How to Replace the Battery in a Ford Mustang Remote Key Fob (2018-2019)

Introduction

Replacing the battery in your Ford Mustang’s remote key fob is a simple task that can save you time and money. If you own a 2018 or 2019 Ford Mustang, this guide will help you through the process. Let’s get started!

Energizer Lithium Coin Blister Pack Watch/Electronic Batteries, 1 Count (Pack of 2)
  • Pack of 2 batteries
  • Lithium coin batteries for watches and electronic devices
  • Has a power of 3 volts

Gather Your Tools

Before you begin, ensure you have the right tools and battery. The process is straightforward and requires minimal equipment.

  • CR2450 Coin Battery
  • Small flat-head screwdriver

Remove the Internal Valet Key

The first step is to remove the internal valet key from the key fob. This allows access to the battery compartment.

  1. Flip the key fob over.
  2. Locate the button on the front side of the fob.
  3. Press the button to release the internal valet key.
  4. Remove the key from the fob.

Open the Battery Compartment

With the valet key removed, you can now open the battery compartment. This step requires a small flat-head screwdriver.

  1. Locate the two holes on the back of the fob.
  2. Insert the screwdriver into one of the holes.
  3. Gently pry the back cover off.

Be careful during this step to avoid damaging the fob. The back cover should pop off easily with minimal force.

Remove the Old Battery

Once the back cover is off, you can access the old battery. Follow these steps to remove it:

  1. Identify the CR2450 battery.
  2. Use the flat-head screwdriver to get leverage under the battery.
  3. Carefully pop the battery out.

Insert the New Battery

Now that the old battery is removed, it’s time to insert the new one. Ensure you have the correct orientation before placing it.

  1. Take the new CR2450 battery.
  2. Ensure the positive side (marked with a +) faces you.
  3. Place the battery into the compartment.

Reassemble the Key Fob

With the new battery in place, you can now reassemble the key fob. This step is as simple as reversing the disassembly process.

  1. Align the back cover with the fob.
  2. Press the cover back into place.
  3. Insert the internal valet key back into the fob.
Energizer Lithium Coin Blister Pack Watch/Electronic Batteries, 1 Count (Pack of 2)
  • Pack of 2 batteries
  • Lithium coin batteries for watches and electronic devices
  • Has a power of 3 volts

Conclusion

Congratulations! You’ve successfully replaced the battery in your Ford Mustang remote key fob. This quick and easy process ensures your key fob remains functional, saving you from potential hassles. Remember to dispose of the old battery properly.

FAQs

What kind of battery does the Ford Mustang key fob use?

The Ford Mustang key fob for 2018 and 2019 models uses a CR2450 coin battery.

How often should I replace the key fob battery?

Key fob batteries typically last 2-3 years. Replace the battery when the fob starts to show signs of low power.

Where can I buy a CR2450 battery?

You can purchase a CR2450 battery from various online retailers, Amazon.

Energizer Lithium Coin Blister Pack Watch/Electronic Batteries, 1 Count (Pack of 2)
  • Pack of 2 batteries
  • Lithium coin batteries for watches and electronic devices
  • Has a power of 3 volts

Do I need any special tools to change the battery?

A small flat-head screwdriver is the only tool required to change the battery.

Can I damage the key fob while changing the battery?

Yes, applying too much force or using the wrong tools can damage the key fob. Follow the steps carefully to avoid any damage.

Is it necessary to reprogram the key fob after changing the battery?

No, you do not need to reprogram the key fob after changing the battery. It should work as usual once the new battery is installed.

What should I do if the key fob does not work after changing the battery?

Ensure the battery is installed correctly. If it still doesn’t work, consider replacing the battery again or consulting a professional.

Can I use a different type of battery?

No, using a different type of battery than the CR2450 can result in improper function or damage to the key fob.

Additional Tips

Here are some extra tips to ensure the longevity and proper function of your key fob:

  • Keep spare batteries on hand.
  • Avoid exposing the fob to extreme temperatures.
  • Regularly check the battery level.

Final Thoughts

Maintaining your key fob is essential for the seamless operation of your Ford Mustang. A simple battery replacement can keep your remote key fob in top condition. Follow the outlined steps, and you’ll have a fully functional key fob in no time.

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