The 2016 Honda CR-V key fob uses a CR2032 3-volt lithium coin battery. This is the standard size for most Honda remotes from that era.
Getting the replacement battery right ensures the fob works reliably for locking, unlocking, and other features. The guide below covers the correct battery type, how to replace it, and tips if the fob stops working after installation.
Battery type and compatibility
For the 2016 CR-V key fob, the replacement battery is a CR2032 3V lithium coin cell. This is the most common size used in Honda remotes from roughly the mid-2010s. If you’re uncertain, inspect the existing battery or the fob’s documentation; the cell is typically labeled CR2032 and 3V.
What you’ll need to replace the battery
- CR2032 3V lithium coin battery (new)
- Small flathead screwdriver or a dedicated fob opening tool
- Clean, flat workspace and good lighting
- Optional: a soft cloth to protect the fob exterior
With the right tools and battery, you can replace the fob’s power source quickly and resume normal use.
How to replace the battery
Follow these steps to safely replace the CR2032 battery in your 2016 Honda CR-V key fob. Note that no dealer reprogramming is required for this model after a battery swap.
- Remove the mechanical key (if your fob includes one) by pressing the release and sliding the key out of the fob.
- Locate the seam along the edge of the fob. Use the flathead screwdriver to gently pry the two halves apart, starting at the seam and working around the perimeter.
- Carefully lift the top half to expose the battery. Take note of the battery’s orientation (usually the positive side faces up).
- Remove the old battery and dispose of it properly in accordance with local regulations.
- Insert the new CR2032 with the positive (+) side facing up, ensuring it sits flat and makes good contact with the terminals.
- Snap the fob halves back together until they click into place. Reinsert the mechanical key if you removed it.
After reassembling, test the fob by pressing the buttons to ensure the doors lock/unlock and the panic alarm (if equipped) functions. If the fob still doesn’t respond, check the battery orientation, clean contact surfaces, or try a fresh battery in case the first one is a dud.
Troubleshooting and notes
What if the fob still doesn’t work?
If replacement doesn’t restore function, the issue could be a damaged circuit board, corrosion from a leaked battery, or a receiver issue in the vehicle. In that case, consult a Honda dealer or a qualified automotive locksmith. They can test the fob, reprogram it if necessary, or inspect the vehicle’s entry system for faults.
Summary
For a 2016 Honda CR-V key fob, the correct battery is a CR2032 3V lithium coin cell. Replacement is straightforward: pry open the fob, replace the battery with proper polarity, reassemble, and test. If problems persist after a fresh battery, professional inspection may be required.