In most cases, Honda key fobs use a CR2032 3-volt lithium coin cell. Some older or smaller remotes may require a CR2025 or other coin cells. Always verify your specific model and year.
Common battery types used in Honda key fobs
The vast majority of modern Honda remotes rely on standard 3-volt coin cells. The following types are the ones you’re most likely to encounter.
- CR2032 — 3V lithium coin cell (the most common choice for contemporary Honda key fobs)
- CR2025 — 3V lithium coin cell (found in some older or slimmer fob designs)
- CR1616 — 3V lithium coin cell (used in a few older, compact remote formats)
Note: Battery type can vary by model and year. If in doubt, check the fob’s back cover, the owner’s manual, or contact a Honda dealer for your exact model.
How to confirm and replace the battery safely
To ensure you replace the correct battery and keep the fob functioning, follow these steps. The guidance applies to most Honda key fobs, but always verify against your specific device.
- Inspect the back of the key fob or the battery compartment for the stamped battery type (e.g., CR2032) or an indication of the size.
- Use a small flat tool to gently pry open the fob housing; avoid forcing parts or damaging seals.
- Remove the old battery, noting the orientation (which side is facing up). Install the new battery with the correct polarity matching the markings inside the compartment.
- Test the fob to confirm functions such as locking/unlocking doors and, if applicable, trunk release or panic button.
- Dispose of the old battery responsibly at an appropriate recycling or hazardous-waste facility.
If the fob still doesn’t work after replacement, double-check the model/year compatibility and consider consulting a Honda dealership or certified locksmith for a diagnostic check.
Summary
Most Honda key fobs today use a CR2032 3V coin cell, with CR2025 or CR1616 appearing in some older or smaller designs. Always confirm the exact type by inspecting the fob, consulting the owner’s manual, or contacting a dealer. When replacing, handle the battery carefully, install it in the correct orientation, and test the fob to ensure full functionality.