Ford Flex Key Fob Battery: A Complete Guide

When it comes to owning a Ford Flex, it’s important to know how to properly maintain all of its components, including the key fob. The key fob is essential for unlocking and locking your car doors, as well as starting your engine. In this article, we will provide a complete guide on everything you need to know about the Ford Flex key fob battery, including what kind of battery it takes, how to change it, and what to do if your key fob dies. Keep reading to learn more.

What kind of battery does a Ford Flex key fob take?

If you own a Ford Flex, you probably know that the key fob is a crucial component of your vehicle. This small device is responsible for unlocking and locking your car doors, as well as starting your engine. But what kind of battery does it take?

The Ford Flex key fob uses a CR2032 battery, which is a small, round, lithium cell battery. These batteries are widely available and can be purchased at most stores that sell batteries.

How do I change the battery in my Ford Flex key?

Changing the battery in your Ford Flex key fob is a quick and easy process. Here’s how you can do it yourself:

  1. Locate the small slot on the side of your key fob. This is where you will insert a small flathead screwdriver.
  2. Gently insert the screwdriver into the slot and twist it. This will open the key fob.
  3. Carefully remove the old battery and replace it with a new CR2032 battery. Make sure the battery is inserted with the positive side facing up.
  4. Put the key fob back together by pressing the two halves together until you hear a click.
  5. Test your key fob to make sure it’s working properly.

Can you start a Ford Flex with a dead key fob?

If your Ford Flex key fob battery dies, you may wonder if you can still start your vehicle. The answer is yes, but it’s a bit more complicated than just pressing a button.

Your Ford Flex key fob is equipped with a mechanical key that can be used to unlock your driver’s side door. Once you’re inside your vehicle, you can start your engine by pressing the brake pedal and pushing the start button with the key fob.

Keep in mind that this process may vary depending on the year and model of your Ford Flex. It’s always a good idea to consult your owner’s manual for specific instructions.

How long do Ford key fob batteries last?

The lifespan of a Ford key fob battery can vary depending on how often you use it, but most batteries last between two and three years. If your key fob stops working, it’s likely that the battery needs to be replaced.

To extend the life of your key fob battery, try to keep it away from extreme temperatures and avoid dropping it. It’s also a good idea to keep a spare battery on hand, just in case.


Now that you know how to change the battery in your Ford Flex key fob, you’ll be prepared in case your battery dies. Remember to use a CR2032 battery and follow the steps carefully to avoid damaging your key fob. If you have any questions or concerns, don’t hesitate to consult your local Ford dealership or a trusted mechanic.

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.