Like any electronic device, your Tesla key fob relies on a battery to function, ensuring you can effortlessly access and control your vehicle. Typically, under normal usage, this battery is designed to last up to a year. However, various factors such as key fob version and specific vehicle settings can influence its lifespan. When your key fob battery begins to weaken, your Tesla will alert you with a message displayed directly on the touchscreen, signaling it’s time for a replacement.
Replacing the battery in your Tesla key fob is a straightforward process that you can easily handle yourself. Here’s a step-by-step guide to ensure a smooth and safe battery replacement.
Step-by-Step Tesla Key Fob Battery Replacement
Step 1: Accessing the Battery Compartment
Begin by placing your key fob button side down on a soft, protective surface to prevent any scratches. Locate the bottom cover of the fob. Using a small, flat-bladed tool, carefully release and detach this bottom cover. Gentle prying is usually sufficient; avoid applying excessive force to prevent damage to the fob casing.
Step 2: Removing the Old Battery
Once the bottom cover is removed, you’ll see the battery. Gently remove the old battery by lifting it away from the retaining clips that hold it in place. Note the orientation of the battery before removal, specifically which side is facing upwards, to ensure correct installation of the new battery.
Step 3: Installing the New CR2032 Battery
For your Tesla key fob, you’ll need a CR2032 battery. This type of battery is widely available at most retailers selling batteries. When inserting the new battery, ensure the ‘+’ side is facing upwards, matching the orientation of the battery you just removed. It’s crucial to avoid touching the flat surfaces of the battery with your fingers. Ideally, wipe the battery clean before installation to remove any potential oils or contaminants, as fingerprints can reduce battery life.
Step 4: Reassembling the Key Fob
With the new battery correctly installed, it’s time to reassemble the key fob. Hold the bottom cover at a slight angle and align the tabs on the cover with the corresponding slots on the key fob body. Once aligned, firmly press the cover back onto the key fob until you hear and feel it snap securely into place. Ensure that the cover is fully closed and flush with the rest of the key fob casing.
Step 5: Testing the Key Fob
After reassembly, test the functionality of your Tesla key fob. Do this by attempting to unlock and then lock your Tesla Model 3. If the car responds as expected, you’ve successfully replaced the battery. If not, re-check the battery orientation and ensure all steps were followed correctly.
Important Safety Precaution
It’s critical to be aware that key fob batteries pose a chemical burn hazard if mishandled or ingested. Tesla key fobs utilize a coin cell battery. If a coin cell battery is swallowed, it can cause severe internal burns within a very short timeframe – as little as two hours – and can be fatal. Therefore, always keep both new and used batteries out of reach of children. If the battery compartment on your key fob does not close securely, discontinue use and keep it away from children. In the event you suspect a battery may have been swallowed or placed inside any part of the body, seek immediate medical attention.
By following these steps, you can confidently replace your Tesla key fob battery and maintain seamless access to your vehicle.
