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How to Replace the Key Battery on a Ford Fusion

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

If you try to open the car door with the remote and it doesn't work, you likely need to replace the battery. Here's how to proceed: use a sharp object to pry at the junction between the key cover and the key itself on one side. Remove the cover, and underneath you will find the battery compartment. Using a sharp object, extract the battery and replace it with the new one, making sure to keep the positive terminal facing up. Then, reattach the plastic cover, and you're done.

Updated on 1 July 2026 by ScegliAuto

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