The 2016 Honda Accord key fob uses a CR2032 3-volt lithium coin battery.
This compact cell powers the remote controls and, in most configurations, the smart-key features. Replacing it is a routine maintenance task you can perform at home with a small tool and a fresh battery.
Battery type and model
The CR2032 is a widely used, flat, 3V lithium coin cell chosen for automotive remotes due to its compact size and reliable performance. It covers most 2016 Accord remote and smart-key configurations. When purchasing replacements, verify you’re selecting the CR2032 sized cell.
Replacement steps
If you need to replace the battery in a 2016 Honda Accord key fob, follow these steps. Having the right replacement battery and a clean workspace helps prevent damage to the fob.
- Remove the mechanical key blade: Slide the small release tab to eject the metal key from the fob.
- Open the fob shell: Use a small flat tool or a coin to gently pry along the seam and separate the two halves.
- Take note of battery orientation: Observe whether the + side faces up so you can install the new battery correctly.
- Replace the battery: Insert a new CR2032 with the + side facing up and secure it in the battery holder.
- Reassemble the fob: Snap the two halves back together and reinsert the mechanical key blade.
- Test the remote: Stand within range and verify that lock, unlock, and trunk functions respond as expected.
With the new battery installed, your key fob should operate normally. If it doesn’t work, recheck the battery orientation, ensure the cover is fully seated, and consider a professional check if issues persist.
Smart key considerations
Some 2016 Accord models offer a smart-key option with proximity sensing. For those fobs, the replacement battery is typically still a CR2032, and the replacement process is similar, though certain shells may use screws or a different joining method. If your fob includes a pull-out emergency blade and a separate battery compartment, follow the owner’s manual for exact steps.
Summary
In short, the 2016 Honda Accord key fob runs on a CR2032, 3-volt lithium coin cell. Replacement is straightforward: pry open the case, swap in a fresh CR2032 with the correct orientation, and reassemble. This simple maintenance keeps the remote functioning reliably and avoids unnecessary visits to a dealer.