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Tesla key fob battery
Tesla key fobs for the Model S, 3, X and Y use a CR2032; Tesla key cards have no battery.
| Battery | Used in | Size | Capacity |
|---|---|---|---|
| CR2032 | Tesla (most common) | 20 mm × 3.2 mm | ≈ 225 mAh |
Tesla: starting with a dead fob
Use the Tesla app or the key card: tap the card on the console reader behind the cup holders, then press the brake to drive.
To change it: release and pull out the metal key, twist its tip in the seam to split the case, and fit the new cell the same way up. Step-by-step guide.
Also mainly CR2032: Toyota, Lexus, Honda, Acura.
Key types change between model years; the code on your old battery is final.