Is your 2020 GMC Sierra key fob not working as reliably as it used to? Before you worry about expensive repairs or a trip to the dealership, the solution might be as simple as a battery replacement. For most 2020 GMC Sierra key fobs, the culprit behind a sudden loss of range or complete failure to operate is often just a dead battery. These fobs typically use a CR2032 3-volt battery, designed to last for several years. Luckily, replacing this battery is a straightforward process you can easily handle yourself at home with just a couple of common tools.
The most frequent reason your GMC Sierra key fob stops working is a depleted battery. These batteries, while long-lasting, do eventually need to be replaced. You might notice the range of your remote start or lock/unlock functions diminishing over time, signaling that the battery is getting weak. Completely replacing the battery at this point can save you from being stranded or locked out when the fob finally gives out entirely.
To perform a 2020 Gmc Sierra Key Fob Battery Replacement, you’ll only need a few simple items:
- A new CR2032 battery: These are widely available at drugstores, supermarkets, hardware stores, and online retailers. Consider buying a multi-pack to have spares on hand.
- A small flathead screwdriver: This will be used to gently pry open the key fob casing.
Now, let’s walk through the step-by-step process of replacing your 2020 GMC Sierra key fob battery:
-
Locate the Notch: Examine your GMC Sierra key fob. You should find a small notch or indentation on the casing. This is where you’ll insert the flathead screwdriver to begin opening the fob.
-
Carefully Pry Open the Casing: Insert the tip of your flathead screwdriver into the notch. Gently twist the screwdriver to separate the two halves of the key fob casing. Avoid using excessive force, as you could damage the plastic. The casing should pop open with minimal effort.
-
Identify Battery Orientation: Once the case is open, you’ll see the CR2032 battery. Before removing the old battery, take a moment to observe its orientation. Note which side is facing up (positive or negative). Most often, the positive (+) side will be facing upwards, towards the back cover of the fob. This is crucial for proper installation of the new battery.
-
Remove the Old Battery: Carefully remove the dead battery. You might be able to gently pry it out with your fingertip, or use the very tip of the flathead screwdriver if needed.
-
Install the New Battery: Place the new CR2032 battery into the battery compartment, ensuring that the orientation matches the original battery (positive side in the correct position, usually facing up). Push down gently to ensure it’s securely seated.
-
Reassemble the Key Fob: Align the two halves of the key fob casing and press them firmly back together until they snap securely into place. You should hear a click, indicating that the case is properly closed.
-
Test Your Key Fob: Once reassembled, test your 2020 GMC Sierra key fob to ensure it’s working correctly. Try locking and unlocking your doors, using the remote start, and any other functions your fob offers. In most cases, with a fresh battery, your key fob should be back to its normal operating condition.
If you’ve replaced the battery and your 2020 GMC Sierra key fob still isn’t functioning, there might be another issue. While a battery replacement resolves the vast majority of key fob problems, it’s possible that there’s a more complex issue with the key fob itself or your vehicle’s receiver. In these less common situations, it’s best to seek professional assistance.
If you continue to experience issues after a 2020 GMC Sierra key fob battery replacement, don’t hesitate to contact our service department. Our certified technicians can diagnose any potential problems with your key fob or your GMC Sierra’s electronic systems and get you back on the road with a fully functional key fob. We are here to help ensure your vehicle is working perfectly, from the key fob to the engine.
