Most 2017 Honda key fobs use a CR2032 3-volt coin cell. This article explains the typical battery type, how to verify your specific fob, and how to replace it safely.
In 2017, Honda offered several models with different key fob configurations, but the CR2032 battery has been the standard for the vast majority of remote keys from that year. The guidance here covers common cases, how to confirm the exact size for your car, and step-by-step replacement tips to avoid damage or misfitting the battery.
Typical battery size for 2017 Honda key fobs
Here’s what you need to know to identify the correct battery for your specific vehicle and fob configuration.
- Most 2017 Honda key fobs use a CR2032 3V coin cell, which is the standard size for many models including Civic, Accord, CR-V, and Fit from that period.
- Some older or market-specific fobs may use a different size, such as CR2025, but CR2032 is by far the most common for 2017 Hondas. Always verify with the manual or the fob itself.
- Check the fob’s back cover or the battery you remove for a label indicating the exact type; if the old battery is clearly marked, use the same size.
- When in doubt, assume CR2032 as the default and confirm with the owner’s manual or a Honda service representative before purchasing.
In practice, CR2032 is the safe default for most 2017 Honda key fobs. If your model uses a different size, replacing with the wrong coin cell can prevent the fob from functioning correctly, so verification is important.
How to replace the battery
To replace a 2017 Honda key fob battery, follow these practical steps. The process is straightforward and can usually be done at home with minimal tools.
- Prepare tools and supplies: a small flat-head screwdriver or coin for prying, and a fresh CR2032 battery.
- Remove the mechanical key: slide the release and pull out the physical key blade to access the fob seam.
- Open the fob housing: gently pry along the seam to separate the two halves without damaging the electronics.
- Remove the old battery: note the orientation (positive side facing up) before lifting it out.
- Insert the new battery: place the CR2032 with the positive side up, ensuring it sits flat and aligns with the contacts.
- Reassemble the fob: snap the two halves back together and reinsert the metal key blade.
- Test the fob: stand near the car and press the lock/unlock or trunk button to confirm the replacement works; if it doesn’t, recheck the battery orientation or try a fresh battery.
With the battery replaced correctly, your Honda key fob should function as before. If you’re dealing with a proximity smart key and it still won’t respond, you may need to re-pair the fob with the vehicle or consult the owner’s manual for specific reprogramming steps.
Summary
For 2017 Honda key fobs, the typical battery size is CR2032 3V. Always verify your exact model by inspecting the fob, checking the owner’s manual, or consulting a dealer if you’re unsure. Replacement is usually quick and requires only a screwdriver or similar tool, a new battery, and careful handling to avoid damaging the fob’s electronics.