The 2018 Honda CR-V key fob uses a CR2032 3-volt coin cell battery.
This article explains the exact battery size, how to replace it, where to buy replacements, and tips to keep your fob working reliably. It covers typical CR-V remote designs, regional variations, and practical steps for a quick battery swap.
Battery size and compatibility
Understanding the correct battery size helps avoid buying the wrong part and ensures proper fit and function for the typical CR-V remote design used in 2018 models.
- Battery type: CR2032 3V coin cell
- Standard for the 2018 CR-V key fob in North America and most markets
- Some aftermarket or non-OEM remotes may use different sizes; verify by opening the fob or checking the owner's manual
- When replacing, ensure the battery is oriented with the positive (+) side facing up
In short, CR2032 is the standard size you should expect for the 2018 CR-V key fob in most regions. If in doubt, consult the owner's manual or your local Honda dealer for confirmation.
Replacing the battery
Follow these steps to replace the fob battery safely and correctly.
- Remove the mechanical key from the fob by sliding the release and pulling out the key blade.
- Use a small flat tool or coin to gently pry apart the two halves of the fob until they separate.
- Locate the old battery and note its orientation. Remove the battery carefully without damaging the internal components.
- Insert the new CR2032 with the positive (+) side facing up, ensuring it sits flat and secure.
- Snap the two halves back together, reinsert the mechanical key, and test the remote by pressing lock/unlock and the trunk button to confirm operation.
If the fob doesn’t work after replacement, recheck the battery orientation and seating, or try replacing again. If issues persist, consult a Honda dealer or authorized service provider.
Where to buy and cost
Battery replacements are widely available, with common retailers offering CR2032 coin cells. Here are typical sources and what to expect in terms of cost.
- Auto parts stores (e.g., AutoZone, Advance Auto, O'Reilly) often stock CR2032 batteries in individual packs
- Big-box retailers and supermarkets with electronics sections
- Online retailers (Amazon, electronics marketplaces) with prices typically ranging from $2 to $8 per battery
- Honda dealership parts departments may sell OEM replacements or multi-packs and can provide installation guidance
Prices vary by retailer and battery quantity; standard CR2032 batteries usually cost a few dollars each, with multi-packs offering better per-battery value. Always check the expiration date on the new battery and store spares in a cool, dry place.
Summary
The 2018 Honda CR-V key fob relies on a CR2032 3V coin cell battery. Replacement is a straightforward two-part process: open the fob, swap in a fresh CR2032 with the correct orientation, and reassemble. Batteries are readily available from auto parts stores, big retailers, or online suppliers, typically at modest prices. If you encounter issues after replacement, verify the seating and consult a dealer if needed.