The 2007 Honda CR-V key fob most commonly uses a CR2032 3-volt lithium coin cell. Some early or regional remotes may have used a different size, such as CR1616, so it’s best to verify by inspecting the battery inside the fob or checking the owner's manual.
Common battery sizes found in 2007 CR‑V remotes
Car remotes from that era used a few coin-cell sizes. The following options have been reported for some 2007 CR‑V key fobs.
- CR2032 — the most widely used 3V lithium coin cell in Honda remotes from that period
- CR1616 — a thinner 3V coin cell found in some early or regional fobs
- CR2025 — occasionally used in slightly thinner remotes
If you’re unsure which one your fob requires, inspect the battery itself once you open the fob or consult the owner's manual for the exact specification.
How to replace the key fob battery
Replacing the battery is a straightforward, at-home task. The steps below cover typical 2007 CR‑V fobs; if your model has a different assembly, adapt as needed.
- Use a small flathead screwdriver or a coin to gently pry apart the two halves of the fob until they separate.
- Carefully lift and remove the old battery, noting which side is facing up (the polarity).
- Insert the new battery with the correct polarity, usually the + side facing up.
- Snap the two halves of the fob back together and press firmly around the edges to reseal.
- Test the remote to ensure the buttons transmit properly; if the car doesn’t respond, recheck the battery orientation or try a fresh battery.
Dispose of the old battery at an appropriate recycling location and avoid handling the battery with metal tools that could cause short circuits.
Troubleshooting after replacement
If the remote still doesn’t work after replacing the battery, possible issues include battery contact corrosion, a worn button, or the need for reprogramming. In that case, contact a Honda dealer, locksmith, or qualified technician for diagnostics or reprogramming.
Summary: For most 2007 Honda CR‑V key fobs, the standard replacement battery is a CR2032 3V lithium coin cell, though a CR1616 or CR2025 may appear in some variants. Verify by inspecting the fob, then replace with the correct size following the steps above and dispose of the old battery responsibly.