The key fob for most 2016 Honda Accord models uses a CR2032 3-volt lithium coin cell. This is the small coin-shaped battery that powers the remote functions like lock, unlock, and panic.
Battery size for the 2016 Accord key
In practice, Honda’s 2016 Accord remote keys typically rely on a CR2032 coin cell. This size is common across many Honda fobs from that era. If your particular fob feels different or you have a special edition, you can confirm by opening the fob and checking the battery itself or consulting the owner’s manual.
Identifying the correct battery
To verify the battery size, carefully pry open the fob and remove the current battery. The CR2032 is a 3V lithium coin cell, roughly 20 millimeters in diameter and 3.2 millimeters thick. Check the label on the old battery to confirm the exact size before purchasing a replacement.
How to replace the battery
Follow these steps to replace the battery in a 2016 Honda Accord key fob.
- Use a small flat-head screwdriver or a thin tool to gently pry apart the two halves of the key fob along the seam.
- Carefully lift out the old battery, noting which side was facing up.
- Insert a new CR2032 coin cell with the same orientation as the old battery.
- Snap the fob halves back together and ensure a firm seal.
- Test the remote by locking/unlocking the doors and using the panic button to verify proper operation.
After replacing the battery, store the fob in a safe place and re-test all functions to confirm the swap was successful.
Where to buy a CR2032 battery
CR2032 batteries are widely available, but it’s best to buy from reputable sources to ensure genuine, non-rechargeable cells designed for automotive use.
- Automotive parts stores (e.g., AutoZone, Advance Auto Parts, O'Reilly Auto Parts)
- Major retailers and electronics stores (e.g., Walmart, Target, Staples)
- Pharmacies or convenience stores that stock common coin-cell batteries
- Online marketplaces (e.g., Amazon) with clear CR2032 listings
When purchasing, confirm you are getting a standard CR2032 3V lithium coin cell intended for remote key fobs. Avoid rechargeable variants unless explicitly specified for your model.
Safety and handling tips
Handle the coin cell with clean hands and avoid touching the battery’s terminals. Keep batteries away from children and pets, do not attempt to recharge a standard CR2032, and never short-circuit the battery. If your fob shows signs of damage or fails to function after replacement, consult an authorized Honda dealer or a certified automotive locksmith.
Summary
The 2016 Honda Accord key fob typically uses a CR2032 3V lithium coin cell. Replacing it involves prying open the fob, swapping in a new CR2032 with the correct orientation, and reassembling the case before testing. Batteries are readily available from auto parts stores, major retailers, electronics shops, and online vendors. If you’re unsure about your exact fob variant, check the battery size inside or refer to the owner’s manual for confirmation.