Key fobs are incredibly convenient until they stop working. If your Kia key fob is starting to feel unresponsive or has completely died, the most common culprit is a dead battery. Fortunately, changing the battery in your Kia key fob is a straightforward process you can easily do yourself at home. This guide will walk you through the simple steps to replace your Kia key fob battery and get you back on the road quickly.
There are two main types of Kia key fobs: the folding key and the smart key. While they look slightly different, the battery replacement process is very similar for both. Both types typically use a 3-volt lithium CR2032 battery, which is widely available at most drugstores, supermarkets, and online retailers. A single battery should last you several years under normal use.
Let’s get started on how to replace the battery in your Kia key fob.
First, let’s identify the type of key fob you have.
Folding Key
The folding key has a physical key blade that folds into the fob body. This type is common in older Kia models.
Smart Key
The smart key is typically a more rectangular shape and often features buttons on the side. These are common in newer Kia vehicles and support features like keyless entry and push-button start.
Steps to Change Your Kia Key Fob Battery
Regardless of whether you have a folding key or a smart key, the steps to replace the battery are generally the same:
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Open the Key Fob Casing: Locate a small slot on your key fob. Using a slim tool, like a small flathead screwdriver or even the tip of your car key, gently insert it into the slot and carefully pry open the key fob cover. Take your time and avoid applying excessive force to prevent damaging the plastic casing.
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Access the Battery: For folding keys, you may see a small retaining screw securing the battery cover. If present, loosen this screw with a small Phillips head screwdriver and then remove the battery cover. Smart keys may not have this screw, and the battery compartment will be accessible once the casing is opened.
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Remove the Old Battery: Carefully remove the old CR2032 battery. Note the orientation of the battery (positive side up or down) before removing it. This will ensure you install the new battery correctly.
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Insert the New Battery: Install the new CR2032 battery, making sure to match the correct polarity (positive side in the same orientation as the old battery). Push the battery firmly into place until it is securely seated in the battery holder.
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Reassemble the Key Fob: Carefully reattach the battery cover if you removed one and snap the key fob casing back together. Ensure that the casing is fully closed and securely fastened.
Important Warnings and Cautions
While changing your Kia key fob battery is a simple task, it’s important to be aware of these safety warnings and cautions:
WARNING: BUTTON BATTERY HAZARD
Kia key fobs use lithium button batteries. These small batteries pose a serious hazard if swallowed. If a lithium button battery is swallowed, it can cause severe internal burns and even death within just two hours. Always keep new and used batteries out of reach of children. If you suspect a battery has been swallowed, seek immediate medical attention.
CAUTION:
- Handle with Care: Key fobs are electronic devices and can be sensitive to moisture and static electricity. Avoid exposing your key fob to water or extreme humidity.
- Use the Correct Battery: Always replace your Kia key fob battery with the correct type, which is a CR2032 3-volt lithium battery. Using the wrong type of battery can cause your key fob to malfunction or even damage it.
- Avoid Damage: To prevent damage to your key fob, avoid dropping it, getting it wet, or exposing it to extreme heat or direct sunlight.
- Proper Battery Disposal: Dispose of used batteries responsibly according to your local regulations. Improper disposal can be harmful to the environment and human health.
If you are uncomfortable changing the battery yourself or encounter any issues, Kia recommends visiting an authorized Kia dealer or service partner for battery replacement. However, by following these simple steps, you can confidently change your Kia key fob battery and restore full functionality to your keyless entry system.
