How to Change Buick Key Fob Battery: Easy Step-by-Step Guide

One convenient feature of modern cars is the key fob, which allows you to lock, unlock, and even start your vehicle with the push of a button. However, like any electronic device, the key fob requires a power source to function properly. If you find that your Buick key fob is no longer working as it should, it may be time to replace the battery.

Identifying the Type of Buick Key Fob

Before you begin the battery replacement process, it’s important to identify the type of key fob your Buick uses. Buick vehicles may use different key fob models, each with varying methods of battery replacement. The most common types of Buick key fobs include:

Key Fob Model Battery Type
Standard Key Fob CR2032
Flip Key Fob CR2032
Smart Key Fob CR2032 or CR2450

Once you have identified the type of key fob your Buick uses, you can proceed with the battery replacement process.

Steps to Change Buick Key Fob Battery

Follow these steps to replace the battery in your Buick key fob:

Step 1: Gather The Necessary Tools

Before you begin, make sure you have the following tools on hand:

  • Flathead screwdriver or coin
  • New CR2032 or CR2450 battery
  • Small Phillips head screwdriver (for smart key fobs)

Step 2: Open The Key Fob

Use a flathead screwdriver or coin to carefully pry open the key fob. If you have a smart key fob, you may need to use a small Phillips head screwdriver to remove the screw on the back of the fob before you can open it.

Step 3: Remove The Old Battery

Once the key fob is open, locate the battery housing. Carefully remove the old battery from its slot, taking note of the orientation of the battery.

Step 4: Insert The New Battery

Take the new CR2032 or CR2450 battery and place it into the battery housing, ensuring that it is facing the correct direction as the old battery was.

Step 5: Close The Key Fob

Once the new battery is in place, carefully close the key fob, making sure that all components are properly aligned.

Step 6: Test The Key Fob

After replacing the battery, test the key fob to ensure that it is working properly. If the key fob still does not function, double-check the battery placement and try reinserting the battery.

Frequently Asked Questions For How To Change Buick Key Fob Battery: Easy Step-by-step Guide

How Do I Know If My Buick Key Fob Battery Needs To Be Changed?

To check the battery life, look for a low battery indicator on the fob’s display.

What Type Of Battery Is Used In Buick Key Fobs?

Buick key fobs typically use CR2032 lithium coin cell batteries.

Can I Change The Buick Key Fob Battery Myself?

Yes, you can easily change the battery by following the manufacturer’s instructions.

Where Can I Purchase A Replacement Battery For My Buick Key Fob?

You can find replacement batteries at most hardware stores or online retailers.


Changing the battery in your Buick key fob is a simple task that can be done at home with just a few basic tools. By following these steps, you can restore the functionality of your key fob and continue to enjoy the convenience it provides.

Remember to refer to your Buick vehicle’s owner’s manual for specific instructions and precautions related to the key fob battery replacement process. If you encounter any difficulties or are unsure about replacing the battery yourself, it’s always best to consult a professional or visit your local Buick dealership for assistance.

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