Tesla key fobs, under normal usage, are designed to last approximately one year before the battery needs replacing. The lifespan can vary depending on the key fob version and specific vehicle settings. When your key fob battery is running low, your Tesla touchscreen will display a message alerting you to this. Replacing the battery in your Tesla key fob is a straightforward process that you can easily do yourself. This guide will walk you through each step to open your Tesla key fob and replace the battery.
To begin the battery replacement, place your Tesla key fob button side down on a soft surface to protect it from scratches. You’ll need a small flat-bladed tool to release the bottom cover of the key fob. Gently insert the flat-bladed tool into the seam of the key fob and carefully release the bottom cover.
Once the bottom cover is released, you will see the battery. To remove the old battery, gently lift it away from the retaining clips that hold it in place. Take note of the battery orientation; typically, it’s a CR2032 type battery with the ‘+’ side facing up.
When inserting the new CR2032 battery, ensure the ‘+’ side is facing up and avoid touching the flat surfaces of the battery as much as possible. It’s advisable to wipe the new battery clean before installation to remove any potential finger oils, which can shorten battery life. CR2032 batteries are widely available at retailers selling batteries.
After inserting the new battery, align the tabs on the bottom cover with the corresponding slots on the key fob. Holding the cover at an angle can help with alignment. Then, press the cover firmly back onto the key fob until it snaps securely into place.
Finally, test your Tesla key fob to ensure it’s working correctly. Try unlocking and locking your Tesla Model 3 to confirm the new battery is functioning and the key fob is operating as expected.
It is important to remember that key fob batteries pose a chemical burn hazard and should never be swallowed. Tesla key fobs use a coin cell battery, which can cause severe internal burns within just two hours if ingested, potentially leading to death. Always keep both new and used batteries out of reach of children. If the battery compartment does not close properly, discontinue use and keep it away from children. In case of suspected battery ingestion or insertion into any body part, seek immediate medical attention.
