The typical Honda Accord key fob uses a CR2032 3-volt lithium coin cell. Some older or smaller fobs may use a CR2025, but CR2032 is the standard for recent years. Always verify by inspecting the fob or consulting the owner's manual.
Battery types used in Honda Accord key fobs
The following common coin-cell types cover what you’re likely to encounter when replacing an Accord key battery.
- CR2032 — 3V lithium coin cell; the most widely used battery in modern Accord remotes.
- CR2025 — 3V lithium coin cell; appears in some older or smaller key designs.
- Other coin cells are rare for current Honda keys; use the exact type specified for your fob to ensure proper function.
In practical terms, today’s Accord keys almost always require a CR2032. If your fob looks unusual or older than a decade, double-check the exact model/year guidance before purchasing a replacement.
Identifying the correct battery for your specific car
To avoid buying the wrong battery, use these quick checks before replacement.
Model-year compatibility and visual cues
Look inside the battery compartment for a label or molded indicator of the required battery type. If there’s no label, compare the coin cell to standard sizes: CR2032 measures about 20 mm in diameter and 3.2 mm thick, while CR2025 is also 20 mm across but only 2.5 mm thick. When in doubt, consult your owner’s manual or contact a Honda dealer for model-year specific guidance.
How to replace the Honda Accord key battery
Replacing the key battery is a quick, do-it-yourself task. Follow these steps to restore full remote functionality without damaging the fob.
- Remove the mechanical key from the fob if your model has a built-in release.
- Use a small flathead screwdriver or a coin to carefully pry apart the two halves of the fob at the seam.
- Take note of the battery’s orientation, then remove the old battery from the compartment.
- Insert the new battery (CR2032 or CR2025, depending on what your fob requires) with the correct polarity, usually the plus side facing up.
- Reassemble the fob, ensuring all clips snap securely, and test the buttons to confirm proper operation.
If the fob feels stubborn to close or you notice no improvement after replacement, recheck the battery type and orientation, or seek professional assistance from a dealer or locksmith.
Where to buy and how to recycle
Purchase replacement batteries from auto parts stores, electronics retailers, or Honda dealerships. For sustainability, recycle spent lithium coin cells at local recycling centers or through retailer take-back programs that accept batteries.
Quick safety and usage tips
Handle the fob gently to avoid damaging the circuitry. If you’re unsure about the process or your fob has a nonstandard design, contact a dealer or automotive locksmith for guidance.
Summary
Today’s Honda Accord key fobs most commonly use a CR2032 3V lithium coin cell. Some older or niche designs may use a CR2025. To replace, confirm the exact type by inspecting the fob or consulting the manual, then follow the simple steps to swap in a fresh battery and reassemble. Proper disposal and recycling of old batteries are encouraged.
What type of battery goes in a Honda Accord key fob?
And then twist. Your key fob isn't open all the way yet so now you'll need to use the key end and wedge it between the gap. And pop it. Open.
Can I use CR2032 instead of CR2025 in a key fob?
Fit and Functionality:
However, if it's too tight or prevents the case from closing properly, it might be better to stick with the CR2025 to avoid damaging the key fob. In summary, you can use a CR2032 instead of a CR2025 as long as it fits properly in the battery compartment of your car key.
What battery goes in a 2020 Honda Accord key?
Take out your dead. Battery. Make sure you place your new one positive side facing upward just like that squeeze these two halves back. Together want to make sure you've got your red light there.
How to replace Honda key fob battery CR2032?
So I'll put the screwdriver. In twist. It you should hear it start to open up and you can see the key fob is now open you can pull the top off set to the side.