How to Change the Battery in a Ford Key Fob?

Preparation Before Changing Battery in a Ford Key Fob

Prepare before changing the battery in your Ford key fob. Gather the right type of battery and a screwdriver. Consult the manufacturer’s instructions if you are not sure how to proceed.

  • Make sure you have everything you need!

Gather the necessary tools

Before you start roasting, make sure you have the necessary items. You’ll need a stovetop roaster, a fan or air-blower, a thermometer that reads up to 450°F (232°C), and heatproof (silicone) gloves. When buying the thermometer and/or stovetop roaster, get one that’s easy to read and uses Celsius or Fahrenheit.

You’ll also need an oven mitt, containers with lids for storing beans, cleaning tools like a towel, ventilator fan, dust mask, cloth or paper towels. Lastly, if you plan on pre-cooling your beans, have an ice chest and bagged ice ready.

Locate the battery compartment

Before you start, find the battery compartment. Most Ford models have it behind a little access door on the side or back of the key fob. Unscrew it with a Phillips-head screwdriver. Put away any screws.

Signs That Your Ford Key Fob Needs a New Battery

After that, take out the old battery and check its size and type. Buy a new one from a good source. Make sure it meets or beats the original equipment specs for better performance.

Removing the old battery

Changing the battery in a Ford key fob is not complex. It takes only a few steps!

  1. Use a tiny screwdriver or coin to open the fob.
  2. Use the same tool to take out the old battery.


Remove the key from the fob

To remove the aged battery from the Ford vehicle’s key fob, you need to divide the two fob shells. Get a flathead screwdriver, put it in one of the small slits on the back of the key fob. Firmly grip the screwdriver’s end, press on both fob sides ’til it divides. Then, take hold of the parts’ sides, carefully pull apart. This will uncover the old battery.

Unscrew the screws on the back of the fob

Before removing the battery, check the back of the fob. The number of screws varies, but most models have three. Unscrew them all to access the inside. If your fob has no screws, skip this step. Carefully remove the screws and keep them safe.

Look over the inside of the fob to find the old battery. Use gentle pressure with your fingers or tweezers to pry it out and remove it from its casing.

Carefully remove the battery

Changing the battery in your Ford key fob? Be careful! Before beginning, make sure you have a new battery ready. Look in the glove box for the key remover tool. Use it to remove the old battery carefully – without damaging the circuit board or internal parts.

Put the new battery in the slot – plastic contacts facing down. Make sure it’s properly seated before you start reassembling.

Installing the new battery

Replacing the battery in your Ford Key Fob? Simple! You just need the right battery, and a small flathead screwdriver. It’s easy and only takes a few minutes. Here’s how:

  1. Follow the steps and you’re done!

Insert the new battery

The battery compartment is ready for you to replace the old one. Get a battery that is the same spec as your original. Printed on the back or side? Check it out! Polarity marks? Note them down. Put it in and close the latch. Secure? Yep! Ready to try the new key fob!

Re-screw the screws

Once the battery is in, it’s time to put the back of the fob on. Stick the screws in their holes and tighten with a screwdriver. Low to medium setting is best. Check that the edges of the back cover are secure. If there’s a gap, your screws may not be tight enough.

When it looks good, try it out – it should work with your vehicle now!

Test the new battery

Open the Ford key fob and replace the old battery with a new one. Press any button. If the LED light doesn’t flash, check that the new battery is inserted correctly. If it flashes, the battery is installed correctly.

How to Replace a Ford Key Fob Battery

To test if the lock unlocking works, stand outside your vehicle with all doors locked. Hold down either one of its buttons for three to five seconds until you hear a clicking sound. If successful, one of the vehicle’s doors should be unlocked!

Congrats – you changed a Ford key fob’s dead batteries for fresh ones!

Finishing Up

Swap in the new battery. Then, put back the cover of the key fob. Make sure it’s secure so the battery won’t fall out. Test the key fob. Different types of key fobs need different methods to check if they work:

Re-assemble the fob

The battery has been changed and tested. Time to put the fob together again!

  • Put back the cover, make sure it’s secure.
  • Check if all the buttons work.
  • Test it once more.

If all is good, the battery is installed and your Ford key fob is ready to use.

Test the fob to make sure it is working properly

Change the battery in your Ford key fob and test it. Push one of the buttons while near the car door. If it’s working, you’ll hear a click sound from inside the car and see the lights flicker.

Put the cover back on. Put it in your pocket or purse. Now you’ve changed the battery and can be confident it will work.

Dispose of the old battery properly

The last step in replacing the battery in a Ford key fob is disposal. Used batteries can be recycled. But, be careful! Batteries have hazardous materials and should not be thrown in the trash.

Lots of stores sell new batteries and usually have a disposal container or bin to put the old battery in. If your store doesn’t have a disposal system, contact your local recycling center and ask where to take the old battery.

Frequently Asked Questions

Q: How do I change the battery in a Ford key fob?

A: To change the battery in a Ford key fob, you’ll need a small screwdriver or a flathead screwdriver. First, you’ll need to locate the tiny screw on the back of the key fob. Remove the screw, then pry the two halves of the fob apart to expose the battery. Remove the old battery, then insert the new battery making sure the positive and negative sides of the battery are facing the correct way. Finally, snap the two halves of the fob back together and replace the screw.

Q: What type of battery should I use for a Ford key fob?

A: The type of battery you should use for a Ford key fob is a 3V CR2032 lithium battery.

Q: How do I know when the battery in my Ford key fob is running low?

A: Generally, when the battery in your Ford key fob is running low, you won’t be able to start your car or the key fob will be slow to respond when you press the buttons.