The majority of Honda Accord key fobs use a CR2032 lithium coin cell, though some older or regional models may use CR2025 or other small coin cells. Always check your specific fob or the owner's manual to be sure.
Battery types commonly used in Honda Accord key fobs
Below is a quick guide to the battery types seen in Accord remotes across model years. Since Honda updates designs by year and market, confirm by inspecting your fob or the manual for your exact vehicle.
- CR2032 — the most widely used coin cell in modern Honda Accord key fobs.
- CR2025 — used in some older models or regional remotes; thinner coin cell with similar voltage.
- CR1616 — rare in some older or regional keys; less common for contemporary models.
Knowing the exact type saves time when buying a replacement. If in doubt, inspect the back of the key fob or consult the vehicle’s manual for your model year.
How to replace the key fob battery
To keep your Honda Accord remote functioning, replacing the battery is a quick process that can be done at home with minimal tools.
- Identify the battery type by removing the physical key from the fob or by examining the battery currently inside. If unsure, refer to the owner’s manual or the fob’s underside label.
- Use a small flathead screwdriver or a coin to gently pry apart the two halves of the fob. Be careful not to damage the plastic housing.
- Take out the old battery and note the orientation. Most coins are placed with the positive side facing up (toward you) unless the fob indicates otherwise.
- Insert the new battery (same size as the old one) with the correct polarity. Press gently to ensure it sits flat and contacts are clean.
- Reconnect the fob halves and press the button to test the lock/unlock functions. If the fob doesn’t respond, reseat the battery or try a fresh replacement.
- If problems persist, contact a dealership or automotive locksmith for reprogramming or to check for other issues with the fob or vehicle.
Regular battery replacements extend the life of the key fob and prevent unexpected lockouts, especially in cold or humid conditions where battery performance can drop.
Alternate fob types and regional variations
Some markets or older trims may use different battery types or fob architectures. If your fob looks markedly different from the typical Honda remote, consult the dealer or service manual specific to your country and model year.
Summary
Most Honda Accord key fobs use a CR2032 lithium coin battery, with occasional use of CR2025 or other small coin cells depending on the year and region. Replacing the battery is straightforward, and it’s wise to verify the exact type by inspecting the fob, consulting the manual, or visiting a dealer if in doubt. Always handle the fob gently and test after replacement.