if there’s another electrical problem at play. Don’t hesitate to reach out to ensure your 2021 GMC and its key fob are working reliably.
