Toyota Key Fob Battery Replacement
CR2032 on almost every Toyota smart key — the shortest replacement on this list.
Toyota smart keys overwhelmingly run one cell: CR2032. The fob splits at the side seam with no screws on most models — a flat tool and sixty seconds. Older flip keys sometimes take CR2025.
Common batteries for this brand
Model year and trim vary — always match the stamped number on your old battery.
FAQ
Which battery does a Toyota key fob take?
CR2032 on the vast majority of smart keys; check the stamped number regardless.
How do I open a Toyota fob?
Some models have a physical key release; most split at the seam. No screws on common models.
Do I need to reprogram after replacing?
Usually no — the cell swap alone restores the fob. Re-pair only if it fails.
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