Is your 2010 Ford Fusion key fob acting up? A common culprit is a dead or dying battery. Replacing the battery in your 2010 Ford Fusion key fob is a straightforward task you can easily handle yourself, and this guide will walk you through not only the battery replacement but also how to reprogram your key fob if needed. Whether you’re facing a simple battery swap or need to resync your remote to your vehicle, we’ve got you covered with these easy-to-follow instructions.
Replacing the Battery in Your 2010 Ford Fusion Key Fob
Before diving into programming, let’s tackle the battery. A weak battery is often the reason why your key fob isn’t communicating effectively with your 2010 Ford Fusion. While specific steps can vary slightly depending on your exact key fob model, generally, you can replace the battery by:
- Locating the small notch or release button on your key fob casing.
- Using a small flathead screwdriver or your fingernail, gently pry open the casing.
- Carefully remove the old battery, noting the positive (+) and negative (-) orientation.
- Install a new CR2032 battery, ensuring it’s placed in the correct orientation.
- Snap the key fob casing back together until it’s securely closed.
Once you’ve replaced the battery, test your key fob to see if it now operates your door locks and other remote functions. If it still doesn’t work, or if you’ve just replaced the battery and are unsure if reprogramming is needed, proceed to the programming instructions below.
Programming Your 2010 Ford Fusion Key Fob
There are two main scenarios for programming your 2010 Ford Fusion key fob, depending on whether you are programming just the remote functions or a remote key combo that includes the transponder chip for starting the ignition.
Programming Instructions for Remote Only
These instructions are for programming the remote functions of your key fob, such as locking and unlocking doors, and remote start (if equipped). You will need all remote transmitters you intend to use with your vehicle at hand.
- Turn your ignition from OFF to RUN eight times within 10 seconds, making sure the eighth turn ends in the RUN position. “OFF” is where you can remove your key, and “RUN” is just before starting the engine. The door locks should cycle to confirm that you have successfully entered programming mode.
- Within 20 seconds of the door locks cycling, press any button on the first keyless remote you want to program. The door locks will cycle again to confirm successful programming of this remote. If you are only programming one remote, skip to step 4.
- If you have additional remotes, within 20 seconds of the last confirmation, press any button on the next keyless remote. Again, the door locks will cycle to confirm. Repeat this step for all remaining remotes you wish to program.
- Turn the ignition to the OFF position. The locks will cycle one last time to indicate the end of the programming mode.
Test each remote to ensure it is now correctly programmed to your 2010 Ford Fusion.
Programming Instructions for Remote Key Combo (Transponder Chip)
These steps are specifically for programming the transponder chip within a remote key combo, which is necessary for starting your 2010 Ford Fusion. Important: You must have two previously programmed, original Ford keys to perform this procedure.
- Insert your first previously programmed and working coded key into the ignition.
- Turn the ignition from the 1 (LOCK) position to the 3 (RUN) position. Keep the ignition in the RUN position for a minimum of 3 seconds, but no longer than 10 seconds.
- Turn the ignition back to the 1 (LOCK) position and remove the first coded key from the ignition.
- Within 10 seconds of turning the ignition to the LOCK position, insert your second previously coded key into the ignition.
- Turn the ignition from the 1 (LOCK) position to the 3 (RUN) position. Keep the ignition in the RUN position for at least 3 seconds, but not more than 10 seconds.
- Turn the ignition to the 1 (LOCK) position and remove the second coded key from the ignition.
- Within 20 seconds of turning the ignition to the LOCK position and removing the previously programmed coded key, insert the new, unprogrammed key (this could be a new key or a valet key) into the ignition.
- Turn the ignition from the 1 (LOCK) position to the 3 (RUN) position. Keep the ignition in the RUN position for at least 6 seconds.
- Remove the newly programmed coded key from the ignition.
If the new key was not successfully programmed to start your 2010 Ford Fusion, repeat steps 1 through 9. If the key starts the vehicle but the remote functions are not working, follow the “Remote Only Programming” procedure outlined above to program the remote portion of your remote head key.
By following these instructions, you should be able to replace your 2010 Ford Fusion Key Fob Battery and reprogram your key fob as needed, ensuring you maintain full access and functionality for your vehicle.
