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

Fun fact; In 1994, the Ford Mustang was the first vehicle to have a key fob that included a battery. You’re probably asking with mouths agape now, “Are you for real?” Oh yes, it’s a fact. And guess what? Ever since then, it has gone through four significant key fob iterations.

Okay, enough of the chit-chat, let’s get right into why we’re here: Ford Mustang key fob battery replacement.

Want to learn how to replace the battery in each distinct model of the Ford Mustang key fob? Keep reading to discover how!

Need a different Ford key fob battery?

Model	Trims	Generation	Years	Key Fob Type	SubType	Rechargeable? Ease of change	Battery	Buy
Mustang	GT Premium Convertible, GT, Convertible	4th and 5th	1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009	Square Fob	No Key	No	CR2016	Check on Amazon
Mustang	Base, GT, Shelby	5th	2010, 2011, 2012, 2013, 2014	Rounded Key		No	CR2016	Check on Amazon
Mustang	2.3L 4 cyl. Ecoboost, 3.7 L 300 hp V6, GT	6th	2015, 2016, 2017	Rounded Rectangle Smart Key	Internal Valet Key	No	Two CR2025	Check on Amazon
Mustang	2.3L 4 cyl. Ecoboost, 3.7 L 300 hp V6, GT	6th	2018, 2019	Smart Key	Pull Out Valet Key	No	CR2450	Check on Amazon

How to Replace the Ford Mustang 2018, 2019 Smart 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. Click down for a video that shows how to change the battery on the newer 2018-present Mustang key remotes or keep reading for detailed guidelines.

You will need:

• a flathead screwdriver

• a CR2450 battery

Go ahead and test your key now. I bet you notice the difference.

Here’s my video that shows how to change the battery on the newer 2018-present Mustang key remotes:

Ford Mustang Remote Key Fob Battery Replacement 2018 2019

This is the battery for this Mustang key fob:

How to Replace the Ford Mustang 2015, 2016, and 2017 Key Fob Battery

Scroll down for a video below or keep reading to see 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.

You will need:

• two CR2025 batteries

• a flathead screwdriver

Step 1

Flip the fob key over, and locate the little button behind the key. Compress the button with your finger and screwdriver. Press down the button until the back cover becomes loose and you get some leverage. Then open up the back cover.

Step 2

The back cover will open up to show the valet key. Check above the valet key for an indentation line at the edge of the key. Stick a flathead screwdriver into the line pry and push till the fob key comes apart in two halves.

Step 3

You’d have access to the dead batteries as soon as the key comes apart. This key remote uses two batteries. Use a flathead screwdriver to pop out the first dead battery. A little piece of metal and plastic separates the two batteries.

Step 4

Now install the new batteries. Gently raise the metal and place in the first battery. Replace the metal and tiny plastic and put the second battery with the positive side facing down.

Step 5

Gently replace the two halves back into place. Press round to ensure it pops back into place. Finally, replace the valet key cover.

Step 6

Your key will now function as good as new! You can now switch on the ignition, ride lock and unlock your car door with so much ease.

The video below shows how to replace the two CR2025 batteries in the smart Ford Mustang key fob. 

Ford Mustang Smart Key Fob Battery Replacement (2015 - 2017)

This is the two batteries for this Mustang key fob:

How to Replace the Ford Mustang 2010-2014 Key Fob Battery

This fob has the key integrated into the remote buttons. It requires a bit of labor to access the internal CR2032 battery. Scroll down for a video or keep reading to learn about Ford Mustang key fob battery replacement for 2010, 2011, 2012, 2013, 2014 Mustang models:

You’ll need:

• a box cutter or razor blade to score around the middle of the fob.

• a CR2032 battery

• a flathead screwdriver

Step 1

Check around the fob key for an indentation line that divides the key into two halves. Use a razor or key blade to score around the line until you can insert a small-size flathead screwdriver into the line.

Step 2

Separate the key in halves by inserting the screwdriver into the line and gently pushing the key till it comes apart.

Step 3

As soon as you separate the key, a rubber key cover will fall off and gives you access to the old battery. Remove the old battery and put in the new one. Install the new battery with the positive side facing up. Note that the positive side is the part with texts.

Step 4

Now replace the small rubber battery cover. Place the two halves back together after you have replaced the battery cover. Press round and the key will snap back into place.

Step 5

Your key is as good as new! You can test the key. Try unlocking your vehicle doors and other key functions. I bet it works perfectly now.

Here’s my video on replacing this fob model for 2010, 2011, 2012, 2013, 2014 Mustang models:

Ford Mustang Remote Key Fob Battery Replacement (2010, 2011, 2012, 2013, 2014)

This is the battery for this Mustang key fob:

How to Replace Older Ford Mustang Remote Batteries

The older Ford Mustang remotes do not contain keys, usually, just a lock/unlock/alarm button combination. This older fob was popular with other Ford models during the time frame.

Scroll down to see a video or keep reading to learn how to change this fob key battery.

You will need:

• a CR2032 key battery.

• razor or key blade

• a flathead screwdriver

Step 1

Check for indents line round the key. Use a razor blade to score around the line. Check for enough loop at the top of the key, where the key chain is. Use a small flathead screwdriver to pry into the space and lift.

Step 2

The key will come apart in half when you twist the screwdriver. You’d have access to the dead battery as soon as the key separates into halves.

Step 3

Use a flathead screwdriver to remove the old battery. Install a new one with the positive side facing down. The positive side is the part with texts.

Step 4

Now set the two halves back together. Press round and the key will pop back into place.

There you go! You’re done with the Ford Mustang key fob battery replacement.

This is the battery for this Mustang key fob:

Frequently Asked Questions

What kind of batteries does a Mustang key fob take?

This device is powered by a coin-style 3-volt battery, the CR2450 or equivalent. To turn the batteries on, push a release button underneath the fob and release the keys.

What battery goes in a 2014 Ford Mustang key fob?

You can find out what kind of battery your automobile key fob requires by consulting a car dealer or the manual that came with your vehicle.

The CR2 battery is standard in most Ford Mustang key fobs. Nearly any original equipment manufacturer or store selling electronics can take your order for any rechargeable battery brand.

In addition, you can get any of them online at Amazon for an amazing price. You will save cost and get value for your money.

 

Conclusion

A warning indicator or message will always appear when the remote’s battery life is low. If your car’s battery is dying, you may have difficulties locking and unlocking the doors. The vehicle might ignore your commands. Further indicators that your key fob’s battery is low might be found in the owner’s instructions manual that came with your vehicle.

Don’t wait until your key fob completely stops working. Put these Ford Mustang key fob battery replacement steps to the test by changing the battery in your car. Try out any of these easy procedures and drop your comment after.