How To Change The Battery In A Buick Key Fob: Easy DIY Guide

How to change the batery in a Buick key fob

“I need a quick guide on how to change the battery in a Buick key fob.”

Changing the battery in your Buick key fobs is an easy and fast process. The best part? It doesn’t require many tools.

However, ensure you have the essentials such as the new battery you’re planning to replace the old one with and a screwdriver before getting started.

Be rest assured that this page is your one-stop shop for changing Buick key fob batteries. To find out which device you have, what battery it takes, and how to open it—just scroll down and select your Buick model from the “Buick Vehicle Models” list.

If you click “Encore,” for example, you will be taken to a page with easy-to-follow video tutorials for every Buick Encore key fob used over the years.

Alternatively, you can stay on this page and scroll down to the bottom to see video tutorials for all possible Buick key fobs. Just find the video that shows your device in the thumbnail and click to play.

Our video tutorials show you everything you need to know to replace your battery at home, without any special tools or experience!

Looking for a different model? Find Buick Encore Model here. 

PICTUREKEYYEARSBUY BATTERY
Smart2017 - 2022Check on Amazon
Flip2010 - 2022Check on Amazon
Classic2005 - 2017Check on Amazon
Simple2005 - 2017Check on Amazon
Egg-shaped2001 - 2007Check on Amazon
Rounded1996 - 2007Check on Amazon

How to change the batery in a Buick key fob

How to Change the Battery in a Buick Key Fob: “Smart”

(2017-2021)

If your key fob is not exactly like the one you see in the video, don’t worry. You still have the same device, just a different version. The process is the same for both so keep reading for the step-by-step instructions or scroll down for the short video tutorial on your Buick key fob battery replacement DIY.

What you will need:

  • 1x CR2032 battery
  • A regular flathead screwdriver.

Step 1

Turn the key fob over, hold down the silver button, and pull out the internal key. You will use this key to separate the back piece of plastic of the device.

Step 2

Now, insert the key into the keyhole (halfway through) and pull it back. The piece of plastic will come off. Set it aside.

Step 3

Time to get the old battery out. Use your flathead screwdriver to gently lift up the battery. Or simply use your fingers to remove it.

Step 4

You can now replace the dead battery with your new CR2032 battery. With the positive side facing down, click it into the right place.

Step 5

Finally, reattach the key fob parts securely, and you’re good to go.

Excellent job! Lock and unlock your car doors with ease.

Buick Encore Key Fob Battery Replacement (2017 - 2022)

This is the battery you need for the Buick “Smart” key fob:

How to Change the Battery in a Buick Key Fob: “Flip”

In case your device has three buttons instead of four buttons as shown in the video below, you’ve got nothing to worry about. It’s the same process. Thankfully, you don’t need any special tool to do this.

What you will need: 

  • 1x CR2032 battery

Step 1

Hold on to the button on the device to flip out the mechanical key.

Step 2

Now, from where the key came out, use your finger, preferably, your thumb, to push up the small plastic at the back.

Step 3

To remove the battery, push it on the side covered with a piece of plastic. You might need to apply a little bit of pressure to get it out.

Step 4

Now take your new CR2032 battery and slide it in with the positive side facing up. 

Step 5

The last thing is to return the back piece of plastic and squeeze it together. Remember to put back the mechanical key.

There you go! All done like a pro.

Buick LaCrosse Key Fob Battery Replacement (2010 - 2016)

This is the battery you need for the Buick “Flip” key fob:

How to Change the Battery in a Buick Key Fob: “Classic”

There are a few different versions of the Buick “Classic” key fob. You may have a 6-button version, or maybe a 4-button one. It actually doesn’t matter which version you have—they all open exactly the same and take the same battery. Click on either video below to see how to change your device’s battery.

What you will need:

  • 1x CR2032
  • A regular flathead screwdriver

Step 1

Locate the little slot right where the key is attached

Step 2

Now insert your screwdriver into the slot and twist gently to open up the device slightly. You can either use your fingers now or continue working the screwdriver down for complete separation.

Step 3

Next, gently lift out the circuit board holding the battery.

Step 4

Remove the old battery with your thumb.

Step 5

Insert the new battery and ensure the positive side goes in face up. 

Step 6

Return the circuit board into the case, place the key fob cover on top, and click together.

You’re all set! Well done job.

