Is your Tesla key fob not working as reliably as it used to? You might be seeing a message on your Tesla touchscreen indicating a low key fob battery. Don’t worry, replacing the battery in your Tesla key fob is a straightforward process you can easily do yourself. This guide will walk you through each step to get your key fob back in top shape.
Before we begin, it’s good to know that under normal use, a Tesla key fob battery typically lasts up to a year. Battery life can vary depending on the key fob version and your vehicle’s settings. When it’s time for a replacement, you’ll get a notification on your touchscreen, making it easy to stay ahead of any issues.
Here’s how to replace your Tesla key fob battery quickly and safely.
Tools You’ll Need
Before you start, gather these simple tools:
- A small flat-bladed tool (like a small screwdriver or a plastic trim removal tool)
- A new CR2032 battery
- A soft cloth (optional, for cleaning)
CR2032 batteries are widely available and can be purchased from most retailers that sell batteries, including drugstores, supermarkets, and online marketplaces.
Step-by-Step Guide to Replacing Your Tesla Key Fob Battery
Follow these steps to replace your Tesla key fob battery:
Step 1: Open the Key Fob Casing
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Place your Tesla key fob button side down on a soft, clean surface to protect it from scratches.
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Locate the bottom cover of the key fob.
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Use your small flat-bladed tool to gently release the bottom cover. Insert the tool into the small slot on the side of the key fob and carefully pry it open. The cover should detach easily.
Alt text: Releasing the bottom cover of the Tesla key fob using a flat-bladed tool to access the battery compartment.
Step 2: Remove the Old Battery
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Once the bottom cover is removed, you’ll see the battery.
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Carefully remove the old battery. You can gently lift it away from the retaining clips. If needed, use the flat-bladed tool to carefully assist in lifting the edge of the battery, but avoid damaging the clips or the key fob itself.
Alt text: Removing the CR2032 battery from the Tesla key fob by lifting it away from the retaining clips in the battery compartment.
Step 3: Install the New Battery
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Take your new CR2032 battery.
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Before installing, it’s recommended to wipe the battery clean with a soft cloth to remove any fingerprints. Avoid touching the flat surfaces of the battery with your fingers, as this can reduce its lifespan.
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Insert the new battery into the key fob with the ‘+’ side facing up. Ensure it slides under the retaining clips and is securely in place.
Alt text: Installing a new CR2032 battery into the Tesla key fob, ensuring the positive (+) side is facing upwards for correct polarity.
Step 4: Reassemble the Key Fob
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Take the bottom cover and hold it at a slight angle.
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Align the tabs on the cover with the corresponding slots on the key fob.
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Press the cover firmly onto the key fob until it snaps securely into place. You should hear a click, indicating it is properly closed.
Alt text: Reassembling the Tesla key fob by aligning the cover tabs with the slots and pressing firmly until it snaps closed.
Step 5: Test Your Key Fob
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Test that the key fob is working correctly by attempting to unlock and lock your Tesla Model 3.
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If the car responds as expected, you have successfully replaced the battery! If not, double-check that the battery is installed correctly with the ‘+’ side up and that the cover is fully snapped into place.
Important Safety Warnings
It’s crucial to handle key fob batteries with care:
- Chemical Burn Hazard: Tesla key fob batteries contain chemicals that can cause burns. They should never be ingested.
- Keep Away From Children: The key fob contains a small coin cell battery. If swallowed, it can cause severe internal burns within just two hours and can be fatal. Keep both new and used batteries away from children.
- Secure Battery Compartment: Always ensure the battery compartment is securely closed after replacement. If it doesn’t close properly, stop using the key fob and keep it away from children.
- Seek Immediate Medical Attention: If you suspect that a battery has been swallowed or placed inside any part of the body, seek immediate medical attention.
By following these steps, you can easily replace your Tesla key fob battery and ensure your key fob remains reliable. This simple maintenance task can save you time and keep you on the road without interruption.
