2020 Ford Explorer Key Battery – Quick Replacement For Uninterrupted Performance

A dead key fob battery can bring your day to a grinding halt, especially when you rely on your 2020 Ford Explorer for daily commutes or weekend adventures. This comprehensive guide provides everything you need to know about your 2020 Ford Explorer key battery, from recognizing the signs of a failing battery to a detailed, step-by-step replacement process. We’ll ensure you’re never left stranded, offering practical tips and expert advice for keeping your Explorer’s remote access reliable.

Ever found yourself juggling groceries with a key fob that just won’t unlock your 2020 Ford Explorer? Or perhaps you’re out on a trail, miles from anywhere, and your remote start suddenly fails to respond. A seemingly minor issue like a dying 2020 Ford Explorer key battery can quickly become a major inconvenience, impacting everything from your daily routine to your ability to access your vehicle in an emergency.

Here at EngineNeeds, we understand that car owners, DIY mechanics, and off-road enthusiasts alike value independence and reliability. This guide is crafted to empower you with the knowledge and confidence to tackle this common maintenance task yourself. We’ll walk you through the entire process, ensuring your key fob is always ready to go, just like your Explorer.

Don’t let a simple battery issue derail your plans. By the end of this article, you’ll be an expert at diagnosing and replacing your key fob battery, saving you time, money, and potential frustration. Let’s dive in and get your Explorer’s key fob working flawlessly once more.

Why Your Key Fob Battery Needs Attention

Your 2020 Ford Explorer’s key fob is more than just a simple remote; it’s an integral part of your vehicle’s security and convenience systems. It enables passive entry, remote locking/unlocking, and remote start functionalities. When the battery starts to weaken, these features can become unreliable or stop working altogether.

Recognizing the Signs of a Dying Key Fob Battery

Catching the signs early can prevent you from being locked out or unable to start your vehicle. Keep an eye out for these common indicators.

• Reduced Range: You might notice you have to be much closer to your Explorer for the remote to work.
• Intermittent Functionality: Sometimes it works, sometimes it doesn’t. This can be frustrating and unpredictable.
• Multiple Button Presses Required: Instead of a single press, you might find yourself pressing the lock or unlock button several times.
• No Response: The ultimate sign is when the fob simply does nothing, regardless of how many times you press a button.
• Dashboard Warning: Some Explorer models will display a “Key Fob Battery Low” message on the instrument cluster. Don’t ignore this!

The Impact of a Dead Fob on Your Daily Drive

A completely dead key fob battery can disrupt more than just your remote access. While your Explorer has an emergency physical key for entry and a backup starting method, relying on these constantly is inconvenient.

Imagine being out on a camping trip, needing to access your gear, and your fob won’t respond. Or perhaps you’re trying to use remote start on a cold morning, only to find it unresponsive. Keeping your key fob battery fresh ensures seamless operation and peace of mind, whether you’re in your driveway or far off the beaten path.

Essential Tools and Preparation for Key Fob Battery Replacement

Before you begin, gathering the right tools and understanding some basic precautions will make the process smooth and safe. This isn’t a complex task, but preparation is key.

Gathering Your Supplies

You won’t need a full toolbox for this job, but a couple of specific items are essential.

• Replacement Battery: The 2020 Ford Explorer key fob typically uses a CR2450 coin cell battery. It’s a good idea to confirm this by checking your owner’s manual or by opening your existing fob first. Purchase a reputable brand for longevity.
• Small Flathead Screwdriver or Pry Tool: You’ll need something thin and sturdy to gently separate the key fob casing without causing damage. A plastic pry tool (often used for interior trim removal) is ideal as it’s less likely to scratch.
• Clean Work Surface: A well-lit, clean area helps prevent losing small parts.

Safety First: Protecting Your Electronics and Yourself

Working with electronics, even small ones, requires a few simple precautions.

Always work in a clean, dry environment. Avoid touching the battery terminals or the circuit board with your bare fingers, as oils and static electricity can potentially cause issues. If you have anti-static gloves, now is a good time to use them. While the risk is minimal, it’s a good habit to protect sensitive electronics.

Step-by-Step Guide: Replacing Your 2020 Ford Explorer Key Battery

Now for the main event! This detailed guide will walk you through each step of replacing the 2020 Ford Explorer key battery. Follow these instructions carefully for a successful and hassle-free battery swap.

