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How to Replace the Key Battery for the Ford Flex

Model: Ford Flex MK 1 - Years 2009-2019
Part: Key

In this mini guide, you will learn how to easily and safely replace the battery in your Ford Flex key. First, locate the small button on the back of the cover and press it to fully remove the physical emergency key. Next, use the same emergency key or a small flathead screwdriver to remove the back cover and finally access the dead battery. Finally, proceed with the replacement of the battery (make sure the new battery is compatible).

Updated on 29 May 2026 by ScegliAuto

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