The key fob for a 2016 Honda Accord uses a CR2032 3-volt lithium coin cell.
In most markets, this is the standard battery powering the remote's lock/unlock and alarm functions. If you have a regional variation or a different replacement key, verify the exact battery type by checking the back of the fob’s battery cover or the owner’s manual, as some configurations may use a different coin cell.
Battery type and compatibility
The CR2032 is a common, widely available 3-volt lithium coin cell that fits the Accord’s remote fob from that generation. Most US-market 2016 Accords follow this standard, but a few export or alternate-key configurations may use other sizes such as CR1616 or CR2025. Always confirm by inspecting the fob’s battery compartment or the manual.
Replacing the key fob battery
Before you replace the battery, prepare a fresh CR2032 cell and a small tool to pry the case open. The steps below outline a typical replacement process for the 2016 Accord remote.
- Slide out the mechanical key blade from the fob to access the seam.
- Use a small flat-head screwdriver or a coin to gently pry open the fob case along the seam.
- Remove the old battery, noting the orientation of the positive (+) side.
- Insert a new CR2032 battery with the positive side facing the correct contact in the fob.
- Snap the two halves back together and reinsert the mechanical key blade.
- Test the remote by pressing lock/unlock to confirm the battery replacement worked.
If the remote still doesn’t respond, double-check the battery orientation, clean any corrosion from contacts, or consult a dealer for reprogramming or a potential receiver issue in the car.
Regional variations and maintenance tips
Some markets or accessory fobs may use different coin cells. If your fob looks different or the manual specifies another grade, follow that guidance. After replacement, store spare batteries safely and recycle used cells according to local regulations.
Summary
The standard battery for the 2016 Honda Accord key fob is a CR2032 3-volt lithium coin cell. Replacing it is a quick, widely available repair that typically solves most remote malfunctions; always verify the battery type for your specific fob variant and polarity before reinstalling.