Opening the Key Fob Casing Safely

The first step is to access the internal components of your key fob. Be gentle but firm.

1. Remove the Emergency Key: Locate the small button or latch on the side or back of your key fob. Press or slide it to release the physical emergency key. Pull the key out completely. This exposes a slot or groove that will help you open the fob.
2. Locate the Seam: With the emergency key removed, you’ll see a seam running along the edge of the key fob casing. This is where the two halves meet.
3. Gently Pry Open the Fob: Insert your small flathead screwdriver or plastic pry tool into the slot where the emergency key was, or into the seam itself. Twist or gently pry to separate the two halves of the casing. Work your way around the seam if necessary, applying even pressure. You might hear a small click as the tabs release.
4. Separate the Halves: Once the tabs are released, the two halves of the key fob should separate relatively easily. Lay them down carefully, noting the orientation of the internal components.

Removing the Old Battery

With the casing open, the battery will be visible. It’s usually held in place by small clips or a snug fit.

1. Identify the Battery: You’ll see the coin-shaped CR2450 battery clearly. Note which side (positive or negative) is facing up. Typically, the positive (+) side faces upwards.
2. Gently Pry Out the Old Battery: Use your small flathead screwdriver to carefully pry the old battery out from its holder. Be cautious not to damage the battery clips or the surrounding circuit board. Avoid using excessive force.
3. Dispose of Properly: Coin cell batteries, especially lithium ones, should be disposed of responsibly. Many stores that sell batteries have recycling bins.

Inserting the New CR2450 Battery

This is where your fresh power source goes in. Correct orientation is crucial.

1. Position the New Battery: Take your new CR2450 battery. Refer to how the old battery was oriented (positive side up) and place the new battery into the holder with the positive (+) side facing the correct direction.
2. Secure the Battery: Gently press the new battery into place until it sits snugly within its clips or holder. Ensure it is flush and secure.

Reassembling and Testing Your Key Fob

Almost done! Now to put everything back together and confirm functionality.

1. Align the Halves: Carefully align the two halves of the key fob casing. Ensure all internal components, especially the rubber buttons, are correctly seated.
2. Snap the Fob Shut: Press the two halves together firmly until they click securely into place all around the seam. Check that there are no gaps.
3. Reinsert the Emergency Key: Slide the physical emergency key back into its slot until it locks securely.
4. Test the Fob: Go to your 2020 Ford Explorer and test all functions: lock, unlock, remote start (if applicable), and passive entry. If everything works, congratulations – you’ve successfully replaced your key fob battery!

Troubleshooting Common Issues After Battery Replacement

While replacing the key fob battery is generally straightforward, sometimes issues can arise. Don’t panic; most problems have simple solutions.

Fob Not Responding: What to Check

If your key fob still isn’t working after a battery change, here’s a checklist of things to investigate.

• Battery Orientation: Double-check that the new CR2450 battery is inserted with the correct polarity (positive side up).
• Battery Type: Confirm you used the exact specified battery type (CR2450). Using an incorrect size or voltage can prevent it from working.
• Battery Freshness: Ensure the new battery isn’t old or defective. Sometimes, even new batteries can be faulty.
• Connections: Open the fob again and visually inspect the battery terminals and the circuit board for any bent clips or debris that might be preventing a good connection.
• Fob Damage: If the fob was dropped or previously damaged, the issue might be internal, beyond just the battery.

Emergency Access and Starting Your Explorer

Even with a dead key fob battery, you’re not entirely locked out of your Explorer. Ford designed backup methods for these situations.

Use the physical emergency key (which you removed to open the fob) to manually unlock the driver’s side door. Once inside, you can still start your Explorer. Place the key fob directly into the backup slot (usually found in the center console or a designated area near the steering column, consult your owner’s manual). This slot allows the vehicle to detect the fob’s transponder chip even without battery power, enabling you to start the engine. This is a lifesaver if you’re stuck far from civilization, perhaps after a long day of off-roading.

Extending the Life of Your Ford Explorer Key Fob Battery

A little care goes a long way in maximizing the lifespan of your key fob battery. Understanding what drains it can help you make informed choices.

Best Practices for Key Fob Care

Treat your key fob like the important piece of technology it is.

