How to Pair and Replace a Ford Key Fob Battery (Step-by-Step Guide)

Is your Ford key fob not working right? It might be the battery. Here’s a step-by-step guide compiled by the Stivers Ford of Montgomery team on the process of a Ford Key fob Battery Replacement to help you change your Ford Key Fob battery.

Signs Your Ford Key Fob Battery Needs to Be Replaced

A reliable key fob is essential for any driver. When you go out to unlock your vehicle or start it, you need to know that your key fob will work. Key fobs run on a battery, and your vehicle may not start if the battery is dead.

Luckily, your fob will likely show some signs that the battery is getting low. Some signs that your key fob battery is low include:

• Reduced range: A low battery will have a weaker signal. You may need to stand closer to the vehicle to lock or unlock it. 
• Delayed responses: If your fob only works occasionally or it takes a moment or several presses before the buttons register, the battery may be low. 
• Dashboard warning: Some vehicles have a dashboard light with a key battery low message. 
• Push-button start problems: If your Ford has a push-button start, the vehicle may not recognize the key fob if the battery is low. 

How to Open a Ford Key Fob and Change the Battery

Wondering how to replace a Ford key fob battery? It’s a quick and easy process. You’ll need a small flathead screwdriver, a new battery, and a clean, lint-free cloth. 

Before opening the fob, use the cloth to clean it. Removing dirt and oil will help prevent dirt from getting inside the fob. 

Determine Your Ford Key Fob Type

You’ll also want to determine what type of fob you have. Ford has produced a few different types over the years. You could have a:

• Flip key with a key that flips out of the body of the fob
• Smart key, a keyless entry fob with a remote start button
• Integrated key with a key hidden inside the fob that comes out if you need it

Opening the Ford Key Fob

First, determine how your specific key fob opens. Some will have a slot or notch where you can insert the flathead screwdriver or pry tool. Others could have a cover that slides. Once you find the seam or button on the edge of the fob, insert the screwdriver and gently twist until the two halves of the fob casing come apart. 

If the fob has a sliding cover, slide it off to open the battery compartment. Avoid using force so you don’t damage the casing. 

Changing the Ford Key Fob Battery

Once you have access to the battery compartment, you should see the battery held in place by a clip or just placed securely in a recess. Use your fingers or the screwdriver to remove the battery. Make sure to note its position, so you know how to put the new one back in. 

Place the new battery in the fob, making sure it’s oriented the same way as the one that came out. You’ll also want to make sure it’s placed all the way in its spot and is making good contact with the terminals. 

Now all you need to do is reassemble the fob casing. Align the two halves of the fob and gently press them together. 

What Type of Battery Does a Ford Key Fob Use?

Ford key fobs use a coin-style battery. The most common sizes are CR2032 and CR2025. Check your owner’s manual or the current battery to confirm which one you need. 

How to Pair or Reprogram a Ford Key Fob After Battery Replacement

If your Ford key fob is not working after the battery change and the battery is installed correctly, you might have to reset the fob. To reprogram a flip key, follow these instructions.

• Open the driver’s side door and push “Unlock.”
• Turn the ignition to “Off,” then turn it to”Run” eight times within a ten-second window.
• Make sure to end the cycle on “Run.”
• The doors should lock and unlock several times. If this doesn’t happen, start the process again.
• Push any button on the key fob within an eight-second interval to start programming.
• The car doors will then lock, and you are done.

Make sure to work on a clean surface and avoid touching any of the battery contacts with your fingers. Be careful when handling the new battery, making sure to hold it by the edges. Your fingertips contain oils that can affect the contact points.

Once you’ve replaced the battery and put the fob back together, test each of the buttons to make sure they work. Lock and unlock the doors and open the trunk. Watch the car for flashing lights when you press the buttons, and listen to make sure the locks are responding. 

You’ll also want to test the battery from a variety of distances. A new battery should be effective even if you’re 30 feet away from the vehicle, so make sure to test it when you’re not standing right next to the car. 

Ford Key Fob Setup for Ford Push-Button Start Vehicles

If you have a Ford Smart key fob, the setup is a little different. Start by putting the Intelligence Access Key that you need to set up in the center console. Put two additional key fobs that are already programmed in the vehicle. 

• Press the door unlock button on the driver and passenger sides three times.
• Push down on the brake pedal once and release.
• A Start/Stop button indicator should flash. This tells you that you are in programming mode.
• Press the Stop/Start button within one minute.
• The display screen will confirm that the key is programmed.
• Press the Unlock button on the key you’re resetting to exit the programming mode.

If you have any problems with your Ford key fob battery replacement, the service team at Stivers Ford of Montgomery can help.

Schedule Your Ford Key Fob Service at Stivers Ford of Montgomery

If you need help changing the battery or troubleshooting issues with your Ford key fob, don’t hesitate to call or stop by our service center. Contact Stivers Ford of Montgomery or call us at (888) 852-5646 to schedule a convenient service appointment with one of our trained technicians. You’ll find us at  4000 Eastern Bypass, Montgomery, AL 36116.