The 2014 Honda Odyssey key fob uses a CR2032 3-volt coin-cell battery.
This is the common replacement battery for most Honda remote keys from that era. If you’re unsure, you can verify by opening the fob and checking the battery code or consulting the owner’s manual for your exact trim level.
Battery type and compatibility
The CR2032 is a standard 3-volt coin-cell battery with a diameter of 20 millimeters and a thickness of 3.2 millimeters. It fits in the typical folding key fob used on many 2014 Odyssey units. When replacing, ensure you’re using a genuine or reputable CR2032 to avoid leakage or poor contact. If your fob looks different or you have a smart-key variant, verify the exact model in your manual or with a dealer to confirm compatibility.
Replacing the key fob battery
Before you begin, gather the right battery and a simple tool. The steps below describe a standard replacement for the 2014 Odyssey remote key.
- Prepare a new CR2032 battery and a small flat-head screwdriver or a thin coin for prying.
- Gently pry the fob along the seam to separate the two halves without using excessive force.
- Remove the old battery and note the orientation of the positive side (+) relative to the battery slot.
- Insert the new CR2032 with the positive (+) side facing up, matching the orientation in the fob.
- Snap the halves back together securely and, if applicable, reinstall any screws.
- Test the remote from a short distance to confirm proper operation of all buttons.
Keep the fob clean and dry during replacement, and avoid touching the circuit board with your fingers to prevent corrosion or residue on the contacts.
What to do if the new battery doesn’t work
If the remote still doesn’t respond after replacement, inspect the contact springs inside the fob for corrosion or bending, verify the battery orientation, and ensure there are no cracks in the housing. If issues persist, contact a Honda dealer or a qualified locksmith for further testing or replacement of the fob.
Summary
In short, the 2014 Honda Odyssey key uses a CR2032 3-volt coin-cell battery. Replacing it involves prying the fob apart, swapping in a new CR2032 with the correct orientation, and reassembling the case. If you encounter problems after replacement, check contacts and consider professional help to avoid damage to the fob or the car’s entry system.