The most common battery for a Honda CR-V key fob is the CR2032 3-volt lithium coin cell.
In practice, the exact battery can vary by generation and fob design. The CR2032 is the standard for modern CR-V remotes, but some older or alternate designs may use a CR2025. If you're unsure, check the back of the fob, refer to the owner's manual, or contact a Honda dealership to confirm the correct type before purchasing a replacement. Bringing the old battery to a store can also help ensure you get the right size.
Common battery type for Honda CR-V key fobs
A quick overview of which coin cells are most often found in CR-V remotes, with CR2032 as the baseline for recent models.
- CR2032 3V lithium coin cell is the standard for most Honda CR-V key fobs in recent generations (roughly 2012 onward, including the 2017–2023 models).
- CR2025 3V lithium coin cell may appear in some older or slimmer fob designs used in certain markets or trims.
When replacing, opt for a fresh CR2032 if possible, as it provides reliable power and broad availability. If your fob uses a different size, verify the exact type before purchasing a replacement.
How to identify and replace the battery
Identify the correct battery for your fob
Inspect the back cover of your key fob for a battery size indication, or consult the owner's manual. If documentation isn’t available, a Honda dealer or certified locksmith can identify the correct battery by model year or by examining the fob itself.
Steps to replace the battery
Before you begin, ensure you have a small flat tool and the correct replacement battery. Follow these steps carefully to avoid damaging the fob.
- Flip the fob over and locate the seam where the two halves meet. Use a small flat tool to gently pry the case apart, or use the release slot if present.
- Note the orientation of the existing battery; the plus (+) side typically faces up.
- Remove the old battery and dispose of it properly.
- Insert the new CR2032 (or the correct size for your fob) with the correct polarity (+ up).
- Snap the fob halves back together and test the remote to ensure it works.
Replacing the battery is usually straightforward and should restore keyless entry range promptly. If the fob remains unresponsive after replacement, you may need to re-sync the fob with the car according to the owner's manual or seek assistance from a dealer.
Where to buy and when to seek help
CR2032 batteries are widely available at supermarkets, electronics stores, and auto parts shops. If you’re uncertain about the correct type, a Honda dealership or certified locksmith can replace the battery for you and verify the fob’s programming and function.
Summary
For most Honda CR-V models, the key fob uses a CR2032 3-volt lithium coin cell. While CR2025 may appear in some older or alternate designs, CR2032 is the standard for modern remotes. Always verify the exact battery type before replacing, and follow proper replacement steps to avoid damaging the fob. If in doubt, consult your owner's manual or a Honda service professional.