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2012 First generation (final model year)

2012 Ford Fusion Key Fob Battery Type and Replacement

The 2012 Ford Fusion key fob takes a CR2032 coin cell. How to open the fob without breaking it, and which substitutions actually work.

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Quick answer

The 2012 Ford Fusion key fob takes a CR2032 coin-cell battery, available at any pharmacy, hardware store, or online for a few dollars.

Replacing the 2012 Ford Fusion key fob battery

  • Pry the fob open gently at the seam with a small flathead screwdriver or a coin, working around the edge. Many fobs have a hidden release slot near the key ring or emergency-key blade.
  • Note the battery orientation (usually positive side up) before removing the old cell.
  • Avoid touching the new battery's faces with bare fingers; skin oils can shorten its life.
  • If the fob doesn't work after replacement, check that the battery is seated fully and the contacts weren't bent. Most vehicles do not need re-pairing after a battery change.

Which Ford Fusion model years does this cover?

These key fob battery specifications apply to every Ford Fusion built from 2012 through 2012 — the First generation (final model year), mid-size sedan. Nothing in this specification changes between those model years. Pick your year for the engines it offered, what changed that year, and the problems recorded against it.

What changed during the 2012 Ford Fusion

  • 2012Final model year of the original 2006-body Fusion before the all-new CD4 redesign for 2013.

2012 Ford Fusion key fob battery: common questions

What battery does the 2012 Ford Fusion key fob take?

A single CR2032 coin cell.

Can you use a CR2032 instead of a CR2025 in a 2012 Ford Fusion key fob?

This fob takes a CR2032, so start there. The two cells share a 20 mm diameter but differ in thickness, and the thicker one does not always seat in a housing built for the thinner.

How do you open a 2012 Ford Fusion key fob?

Slide out the mechanical emergency key first, which usually releases a catch, then part the halves with a plastic pry tool or a coin wrapped in tape. A screwdriver will mark the case and can crack the seam.

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