How to Change Battery in Ford Key Fob! A Simple DIY Guide!

How to change battery in Ford key fob.

An image of a key fob - How to change battery in ford key fob
How to change battery in Ford key fob | Photo credit: Reader’s Digest website

 

Similar to any battery-powered device, your Ford vehicle’s key FOB may require occasional battery replacement.

 

This is a rare occurrence, and in some cases, the same batteries may last throughout your ownership of the vehicle.

 

Nevertheless, if you notice that your key FOB, also referred to as a remote-control transmitter, is no longer functioning properly or showing signs of low power, we suggest replacing the batteries as the initial solution.

 

You can continue reading this article to discover how to do this easily at home, or you can watch our video guide for a visual demonstration.

 

How to change battery in a Ford key fob.

 

When the batteries for your key fob are dead then you need to replace them.

 

This is essential as the key fob is the tool that gives you access to lock and unlock your Ford remotely.

 

Follow the following steps to change batteries:

Step one of how to change the battery in the Ford key fob

 

To begin, the initial step is to release the key blade from the key FOB.

 

Depending on the Ford model, this process may involve manually extracting the blade.

 

There might be a special release button designed for this purpose on newer Ford versions.

 

Step two of how to change the battery in the Ford key fob

 

Now, a flat screwdriver will be used to pry open your key FOB.

 

The screwdriver’s end should be inserted into the side of the key, where the key blade typically rests.

 

The cover will be gently extracted, revealing the battery inside.

 

If the key FOB necessitates extracting the blade, a coin can also be used to wedge into the gap near the key, and then the cover can be twisted until it pops off.

 

Step three of how to change the battery in the Ford key fob

 

Next, the battery should be taken out by using the screwdriver to pry it out.

 

Initially, this might be a bit challenging since batteries are smooth and flat but using a screwdriver for prying will typically work effectively on most key fobs.

 

Step four of how to change the battery in the Ford key fob

 

Now, the replacement battery should be inserted.

 

Simply place it in the same position as the old battery, making sure that its plus side is facing upward.

 

If the new battery is installed upside down, the key fob will not function properly.

 

How do Ford key fobs work?

 

Tiny, battery-powered radio transmitters known as key fobs are used to send signals to a receiver in your vehicle.

 

While the transmission’s range is limited, the signal is encoded to increase security and prevent eavesdropping.

 

Commands are sent to the vehicle’s onboard receiver by the key fob.

 

The key fob is responsible for communicating with the computer controller to perform tasks such as unlocking doors, opening the rear hatch, and turning on the ignition.

 

To generate a specific signal that notifies the car of its presence, the fob must be close to the driver’s seat.

 

The engine can only be started by pressing the button while the fob is held near your body.

 

Image of key fob - How to change battery in Ford key fob
How to change battery in Ford key fob | Photo credit: Ford

 

Frequently Asked Questions

What happens if my Ford key fob battery dies?

 

The signal the ignition system is looking for cannot be broadcasted by your key fob if it has a dead battery.

 

When the correct signal is not detected by your car or truck, the ignition will remain locked.

 

Thus your car won’t be able to start with the fob in your pocket.

 

Do you have to reprogram a key fob when you change the battery?

 

After changing the battery, the key fob usually does not need to be reconfigured.

 

If you changed not only the batteries but also parts of the internal cabling and electronics, you may need to reset it by pairing it with your car again.

 

Conclusion

 

In conclusion, the process of changing the battery in a Ford key fob involves a few simple steps.

 

It is crucial to replace the battery when it runs out of power, as the key fob allows remote locking and unlocking of the Ford vehicle.

 

The key fob operates as a miniature, battery-powered radio transmitter that sends signals to a receiver in the vehicle.

 

To start the engine, the key fob must be close to the driver’s seat so as to generate a specific signal that notifies the car of its presence.

 

If the key fob’s battery dies, it won’t be able to broadcast the signal needed for the ignition system.

 

This results in the ignition remaining locked and the car cannot be started with the fob in your pocket.

 

However, in most cases, after changing the battery, reprogramming the key fob is not necessary.

 

Only if additional changes were made to the internal cabling and electronics might it be required to reprogram the key fob by pairing it with the vehicle again.

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