• Avoid Drops: Repeated impacts can loosen internal components or damage the circuit board.
• Keep it Dry: Water and electronics don’t mix. If your fob gets wet, open it, remove the battery, and let it dry thoroughly before reassembling.
• Protect from Extreme Temperatures: Leaving your key fob in direct sunlight on a dashboard or in extremely cold conditions can shorten battery life.
• Avoid Exposure to Strong Magnetic Fields: While rare, strong magnetic fields can sometimes interfere with electronic devices.

Understanding Battery Drain Factors

Several factors can contribute to a shorter-than-expected battery life for your 2020 Ford Explorer key battery.

Constantly keeping your key fob very close to your Explorer, even when parked, can cause it to “wake up” and communicate with the vehicle more frequently, leading to faster battery drain. If you have passive entry enabled and frequently walk past your vehicle with the fob in your pocket, this can also contribute. Similarly, using features like remote start frequently will put more demand on the battery. Extreme hot or cold weather can also impact battery performance and longevity. Consider storing your spare key fob further away from the vehicle to preserve its battery.

When to Seek Professional Help

While most key fob issues boil down to a simple battery change, there are times when professional intervention is warranted. Knowing when to call in the experts can save you time and prevent further damage.

Beyond a Simple Battery Change: Fob Malfunctions

If you’ve replaced the battery correctly and your key fob still isn’t working, or if it’s behaving erratically, the problem might be more complex. This could indicate a damaged circuit board, issues with the buttons, or a need for reprogramming.

Sometimes, a key fob might lose its programming to the vehicle, especially after a battery change, though this is rare with modern Ford fobs. If your vehicle consistently fails to recognize the fob, even the emergency start method, it’s time for a diagnostic check.

Ford Dealership vs. Independent Automotive Specialists

For complex key fob issues, you have a couple of options. A Ford dealership will have specialized diagnostic tools and trained technicians familiar with all aspects of your 2020 Ford Explorer’s security system. They can reprogram fobs, diagnose internal damage, or order new ones.

However, many independent automotive locksmiths or advanced auto repair shops also have the equipment to diagnose and repair key fob issues, often at a more competitive price. If you’re unsure, a quick call to both can help you decide the best course of action. Always ensure any professional you consult is reputable and experienced with modern vehicle electronics.

Frequently Asked Questions About Your 2020 Ford Explorer Key Battery

We’ve covered a lot, but here are some quick answers to common questions you might still have.

What type of battery does a 2020 Ford Explorer key fob use?

The 2020 Ford Explorer key fob typically uses a CR2450 coin cell battery. It’s a 3-volt lithium battery. Always confirm this by checking your owner’s manual or the old battery itself when you open the fob.

How long does a 2020 Ford Explorer key battery typically last?

On average, a 2020 Ford Explorer key battery lasts between 2 to 4 years. However, this can vary significantly based on usage frequency, environmental factors, and how often the fob is near the vehicle, which can cause it to “wake up” and communicate more often.

Can a dead key fob battery prevent my Explorer from starting?

No, a dead key fob battery will not prevent your 2020 Ford Explorer from starting. While you won’t be able to use remote start or passive entry, your Explorer has a backup method. You can use the physical emergency key to unlock the door, and then place the dead key fob in a specific backup slot (usually in the center console) to allow the vehicle to detect its transponder and start the engine.

Is it hard to replace the key fob battery myself?

Not at all! Replacing the 2020 Ford Explorer key battery is a relatively simple DIY task that requires minimal tools and takes only a few minutes. Our step-by-step guide above provides all the instructions you need to do it successfully.

Will I need to reprogram my key fob after changing the battery?

In almost all cases, no. Modern Ford key fobs are designed to retain their programming even after the battery is removed. You should not need to reprogram your key fob after simply replacing the battery. If you experience issues, double-check the battery installation first.

Keeping your 2020 Ford Explorer key battery in top shape is a small but crucial part of maintaining your vehicle’s reliability and your peace of mind. By understanding the signs of a dying battery, having the right CR2450 on hand, and following our straightforward replacement steps, you’ll ensure uninterrupted access and functionality.

Remember, prevention is always better than a roadside emergency. A quick check of your key fob’s performance every few months can save you from inconvenient situations, whether you’re heading to work or embarking on an adventurous off-road journey. Keep those spare batteries handy, and don’t hesitate to consult your owner’s manual or a professional if you encounter more complex issues.

Stay prepared, stay safe, and enjoy every mile with your Explorer!