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Ford Key Fob Remote Battery Replacement Guide

Learn how to change the battery on Ford’s key fob remotes. Scroll down until you see the video on your particular Ford key fob.

Take a look at these videos, and if you prefer step-by-step instructions, those are provided for you below.

Watch how to change the battery on the most popular Ford key.

The following video shows how to replace the battery on Ford smart key.

Lastly, this video shows how to replace the battery on the Ford Intelligent Keyless key.

To change the battery in this Ford key, you will need one or two CR2025 batteries and a flathead screwdriver. This key fob has been used in Ford Fusion, Mustang, and F-150 from 2013 to 2018.

  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 the “Lock” or “Unlock” buttons.
ford key fob battery replacement

For this Ford key fob, you will need one CR2032 battery. Watch the video or follow the instructions below to learn how to change the battery in this Ford key fob.

  1. Flip the key on the backside and note the release switch.
  2. Press the release switch and slide out the metal key with your fingernail.
  3. Use the metal key to pry away the back cover.
  4. Note the battery on the back cover. Use a flathead screwdriver to pry out the old battery.
  5. Install the new battery with the positive (+) symbol facing the back cover.
  6. Align the back cover on the key fob and press it on.
  7. Slide the metal key into the key fob and test the key fob operation.

To change the battery in this Ford key, you will need a CR2032 battery. Watch the video or follow the instructions below for more help.

  1. Use a flathead screwdriver to pry apart the cover with the Ford logo.
  2. Use the screwdriver to pry out the battery.
  3. Install a new CR2032 battery with the positive side facing you.
  4. Align the two halves of the key and press them together until they close.

If your Ford doesn’t start or you are trying to troubleshoot a problem yourself, check out our guide on diagnosing vehicle problems.

These instructions help 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.

We hope you find the Ford Key Fob Remote Battery Replacement Guide helpful. Check these troubleshooting and repair guides for more help on your Ford.


  • Rushit Hila • ASE Certified

    Rushit Hila, an ASE-certified engineer (G1 Automotive Maintenance and Repair), brings over two decades of hands-on experience in the automotive world to his writing. With a strong educational background, including a Master of Science in Engineering and a Bachelor of Science in Engineering, he has honed his skills and expertise through years of practical work. As a respected authority in the field, Mr. Hila is dedicated to offering insightful and valuable content that resonates with both vehicle owners and mechanics.

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  1. Anonymous says:

    Internet needs to change bought the wrong battery. You all are bunch of useless oxygen thieves be specific you useless prices of shit

  2. Anonymous says:

    I have misplaced the piece of paper that goes in between the two batteries, can I use any piece of paper there, or do I need that specific piece of paper for it to work. It does not work without it. If I do need that specific kind, have any idea where I can get it from?

  3. Anonymous says:

    Some claim that a 2032 battery can replace a 2025. While both batteries are the same diameter the 32 is slightly thicker than the 25. I tried the 32 in my 2017 Explorer fob, as that was what I had on hand. They worked but I couldn’t fully click the halves of the fob together. One side was slightly apart and no matter how much pressure I applied it would not close properly. I replaced with the 2025 and they worked perfectly.

  4. Anonymous says:

    I have a 2017 Explorer. Battery died on my fob and when tried to start the car got the “No key detected message”. Fortunately I had seen that there is a solution to this. Open the console between the front seats. At the very front of the console is a “U” shaped fitting. Slide your key fob in there and you will be able to start and drive your car. Can’t see this fitting but it is there. Just remember that the fob still won’t work until you replace the batteries so if you go somewhere, don’t exit the car and lock the door.

  5. Anonymous says:

    My 2016 Ford Explorer Manual lists the wrong battery for Key Fob.

    The large maintenance manual states the Key Fob battery is a CR2032. But the batteries in the Key Fob are actually CR2025.

    A 2032 battery is .7mm thicker than a 2025! So, when you change batteries, it not possible to reassemble the key Fob plastic halves with the thicker battery.

    This mistake in the Ford Manual cost me several hours and a I also had to repurchase the correct batteries.

  6. Anonymous says:

    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

    1. (No subject)
      Did you know you could start any Ford with a dead key fob battery? There is a spot to place the dead fob, either under the cup holder or way down into the arm rest storage area. The chip in the key fob is recognized by your car…bingo. Your car starts right up! I found this in a Hacks for Your Ford video.

  7. Anonymous says:

    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.

  8. batterykid says:

    The newest Ford Smart key takes a larger CR2450 battery, but it’s a pretty easy change. Just pop out the valet key, pop off the back of the fob and you’re all set. See this list of all Ford key fob batteries.

  9. Anonymous says:

    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.

  10. Anonymous says:


  11. gbcumings says:

    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&nbsp 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&nbsp an old/defective&nbsp batch.

  12. Anonymous says:

    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)

  13. Anonymous says:

    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?

  14. Anonymous says:

    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.