Is your 2020 Ford Explorer ST key fob starting to act up? Perhaps it’s becoming less responsive, or maybe you’ve even seen a low battery warning light on your dashboard. Don’t worry, this is a common issue and thankfully, replacing the battery in your Ford Explorer ST key fob is a straightforward process you can easily do yourself. This guide will walk you through each step, ensuring you get your key fob back in top working condition in no time.
Understanding Your 2020 Ford Explorer ST Key Fob
The key fob for your 2020 Ford Explorer ST is more than just a key; it’s a sophisticated piece of technology that allows for keyless entry, remote start, and even hands-free liftgate operation. This convenient device relies on a small battery to power its functions. When this battery weakens, you might experience a decrease in range, intermittent operation, or complete failure of certain features.
Recognizing the signs of a low key fob battery is the first step in maintaining your vehicle’s convenience features. Common indicators include:
- Reduced Range: You need to be closer to your Explorer ST for the key fob to unlock the doors or start the engine remotely.
- Intermittent Operation: Buttons on your key fob may need to be pressed multiple times to work.
- Dashboard Warning Light: Your vehicle’s information display might show a “Low Key Fob Battery” message.
If you’re experiencing any of these symptoms, it’s likely time for a battery replacement.
Step-by-Step Guide to Replacing Your Key Fob Battery
Replacing the battery in your 2020 Ford Explorer ST key fob is a simple DIY task that requires minimal tools and time. Here’s how to do it:
What You’ll Need:
- A new CR2450 battery: This is the specific type of battery required for your key fob. You can find these at most drugstores, supermarkets, and online retailers.
- A small flathead screwdriver or a similar thin tool: This will be used to gently pry open the key fob.
- A soft cloth (optional): To protect the key fob casing from scratches.
Steps:
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Locate the Emergency Key Release: On the back of your key fob, you’ll find a small release switch or button. Press and hold this while simultaneously pulling out the emergency insert key. Set the emergency key aside.
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Open the Key Fob Casing: With the emergency key removed, you’ll see a small slot or seam where the two halves of the key fob casing meet. This is where you’ll insert your flathead screwdriver.
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Gently Pry Open the Casing: Carefully insert the tip of your screwdriver into the slot and gently twist. You may need to work your way around the seam, applying gentle pressure until the casing begins to separate. Avoid using excessive force to prevent damaging the plastic. The soft cloth can be placed between the screwdriver and the casing to minimize scratches.
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Identify the Battery: Once the casing is open, you’ll see the CR2450 battery. Note the orientation of the battery (+ side up or down) before removing it. This will ensure you install the new battery correctly.
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Remove the Old Battery: You can usually pry the old battery out with your fingertip or the edge of the screwdriver. Be careful not to damage the battery contacts.
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Insert the New Battery: Place the new CR2450 battery into the battery compartment, ensuring it’s oriented the same way as the old battery. You should feel it snap into place.
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Reassemble the Key Fob: Carefully align the two halves of the key fob casing and press them firmly together until they snap back into place. Ensure there are no gaps and the casing is securely closed.
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Reinsert the Emergency Key: Slide the emergency insert key back into the key fob until it clicks into place.
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Test Your Key Fob: Try locking and unlocking your Ford Explorer ST using the buttons on the key fob. Also, test the remote start and liftgate release functions to ensure everything is working correctly.
Why Choose DIY Battery Replacement?
Replacing your 2020 Ford Explorer ST key fob battery yourself offers several advantages:
- Cost Savings: Dealerships and locksmiths often charge a premium for simple battery replacements. Doing it yourself saves you money on labor costs.
- Convenience: You can replace the battery at your own pace and schedule, without needing to make an appointment or wait for service.
- Speed: The entire process typically takes just a few minutes.
Maintaining Your Key Fob Battery Life
While battery replacement is inevitable, you can take steps to maximize the lifespan of your 2020 Ford Explorer ST key fob battery:
- Avoid Extreme Temperatures: Extreme heat or cold can drain battery life faster. Try to keep your key fob away from direct sunlight or freezing temperatures for extended periods.
- Minimize Button Presses: Avoid accidentally pressing buttons on your key fob when it’s in your pocket or bag. Unnecessary transmissions can drain the battery.
- Store Key Fobs Separately: If you have multiple key fobs, storing them separately and away from your vehicle might help conserve battery life in the fobs that are not in regular use.
Troubleshooting and Further Assistance
In most cases, replacing the battery will resolve key fob issues. However, if you continue to experience problems after replacing the battery, there might be other underlying issues. Consider these troubleshooting steps:
- Double-Check Battery Installation: Ensure the battery is installed correctly with the proper orientation and is securely seated in the compartment.
- Try a Second New Battery: Although rare, a new battery could be faulty. Trying another new CR2450 battery can rule out this possibility.
- Consult a Professional: If problems persist, it’s best to consult with a qualified automotive locksmith or your Ford dealership. They can diagnose more complex issues, such as key fob programming problems or receiver malfunctions.
While programming is generally not needed after a simple battery replacement on a 2020 Ford Explorer ST key fob, in rare cases, or if you experience issues after replacement, you might need to have the key fob reprogrammed. Locksmiths and dealerships have the equipment to handle key fob programming and can assist with more complex key fob related problems.
Replacing the battery in your 2020 Ford Explorer ST key fob is an easy and cost-effective way to maintain the convenience and functionality of your vehicle. By following these simple steps, you can ensure your key fob is always ready to unlock your Explorer ST and get you on your way.
