Most 2014 key fobs use a CR2032 coin-cell battery, though some models use CR2025 or CR2016.
The exact size depends on the vehicle’s make and model, and you should verify by inspecting your fob, checking the owner’s manual, or contacting the dealer if needed.
Common battery sizes used in 2014 key fobs
Here are the battery sizes you’re most likely to encounter in 2014-era key fobs.
- CR2032 — the most widely used coin-cell in 2014-era fobs.
- CR2025 — used in some smaller or shallower fob designs.
- CR2016 — occasionally found in very slim fobs.
If you’re not sure which size your fob needs, check the current battery directly in the fob or consult the owner’s manual or dealership for your specific vehicle.
Replacing the battery safely
Follow these steps to replace the battery once you have identified the correct size.
- Identify the correct battery size by consulting the manual or inspecting the current battery; note that some fobs list the size on the back or inside the battery compartment. If your fob has a model number on the back, you can look it up to confirm the exact battery type.
- Gather the replacement battery (CR2032 is the most common, but use the exact size you need) and a small tool if needed.
- Open the fob: separate the two halves along the seam. If your fob has a mechanical key blade, remove it first; some models require removing a tiny screw or latch.
- Carefully remove the old battery, noting its orientation (which side is facing up).
- Insert the new battery with the correct polarity (usually the plus (+) side facing up). Ensure the battery sits flat and makes good contact with the terminals.
- Reassemble the fob and snap the halves back together; replace any screws or the mechanical key.
- Test the fob by pressing its buttons to verify it unlocks the doors or starts the car (if applicable).
If the fob still doesn’t respond after replacement, the issue may lie with the key fob’s circuitry or the car’s receiver; contact a dealer or locksmith for assistance.
What to do if you’re unsure about the exact size
If you’re uncertain about the correct size, consult your vehicle’s manual or contact the dealer. You can also check the back or inside the battery compartment for size markings or the fob’s model number and search online for the exact replacement.
Summary
For most 2014 key fobs, CR2032 is the default battery, but CR2025 and CR2016 occur in some models. Always verify the exact size before replacing, and follow careful steps to open the fob and install the new battery. If in doubt, seek professional help to avoid damaging the fob.