The key fob used by a 2011 Honda Accord typically runs on a 3-volt CR2032 lithium coin battery.
In most trims, the standard remote operates on a CR2032 coin cell. Some fobs or variations in production could differ, so if you have multiple remotes or a recently replaced unit, check the size printed on the old battery or consult the owner’s manual. Replacing the battery typically does not require reprogramming the fob; simply swap in the fresh cell and reassemble.
Battery type and compatibility
Key facts about the right battery for your 2011 Accord key fob and how to verify compatibility.
- Primary battery: CR2032 3V lithium coin cell, the standard for most 2011 Accord remotes.
- Alternative sizes: CR2025 or CR1616 are uncommon for this model; use only if your specific fob or the old battery indicates a different size.
- Check the old battery: If you can read its size, match it; otherwise refer to the owner's manual or Honda's online support by your VIN.
- Quality matters: Use a fresh, reputable brand; avoid re-used or expired cells.
- Polarity: Install with the positive (+) side facing up, as indicated by the battery well or printed diagram in the fob.
- Disposal: Recycle the old battery according to local regulations or store with household hazardous waste.
In short, ensure you use a fresh CR2032 for the majority of 2011 Accord key fobs, and double-check the battery size if your fob looks different from typical designs.
Replacement steps
Follow these step-by-step instructions to swap in a new battery safely and effectively.
- Gather supplies: a CR2032 battery, a small flathead screwdriver or coin, and a clean workspace.
- Separate the fob halves: use the screwdriver or a coin to gently pry apart the two halves at the seam.
- Remove the old battery: take note of the orientation (which side is up) before lifting it out.
- Insert the new battery: place the CR2032 into the battery well with the correct polarity (+ up) as observed.
- Reassemble the fob: snap the two halves back together until they click and the cover is flush.
- Test the remote: press the lock/unlock/panic buttons to confirm the fob works; if not, reseat the battery or consult a dealer if needed.
Even after a successful swap, avoid exposing the fob to moisture or extreme temperatures, and store spare batteries in a cool, dry place.
Summary
For a 2011 Honda Accord key fob, the typical battery is a CR2032 3V lithium coin cell. Replacement is a quick DIY task that generally does not require reprogramming. Always verify the correct size by checking the old battery or the owner’s manual, replace with a fresh battery from a reputable brand, and test the fob after reassembly.