How to Change GMC Key Fob Battery: Essential Testing Tips Included

Ever found yourself locked out of your car with a key fob that’s lost its spark? It happens to the best of us. But fret not, because we’ve got your back! How would you like to effortlessly replace your GMC key fob battery in just a few simple steps? Sounds like a game-changer, right?

Step 1: Gather Necessary Materials

When it comes to changing the GMC key fob battery, you’ll need a few essential items to get the job done smoothly. Here’s what you’ll want to have on hand:

  • New CR2032 battery
  • Small flat-head screwdriver
  • Coin or similar object for opening the key fob
  • Clean cloth for any dirt or residue
  • Optional: Tweezers for handling the battery

Now that you have all the necessary materials, you’re well-equipped to tackle the task of replacing your GMC key fob battery.

Step 2: Locate the Battery Compartment

When changing the GMC key fob battery, the next step is to locate the battery compartment. This is usually found at the back of the key fob. You’ll need to look for a small indentation or groove along the edge of the key fob.

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Once you’ve identified the battery compartment, slide the small flat-head screwdriver into the groove. Apply gentle pressure to pry open the key fob. Be careful not to use too much force to avoid damaging the key fob.

After opening the key fob, you should see the CR2032 battery inside. It’s typically a round, silver battery that powers the key fob.

In some models, the battery may be held in place by a small clip. If this is the case, carefully remove the clip using the tweezers. Then, you can easily take out the old battery.

Remember to handle the battery carefully, as it may be too delicate for rough handling. Avoid touching the battery terminals, as this could affect its performance.

Step 3: Remove the Old Battery

To proceed with replacing your GMC key fob battery, it’s time to take out the old one. Here’s how:

  • Open the key fob: Gently separate both halves of the key fob to access the interior. Be cautious not to damage the key fob during this process.
  • Locate the old battery: Inside, you’ll find the CR2032 battery. Look for a small clip securing it in place, depending on your model.
  • Remove the old battery: Carefully dislodge the old battery from its position. Avoid touching the battery terminals directly to prevent any unwanted damage.

Battery Removal Step Summary

Step Details
Open the key fob Gently separate the key fob halves
Locate the old battery Identify the CR2032 battery inside
Remove the old battery Carefully detach the current battery without damage

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Step 4: Insert the New Battery

When it’s time to replace the old CR2032 battery in your GMC key fob with a new one, follow these steps to ensure a seamless process:

  • Step 1: Pick up your new CR2032 battery, making sure the positive (+) side is facing up.
  • Step 2: Carefully place the new battery into the designated slot inside the key fob.
  • Step 3: Gently press down on the battery to ensure it is securely in place; you should feel a slight click.

Remember, correct placement of the new battery is crucial for your key fob to function correctly.

Step 5: Test the Key Fob

After replacing the CR2032 battery in your GMC key fob, it’s crucial to test if the new battery is functioning correctly to ensure seamless operation. Here’s how you can do it:

  • Stand close to your vehicle and press the buttons on the key fob to check if it locks and unlocks the doors as expected.
  • If the key fob is equipped with other functions like remote start or trunk release, test those as well to verify complete functionality.
  • Pay attention to the response of your car to confirm that the new battery is transmitting signals effectively.

Remember, testing the key fob after battery replacement is essential to avoid any future inconvenience.


Ensuring your GMC key fob operates smoothly is key to a hassle-free experience. Testing the key fob post-battery replacement is vital to confirm its proper functionality. By standing near your vehicle and testing all functions, you guarantee seamless operation. Remember, observing your car’s response verifies the effectiveness of the new battery. This simple step can save you from potential future troubles.

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Frequently Asked Questions

Is it necessary to test the GMC key fob after replacing the battery?

Yes, it’s crucial to test the GMC key fob after replacing the battery to confirm proper functionality.

What steps should be taken to test the GMC key fob?

Stand close to the vehicle and test all key fob functions like locking/unlocking doors and remote start to ensure signal transmission.

Why is testing the key fob important after battery replacement?

Testing ensures the new battery is transmitting signals effectively, preventing future inconveniences with key fob functionality.

Battery industry professional with 5+ years of experience. Bachelor of Science in Electrical Engineering from Georgia Tech. Specializes in power systems and renewable energy.

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