The 2015 Ford Explorer key fob uses a CR2032 3-volt lithium coin cell battery.
In practice, this means you’ll typically replace a worn or dead fob battery with a CR2032 battery. If your remote stops working, replacing the battery is the first and usually most effective troubleshooting step. Always verify you’re using the correct size and install it with the correct polarity to ensure proper function.
Battery type and compatibility
Understanding the exact battery helps you prepare for replacement without unnecessary trips to the store. The standard Explorer key fob from this era is powered by a CR2032 coin cell, a common size used across many automakers for remotes and key fobs.
Before replacing, note the following key facts to avoid confusion:
- Battery model: CR2032 3V lithium coin cell, commonly available at supermarkets, electronics stores, and auto parts shops.
- Physical size: approximately 20 mm in diameter and 3.2 mm thick.
- Polarity: install with the positive (+) side facing up, toward the electronics when the back cover is reattached.
- Replacement frequency: depends on usage, but typical life is 1–2 years rather than a fixed schedule.
If your fob looks different or you have a proximity/smart key variant, refer to the owner’s manual or consult a Ford dealer to confirm battery type, as some regional or trim variations might differ slightly.
How to replace the battery
Follow these steps to replace the key fob battery safely and ensure the remote continues to operate properly.
- Gather a CR2032 3V battery and a small flat-head screwdriver or prying tool.
- On the back of the key fob, locate the seam where the two halves meet. Gently pry open the case with the tool, applying steady, even pressure to avoid cracking the plastic.
- Carefully remove the old battery from its slot, noting the orientation (which side was facing up).
- Insert the new CR2032 battery with the positive (+) side facing up, matching the orientation of the old battery.
- Snap the two halves of the fob back together and press firmly around the edges to seal.
- Test the remote by pressing a button to confirm it’s functioning. If it doesn’t respond, recheck the battery orientation or try a fresh battery.
If the remote still doesn’t work after replacement, the issue may be internal to the fob or require reprogramming at a dealership or automotive locksmith. Keep your spare key fob available for use while addressing any persistent issues.
Note on model variations
While CR2032 is the standard for most 2015 Explorer key fobs, variations in regional packaging or aftermarket replacements can occur. If you’re unsure, check the key’s back cover for any part numbers or consult your owner’s manual or a Ford dealer with your vehicle’s VIN for confirmation.
Summary
The standard 2015 Ford Explorer key fob uses a CR2032 3V lithium coin cell. Replacement is straightforward: pry open the fob, swap in a new CR2032 with the correct polarity, and reassemble. If problems persist after a fresh battery, seek professional assistance to rule out programming or circuitry issues.