The Honda Accord Sport key fob generally uses a 3-volt lithium coin cell, most often the CR2032. Some model years or regional variants may use a CR2025 instead.
This article explains which batteries are typical for the Accord Sport key, how to identify the correct size for your car, and how to replace the battery safely.
Common battery sizes for the Accord Sport key fob
There are two standard coin-cell sizes seen in Honda key fobs for the Accord Sport across different years and regions. The most common modern choice is CR2032; in some cases CR2025 is used, typically in older models or specific markets.
- CR2032 — 3V lithium coin cell; standard for most current Honda Accord Sport key fobs.
- CR2025 — 3V lithium coin cell; used in some older models or certain markets; fit may differ due to thickness.
Choosing the correct size ensures proper fit and reliable remote operation. If you're unsure, check your fob's back cover or the owner's manual for the exact specification.
How to identify the battery in your key
To determine the exact battery size for your vehicle, inspect the back cover of the key fob or reference your owner's manual. If you can't access the manual, a dealership or automotive parts store can confirm the correct size for your year and trim.
How to replace the battery
Replacing the fob battery is a simple at-home task. The following steps outline the typical process; however, yours may vary slightly by design. Always use the correct size and fresh battery.
- Purchase the correct battery: CR2032 is the common choice for most modern Accord Sport fobs; CR2025 if your model uses that size.
- Open the key fob: Use a small flat tool or a coin to gently pry off the back cover, taking care not to damage seals.
- Remove the old battery: Take note of polarity (which side is up) before removing it.
- Install the new battery: Place the coin cell with the correct polarity (positive side facing up) into the compartment.
- Reassemble the fob: Snap the back cover back on and press around the edges to seal.
- Test the fob: Try locking/unlocking the doors or starting the car (if the fob supports push-button start) to confirm operation.
If the fob intermittently fails after replacement, recheck the orientation, try a new battery, or consult a dealer for diagnostics.
Summary
The Honda Accord Sport key fob primarily uses a 3V CR2032 lithium coin cell, with CR2025 as an alternative in some older or regional variants. Verify the exact size for your specific year and trim, and follow proper replacement steps to keep your key functioning smoothly.