Buick Terraza Key Fob Battery Replacement (2005 - 2007)

Buick Enclave Key Fob Battery Replacement (2008 - 2017)

This is the battery you need for the Buick “Classic” key fob:

How to Change the Battery in a Buick Key Fob: “Simple”

Buick Enclave Key Fob Battery Replacement (2008 - 2017)

There is also a 3-button version of the “Simple” Buick key fob. In the video below, I show you how to open that particular device.

You may notice that in the below video, my key fob actually has 4 buttons. This is just the version that I happen to have. But, whether you have 3 or 4 buttons, you can follow this tutorial, all the same, to learn how to change your battery, the process is the same for all “Simple” key fobs.

Buick Terraza Key Fob Battery Replacement (2005 - 2007)

This is the battery you need for the Buick “Simple” key fob:

Buick key fob battery replacement DIY

How to Change the Battery in a Buick Key Fob: “Egg-Shaped”

This Buick key fob battery replacement process is super easy to do and requires no special tools except the new CR2032 battery, of course.

What you will need: 

  • 1x CR2032 battery
  • A regular flathead screwdriver (or a coin)

Step 1

Look down where the keyring attaches and locate the little indentation along the seam.

Step 2

Insert your flathead screwdriver or coin into the space and twist. You need to apply pressure to crack this particular key fob open.

Step 3

Pull out the dead battery with your fingers or use the corner of the flathead screwdriver. Dispose of the old battery.

Step 4

Next, fix in your new CR2032 battery with the positive side facing down. The right way to replace the battery is by pushing it toward the metal component and clicking it down on the other end.

Step 5

Finally, put the key fob parts back together and you’re good to go. 

Feels good to change your Buick key fob battery without paying a dime, doesn’t it?

Buick Century Key Fob Battery Replacement (2002 - 2005)

This is the battery you need for your Buick Key Fob Battery.

How to Change the Battery in a Buick Key Fob: “Rounded”

If you have different buttons from what I show in the video, it’s still the same process and you don’t even need any special tools except the battery. So read along to learn how to change the battery in your Buick key fob.

What you’ll need:

  • 1x CR2032
  • A flathead screwdriver

Step 1

Use a coin to open up the key fob. Insert the coin and twist. YOu don’t need to apply too much pressure.  

Step 2

Remove the dead battery with your fingers or lift it up with the corner of a screwdriver.

Step 3

Replace the old battery with a new CR2032 battery. Keep the positive side facing down.

Step 4

Line up the key fob parts back into place, click them together, and you have yourself a new working key fob. 

That was pretty easy, yeah?

Buick Rainier Key Fob Battery Replacement (2004 - 2007)

This is the battery you need for the Buick “Rounded” key fob:

How to replace the Buick key fob battery in a Buick

Frequently Asked Questions

What type of battery does a Buick key fob take?

All Buick key fobs use CR2032 batteries. Also, these 3v coin batteries last a long time and only cost a dime. You can get them on Amazon store by ordering. It’s super easy and takes less time to deliver. 

Where can I buy Buick key fobs batteries?

For the best prices, you should buy the batteries on Amazon. Your battery will come right to your doorstep—no need to shop around the hardware store. Here is the battery used in all Buick key fobs: CR2032 battery. Click on the battery to buy it on Amazon.

How much does it cost to replace a Buick car key?

Fixing your key fob at a dealership will cost you significantly more than doing it yourself. If the only issue is a dead battery, you can order a new battery on Amazon and follow one of our tutorials to change it yourself.

The battery costs just a couple of bucks and the entire process only takes about five minutes. However, if your key fob is broken you may need to replace it, which will be more expensive.

How do you change the battery in a 2018 Buick key fob?

The process of changing your Buick key fob battery depends on which key fob type you have. Some years have many different key fobs in use simultaneously—so there is no one correct answer here.

See the table at the top of this page to find your specific device.

How do you change the battery in a Buick Enclave key fob?

Most Buick models have multiple possible key fobs depending on the year and trim. To see how to change the battery in your specific Enclave key fob, scroll up to the top of the page and click on “Enclave” from the “Buick Vehicle Models” list.

Final Thoughts – How To Change The Battery In A Buick Key Fob

So you’ve learned how to change the battery in a Buick key fob, now go ahead and give it a try. Remember to use the exact battery type as the old one you’re replacing. Be sure to check the manual for the type of key fob you use and the battery type you need. Scroll up to find links to purchasing your key fob battery type online. 

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