The standard battery for a 2014 Honda Accord key fob is a CR2032 3-volt coin cell.
In some markets or for certain fob variants, a CR2025 may be used. Battery size can vary if the fob has been replaced or updated. Always verify by inspecting the actual battery in your fob or consulting the owner's manual or a dealer if you're unsure.
Common battery sizes used in this model
The vast majority of 2014 Accord key fobs use the CR2032 coin cell, but CR2025 can appear in some regional or older replacement fobs. Confirm the exact size before purchasing a replacement.
- CR2032 — 3V coin cell, the most widely used in 2014 Honda Accord remotes.
- CR2025 — 3V coin cell, less common for this specific model but possible in some variants.
Knowing the precise size helps ensure compatibility and prevents damage to the fob’s electronics.
How to replace the key fob battery
Follow these steps to replace the battery safely and ensure the fob functions properly after replacement.
- Turn the fob over and locate the seam along the edge. Use a small flathead screwdriver or a dedicated plastic pry tool to gently separate the two halves. Do this slowly to avoid cracking the shell.
- Carefully lift off the top cover to expose the battery compartment.
- Note the orientation of the existing battery (the positive side is typically facing up). Remove the old battery with a non-metal tool if needed.
- Insert the new battery (CR2032 or CR2025, depending on your fob) with the correct polarity. Ensure it sits flat and makes good contact with the springs.
- Snap the fob halves back together and press around the seam to reseal.
- Test the remote from a normal distance by pressing the lock/unlock or trunk buttons to confirm proper operation.
If the fob does not respond after replacement, recheck the battery orientation and size, ensure the battery is seated fully, and verify the remote casing is properly closed. If problems persist, contact a Honda dealer or automotive locksmith for a diagnostic check.
Tips and cautions
Handle the fob gently to avoid damaging internal components. Avoid touching the battery contacts with metal objects and keep the device dry and away from extreme temperatures. If your fob has a protective cover or ring, reassemble carefully to maintain its integrity and any waterproofing features.
Summary: For a 2014 Honda Accord key fob, CR2032 3V is the standard battery, with CR2025 as a possible alternative in some cases. Confirm the correct size by inspecting your current battery or the owner's manual, then replace carefully and test the fob. When in doubt, seek assistance from a dealer or automotive locksmith.


