Will Disconnecting Battery Reset MyKey?

by Phil Borges // in Car

Ford, the world’s second-largest car manufacturer, offers a keyless entry system called MyKey. Ford MyKey is designed to help car owners protect their security by limiting specific driving capabilities. Whether or not disconnecting the battery in your car reset Ford MyKey depends on the age of your key fob and the type of car you have. If your car was made after 2012, this should work just fine; but if it was manufactured before 2008, it won’t due to the lack of an immobilizer system that can detect engine functions like fuel injection or ignition.

If your vehicle is equipped with an immobilizer system that detects fuel injection or ignition, disconnecting the battery will not reset the Ford MyKey and disable your car‘s engine function. Meanwhile, if your MyKey system doesn’t rely on engine function, disconnecting the battery will reset it, and you can use your key fob again.

How do I override Ford MyKey?

Ford MyKey limits 80 mph speed, disables audio volume above 50%, stops the entertainment system until seatbelts are fastened, and turns off the radio after 10 minutes of inactivity or if exceeding 15 mph in reverse gear.

Overriding Ford MyKey is most often done by reprogramming the keys. You’ll need to consult a professional mechanic to know the specifics of overriding Ford MyKey software.

How to reset MyKey without admin key?

Ford MyKey admin key is used to reprogram the MyKey system. It can be used to add or remove keys, change the maximum speed limit, and disable features such as audio volume control and speed limiter. However, you can still reset ford MyKey without admin key, below are the three methods:

  1. Reset through the service menu.
  2. Disconnect the battery.
  3. Remove from the vehicle using a special tool kit (which might not be available at many stores).

How do I factory reset a MyKey?

New cars don’t have an official way to reset your MyKey system. Thus, you should go into a dealership to reset it. But for older cars, you can do the process yourself.

In this case, we’ll be using a 2006 Ford F-150 King Ranch truck with MyKey technology. First off, disconnect your battery by removing the negative cable from the battery terminal and reconnecting after ten minutes to ensure that all power has been drained from the computer. Disconnecting and reconnecting act as a hard reset for your car’s MyKey system. Then, try to start the vehicle. It should say, “Mykey Activation Required” on your dash if you did it successfully.

Will removing the negative battery cable reset computer?

Removing the negative battery cable can lead to a MyKey ford reset. However, removing the battery cable on the car won’t reset the settings. It’s because once you reconnect it back up to power, your settings should be restored as before, even without having to do anything else.


Ford MyKey is a sensible security software developed by Ford Motor company to protect customers. It was developed with three goals: protecting your car, saving money, and keeping your family safe. The system adapts the vehicle settings according to different drivers to ensure a personalized driving experience. If you have MyKey installed on your Ford vehicle, disconnecting the battery will not reset this feature since the onboard processor stores it.

About the author, Phil Borges

Phil Borges is a battery aficionado. He's written extensively about batteries, and he loves nothing more than discussing the latest innovations in the industry. He has a deep understanding of how batteries work, and he's always on the lookout for new ways to improve their performance.