Ford Flex Key Fob Battery Remote Replacement 2009 – 2019

The Ford Flex reminds me of my old Scion xB, but on steroids. The large box of an SUV has massive room and visibility, and thankfully, some pretty easy key fob batteries to change! The Flex has had just two key models in it’s first decade of life, and both take the small CR 2032 battery. If you have another Ford car, check out our Ford Fob Batteries guide.

ModelTrimsGenerationYearsKey Fob TypeSubTypeRechargeable? Ease of changeBatteryBuy
FlexSE, SEL, Limited, Sport Appearance Package2nd2013, 2014, 2015, 2016, 2017, 2018, 2019Ford Slim Smart Key Battery Slim Smart Remote Key Smart KeyNoCR2032
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FlexSE, SEL, Limited, Sport Appearance Package1st & 2nd2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019Ford Rounded Key Battery Rounded KeyCR2032
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How to replace the Ford Flex 2013 – 2019 slim key fob battery

How to change the Ford Flex slim smart key fob battery used from 2013 to present
How to change the Ford Flex slim smart key fob battery used from 2013 to present

This is the battery for this Ford Flex slim key fob remote:


Buy CR 2032 Replacement Battery on Amazon

How to replace the Ford Flex 2019 – 2019 remote key fob battery

Change the remote / key combo battery in the Ford Flex
Change the remote / key combo battery in the Ford Flex

This combo key/remote is not a “smart” key, but does contain the same internal CR2032 battery as the other Ford Flex fob. This one will need to be pulled apart into two pieces to access the internal battery to replace. My video shows you exactly how to do that:


This is the battery for this Ford Flex remote key fob:


Buy CR 2032 Replacement Battery on Amazon