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How to Replace the Key Fob Battery in a Ford Flex?

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

Replacing the key fob battery in a Ford Flex, as shown in this tutorial, is an extremely simple and inexpensive task. For this, you will need a small flathead screwdriver and a replacement CR2032 3V battery. First, press the button on the back to extract the emergency metal key, then separate the two halves of the key fob by prying with the screwdriver in the indicated slot. Once this is done, remove the old battery and insert the replacement, making sure to observe the correct polarity.

Updated on 1 June 2026 by ScegliAuto

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