The 2013 Honda Accord key fob typically uses a CR2032 3-volt lithium coin cell.
In most markets, this is the standard battery for the remote, providing reliable power in a compact format. Some rare variations or regional models may use a CR2025, so you should confirm by opening the fob or checking your owner's manual or vehicle documentation.
Battery type and confirmation
The key fob battery is most commonly a CR2032 coin cell. Some variations or regional models may use a CR2025 instead; to be certain, remove the fob cover and inspect the battery size printed on the battery itself, or compare with a new CR2032 to see which fits properly.
In practice, the CR2032 will fit securely and deliver reliable operation. If the fob still doesn’t respond after replacement, double-check the battery orientation and ensure the contact points are clean.
Before attempting a replacement, verify the exact battery size for your specific fob by consulting the manual or your dealer if you’re unsure.
Replacing the battery
What you’ll need to replace the fob battery
- Replacement CR2032 battery (3V)
- Tools to pry open the fob (a small flat screwdriver or a fingernail will usually work)
With these items on hand, you can proceed to the replacement steps.
Follow these steps to replace the battery
- Locate the seam on the back of the key fob and pry open the cover using a small flat tool or your fingernail. If there’s a mechanical key, remove it first to gain easier access to the case.
- Carefully remove the old battery, noting the orientation (which side is facing up).
- Insert the new CR2032 battery with the correct orientation (positive side usually facing up, though check your fob’s contacts).
- Snap the back cover back into place and reinsert the mechanical key if you removed it.
- Test the fob by pressing a button (lock/unlock/panic) to ensure it’s functioning properly.
After replacing the battery, if the fob still doesn’t work, check that the battery is seated correctly, the contact points are clean, and the key fob isn’t damaged. If issues persist, visit a Honda dealer or a reputable locksmith for assistance.
Tips and considerations
Store spare CR2032 batteries in a cool, dry place and avoid touching the battery contacts with bare metal to reduce corrosion. If you regularly replace the fob battery, consider inspecting the fob housing for wear and tear and replacing the shell if needed to prevent future issues.
Summary
For a 2013 Honda Accord, the standard key fob battery is the CR2032 3V coin cell, with CR2025 as a possible, rarer alternative in some variants. Replacing the battery is a straightforward process that involves opening the fob, swapping in a new CR2032 with proper orientation, and testing the remote function. Keeping spare batteries on hand and following careful handling tips will help maintain reliable fob performance.