Ford Focus Key Fob Battery Remote Replacement 2000 – 2019

Are you having issues with your Ford Focus key fob battery replacement? You’ve come to the right place for help!

Keep reading to discover how to replace a dead battery in all categories of the Ford Focus car key models.

If you have a different fob than the ones discussed in this blog, see our Ford page for other options and battery types.

ModelTrimsGenerationYearsKey Fob TypeSubTypeRechargeable? Ease of changeBatteryBuy
FocusCoupe, Hatchback, Sedan3rd, 4th2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019Ford Slim Smart Key Battery Slim Smart Remote Key Smart KeyNoCR2032
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FocusCoupe, Hatchback, Sedan3rd, 4th2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019Ford Rounded Key Battery Rounded KeyCR2032
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FocusCoupe, Hatchback, Sedan, ST, RS1st, 2nd2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010Ford Square Fob (no key, 4-button) Battery Square FobRemote OnlyNoCR2032
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How to Replace the Ford Focus 2012 – 2019 Smart Key Fob Battery

How to change the 2012 to present Ford Focus key fob Battery
How to change the 2012 to present Ford Focus key fob Battery

Changing the fob battery in the smart remote key for the Ford Focus is simple and will take no more than a few minutes. Scroll down to see a video tutorial, or keep reading for detailed steps and a guide on how to change the battery of this key fob model.

You’ll need:

  • a small flathead screwdriver

  • a CR 2032

Step 1:

Find the latch behind the key fob and pull it towards you to pull out the valet key. 

Step 2:

Check for an open slot beside the valet key hole. Use a flathead screwdriver or the valet key to pry the fob key till the remote comes apart in halves. 

Step 3:

As soon as the key fob comes apart, one side carries the circuit board while the other houses the battery. Set aside the part with the circuit board. 

Step 4:

Enter the battery hole with a paperclip or small flathead screwdriver to release the old battery from the battery hole. Fix the new battery with the positive side facing down. Note that the positive side is the part with texts.  

Step 5:

After you have replaced the dead battery, place the two halves together and pop them back into place. Press round the key to ensure a snug fit

Step 6:

Slide the valet key back in, and your key is now complete!

Step 7:

You have successfully changed your key fob battery! Opening your doors can now be problem-free.

Here is my video where I show how to change this battery:

Ford Focus Remote Key Fob Battery Replacement 2012 - 2019

This is the battery for this Ford Focus slim key fob:


Amazon Basics 4 Pack CR2032 3 Volt Lithium Coin Cell Battery
  • IN THE BOX: 4-pack of CR2032 3 volt lithium coin cell batteries; replacement for BR2032, DL2032, and ECR2032
  • DEVICE COMPATIBLE: Ideal for watches, calculators, key fobs, Apple TV remotes, and other small electronics
  • DESIGNED TO LAST: 8-year leak-free shelf life

How to Replace the Ford Focus 2011 – 2019 Remote Key Fob Battery

Non-smart key remote battery replacement for the Ford Focus
Non-smart key remote battery replacement for the Ford Focus

This non-smart key remote for the Ford Focus requires a CR2032 battery to replace. Scroll down to watch my video or keep reading for a detailed guide on how to change it:

You will need (all of these items are available on Amazon):

  • a flathead screwdriver or another key

  • a CR 2032 battery

Step 1:

Check the top of the key for a notch. The notch is along the indentation line that separates the key in halves. Insert a flathead screwdriver or key into the notch at the upper right and twist. Gradually work your way down to the middle of the key, where the key ring attaches, till you get enough leverage to pop the key open in two halves.

Step 2:

After opening up the key, remove the rubber covering in the key and you’d have access to the old battery.

Step 3:

Flip the fob key over and the old battery will pop right out. Now install the new one with the positive side facing you.

Step 4:

Place the rubber cover back in position and place the two halves back together.

You can now lock and unlock your car with ease!

Ford Focus Remote Key Fob Battery Replacement 2011 - 2019

This is the battery for this Ford Focus remote key fob:


Amazon Basics 4 Pack CR2032 3 Volt Lithium Coin Cell Battery
  • IN THE BOX: 4-pack of CR2032 3 volt lithium coin cell batteries; replacement for BR2032, DL2032, and ECR2032
  • DEVICE COMPATIBLE: Ideal for watches, calculators, key fobs, Apple TV remotes, and other small electronics
  • DESIGNED TO LAST: 8-year leak-free shelf life

How to know when it’s time to replace your key fob battery.

When the battery life of your key fob is getting low, it is still possible to use it normally, but there may be some minor abnormalities. Perhaps you are struggling with these problems and are unaware of them. But these tiny inconveniences could potentially lead to some significant implications down the way. The following are signals that your key fob may show when the battery is low.

Range of the Signal Decreasing

Between 30 and 60 feet is the average range for a fob’s signal. However, the range at which your remote controls operate will be diminished if the battery powering it is depleted. Have you noticed that your fob demands you to get closer to the car than before? Or is the signal no longer transmitted over the parking lot, as it did when it was first installed? It’s probably the battery in your key fob. On the other hand, remember that rain can also weaken your device’s signal strength.

Clicks Are Inconsistent

Sometimes multiple presses of the fob button are required before the car recognizes the signal. When this occurs, it means that your battery is struggling to provide enough energy for the device to function. If this happens, you need to get a new battery for your key fob immediately. You need to change the battery if your key fob is also erratic and unresponsive to single presses.

 

Frequently Asked Questions

How do you start a Ford Focus with a dead key fob?

If you use the five-button Intelligent access key, put the key over the transmitter symbol, and start the automobile. The car recognizes keys even though they have no batteries. All you have to do is activate your engine by pressing the Start or Stop buttons.

How much does it cost to replace a Ford key fob?

The price of replacement key fobs will depend on several variables. It’s important to decide whether to hire a dealer or do it himself. If you take a Ford key fob back to dealers for reinstallation, the costs will vary between $75-200. If you decide to replace the keys on your Ford, the cost for a replacement will vary wildly depending on the brand and model. You can order an original battery on Amazon(website or physical store) at a good price with free shipping and delivery to save costs.

How do I reset my Ford key fob?

When the car cannot operate after replacing the battery, the key fob needs to go back on. If a key fob doesn’t work, there is probably a defective key inside the key fob. When this happens, it is usually best to take it up to dealers or locksmiths for programming or replacement.

Bottom Line

Car key fobs work in different ways. Some send a wireless signal from a receiver located in a vehicle to the key fob. After that, it will set off the alarm and activate the locking mechanism. Some others use rolling codes, which means that if a button on the remote is pressed, the key fob will send another code back. This means that a stranger or anyone unfamiliar with you is not authorized to utilize your vehicle without your prior consent. Regardless of the type and specifications of your car’s fob key, it has a very low battery life and consumes a significant amount of power throughout its use. When the battery is low, locking and unlocking your car door and other key performance will become difficult. It is best that you replace the battery in your keyfob once every one to two years to ensure that it functions correctly.