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By YOUCANIC on May 14, 2019

Ford Key Fob Battery Replacement

This article provides instructions on how to change the battery on Ford key fob remotes.

These instructions apply to many models such as Ford cars and trucks.These instructions are helpful for owners of Ford and Lincoln vehicles such as the Focus, Fiesta, C-Max, Mustang, Escape, Transit Connect, Edge, Flex, Explorer, Expedition, Taurus, F-150, EcoSport, MKC, MKZ, MKS, MKX, MKT and the Navigator.

Intelligent Key Fob Battery Replacement

Battery Size



ford key fob battery replacement


  1. Turn the remote over and on the rear of the remote press the release button.
  2. Remove the plastic cover from the remote. Place the back cover to the side. You will not see the batteries yet. 
  3. Insert a flat screwdriver into the slot and twist it to open up the remote. You should be able to pry the two parts of the keyfob. 
  4. Now you should be able to see the two coin cell batteries. 
  5. Remove the first battery. Underneath it you will see a white piece of paper. Remove the paper and pull out the bottom battery as well. 
  6. Change both batteries. Use a flat screwdriver to pop out the batteries. 
  7. Slide in two new CR2025 batteries. Make sure that the negative (-) side is facing you. 
  8. Install the emergency metal key back in place.
  9. Align the two parts with each other and press them together. The two halves should snap together as shown in the video above.
  10. Test the Ford key fob remote by standing outside the car and pressing "Lock" or "Unlock" buttons. 


  • Ford Fusion
  • Ford Mustang
  • Ford F150 F-150


2013, 2014, 2015, 2016, 2017, 2018

Keyless Remote Battery Replacement 


Battery Size



Profile picture for user christopher
Gerald herche, 2017-04-07

Does the paper go back between batteries? Does the fist battery in go with - down and the second with - up?

Profile picture for user christopher
Visitor, 2017-04-08

The Negative (-) should face you, while the Possitive (+) faces the back cover. Both batteries go same direction. Therefore the - of the first battery should be touching the back of the second on the + side. The paper goes back the same as before.

Profile picture for user christopher
TriGuy, 2019-01-21

That's incorrect. Many of these 2 battery Ford fob's have the batteries going in opposite each other. Follow the orientation on the paper, which does show opposite orientation between top and bottom, with paper between the two batteries.

Profile picture for user christopher
Sharlette Madison, 2018-04-08

Should I have to replace the battery on a 2017 Ford 3 months into 2018? I expected maybe every 3 years. Is there something I could be doing that drained it this quickly?

Profile picture for user gbcumings

I've had the same problem and, although I drive little (only 3700 miles in the 9 months since I bought it), the notifications began about 3 months in and it finally gave up last week.

I thought that it could be due to having left the spare in the console for convenience in moving it around my "driveway/yard" and the less than 3 minute trip to my sister's house (where, of course, is where it died late at night and I'd accidentally left the other at home, haha?).

Did you by any chance do something similar? Maybe we just received some from an old/defective batch.

Profile picture for user christopher
Mkmueller, 2019-05-25

The Ford dealer told me when I bought my 2016 f150 not to leave the key fob in or close to the vehicle when not in use because it is constantly communicating with the vehicle and will wear out the batteries prematurely

Profile picture for user christopher
dvh, 2018-05-08

For the 2015 mustang I had to put the paper back in between, bottom battery facing positive up, top battery negative up (like the picture on the paper shows)

Profile picture for user christopher
Suzette Kimball, 2019-03-01

Trying to change batteries.. Batteries inserted as directed. NOW, can't snap battery cover and back cover on. Yes, i did watch the video. Any ideas.

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