Replacing the battery in your 2020 Ford Explorer key fob is a straightforward task that saves time and money compared to visiting a dealership. The key fob uses a standard CR2032 3V lithium coin cell, a battery type readily available at most pharmacies, grocery stores, and hardware shops. This guide provides a clear, step-by-step process to ensure your remote entry and panic functions remain fully operational.
Tools and Preparation
Gathering the necessary tools before starting is the best way to ensure a smooth and efficient battery replacement. You will not need any specialized mechanical tools for this procedure, and the entire process typically takes less than five minutes. Having everything ready minimizes the risk of damaging the key fob's casing or losing the small internal components.
Required Items
One CR2032 3V lithium coin cell battery.
A small, flat-head screwdriver or a sturdy coin.
A clean, well-lit workspace.
A soft cloth to protect the key fob from scratches.
Step-by-Step Replacement Process
The design of the 2020 Ford Explorer key fob requires a specific technique to open it without causing damage. It is crucial to apply pressure evenly to the seam rather than prying on a single corner. Following the correct procedure preserves the integrity of the plastic housing and ensures a secure reassembly.
Opening the Key Fob
Locate the small seam on the side of the key fob where the keychain ring is attached.
Insert the flat-head screwdriver or coin into this seam.
Apply firm and even pressure to pop the two halves of the fob apart.
Carefully separate the two halves, noting the position of the internal components.
Battery Replacement and Reassembly
Once the key fob is open, you will see the battery secured by a small plastic clip. This clip holds the battery in place and must be handled gently to avoid breaking. The positive side of the new battery, marked with a "+", should face the side of the fob with the metal contact point.
After inserting the new battery, ensure it is completely flush with the surrounding plastic. Reattach the internal metal contact strip and the circuit board in their original positions. Align the two halves of the key fob and press firmly along the seam until you hear a distinct click, confirming that the clip has locked back into place.
Programming and Testing
In most cases, the key fob will automatically sync with the vehicle's system upon reassembly. However, if the remote functions are not working correctly, a simple synchronization procedure is required. This step ensures the vehicle recognizes the key fob's signal.
Sync Procedure
To complete the programming, insert the key into the ignition and turn it to the "On" position without starting the engine. Press and hold the "Lock" and "Unlock" buttons on the key fob simultaneously for approximately 15 seconds. You will typically hear the doors lock and unlock, indicating a successful reset and pairing of the device.
