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How to Change the Key Fob Battery for a Ford Fusion

Model: Ford Fusion North America MK 2 - Years 2013-2020
Part: Key

In this tutorial, you will learn how to change the battery in the key fob of a Ford Fusion. Before you start, make sure you have the correct replacement battery, which is a flat CR 2450 model rated at 3 V. First, take the key fob and extract the metal key from inside by pulling on the upper end. Next, use the key itself to pry open the fob casing; you will then have access to the battery compartment and can proceed to remove and replace the battery.

Updated on 20 September 2026 by ScegliAuto

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