What battery does a Tesla Model 3 key fob use?
The 2017-2025 Tesla Model 3 key fob uses a CR2032 3-volt lithium coin battery. This is a standard battery available at most grocery stores, pharmacies, and online retailers.
How do I know if my Tesla Model 3 key fob battery is dying?
Signs your Tesla Model 3 key fob battery is dying include: reduced range (having to get closer to unlock), intermittent button response, delayed unlocking, the low battery warning on your dashboard, or buttons requiring multiple presses to work.
How long does a Tesla Model 3 key fob battery last?
A Tesla Model 3 key fob battery typically lasts 2-4 years depending on usage. Frequent use, extreme temperatures, and proximity to electronic devices can shorten battery life.
Can I replace my Tesla Model 3 key fob battery myself?
Yes, replacing a Tesla Model 3 key fob battery is a simple DIY task that takes under 5 minutes. You only need a new CR2032 battery and optionally a small flathead screwdriver. No dealer visit or programming is required.
Do I need to reprogram my key fob after replacing the battery?
No, you do not need to reprogram your Tesla Model 3 key fob after replacing the battery. The fob retains its programming during battery changes. Simply insert the new battery and test the buttons.
Where can I buy a CR2032 battery?
CR2032 batteries are available at Walmart, Target, CVS, Walgreens, Amazon, auto parts stores like AutoZone and O'Reilly, and most grocery stores. They typically cost $6-12 for a 2-pack.
