Ford Mustang Key Fob Battery Remote Replacement DIY Years 1994-2019

The Ford mustang first introduced a key fob with a battery in 1994. Since then, it has had four major key fobs. We will cover how to change the battery in each type of Ford Mustang key fob on this page. Need a different Ford key fob battery?

ModelTrimsGenerationYearsKey Fob TypeSubTypeRechargeable? Ease of changeBatteryBuy
MustangGT Premium Convertible, GT, Convertible4th and 5th1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009Square FobNo KeyNoCR2016
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MustangBase, GT, Shelby5th2010, 2011, 2012, 2013, 2014Rounded KeyNoCR2016
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Mustang2.3L 4 cyl. Ecoboost, 3.7 L 300 hp V6, GT6th2015, 2016, 2017Rounded Rectangle Smart KeyInternal Valet KeyNoTwo CR2025
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Mustang2.3L 4 cyl. Ecoboost, 3.7 L 300 hp V6, GT6th2018, 2019Smart KeyPull Out Valet KeyNoCR2450
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How to replace the Ford Mustang 2018, 2019 Smart key fob battery

How to change the 2018 2019 Ford Mustang key fob battery
How to change the 2018 2019 Ford Mustang key fob battery

The modern mustang key fob contains an easy to pull out valet key, as well as an easy to change CR2450 internal battery. Here’s my video that shows how to change the battery on the newer 2018-present Mustang key remotes:

This is the battery for this Mustang key fob:


Buy CR 2450 Replacement Battery on Amazon

How to replace the Ford Mustang 2015, 2016, 2017 key fob battery

How to change Ford Mustang key fob batteries in 2015 - 2017 smart key remote
How to change the Ford Mustang key fob batteries in 2015 – 2017 smart key remote

The video below shows how to replace the two CR2025 batteries in the smart Ford Mustang key fob. This fob has an internal valet key, it does not contain a flip key.

This is the two batteries for this Mustang key fob:


Buy CR 2025 Replacement Batteries on Amazon

How to replace the Ford Mustang 2010, 2011, 2012, 2013, 2014 key fob battery

How to change Ford Mustang round key fob battery 2010 - 2014
How to change Ford Mustang round key fob battery 2010 – 2014

This fob has the key integrated into the remote buttons. It requires a bit of labor to access the internal CR2032 battery. You’ll want a box cutter or razor blade to score around the middle of the fob. Once you’ve done that you’ll be able to pry the two parts apart and access the key battery. Here’s my video on replacing this fob model for 2010, 2011, 2012, 2013, 2014 Mustang models:

This is the battery for this Mustang key fob:


Buy CR 2032 Replacement Batteries on Amazon

How to replace older Ford Mustang remote batteries

How to change older Ford Mustang remote key fob batteries
How to change older Ford Mustang remote key fob batteries

The older Ford Mustang remotes do not contain any keys, usually just a lock/unlock/alarm button combination. This older fob was popular with other Ford models during the time frame. It requires scoring the edges, as I show in my video to be able to pry apart the fob to access the battery you’ll need to replace: a CR2032 key battery.

This is the battery for this Mustang key fob:


Buy CR 2032 Replacement Batteries on Amazon