2017 Ford Explorer Key Fob – Master Battery Replacement, Programming
Your 2017 Ford Explorer key fob is more than just a remote; it’s your gateway to convenience and security. This comprehensive guide covers everything from simple battery changes to advanced programming, ensuring you’re never locked out or left stranded. Learn to troubleshoot common issues and maintain your fob like a seasoned pro.
Ever felt that sinking feeling when your SUV won’t unlock, or the engine refuses to start because of a dead key fob? It’s a frustrating experience, especially when you’re in a hurry or far from home. Your 2017 Ford Explorer is a capable vehicle, and its key fob is a vital link to its functionality.
This guide will empower you to tackle common issues with your 2017 Ford Explorer key fob, saving you time, money, and hassle. We’ll walk you through essential maintenance, troubleshooting steps, and even programming a new fob, ensuring you stay in control of your vehicle’s access and ignition.
Whether you’re a daily commuter, a weekend DIYer, or an off-road enthusiast who needs reliable access in remote areas, understanding your key fob is crucial. Let’s dive in and get you equipped with the knowledge you need.
Understanding Your 2017 Ford Explorer Key Fob
The 2017 Ford Explorer typically comes with an intelligent access key fob, often referred to as a “smart key” or “push-button start” key. This advanced device allows you to unlock doors, start the engine, and activate features like remote start without physically inserting a key into the ignition.
Components of Your Explorer Key Fob
Your key fob contains several critical components working in harmony. Inside, there’s a small circuit board, a transponder chip for engine immobilization, and a battery. Most fobs also include a hidden mechanical key blade, which is essential for emergency access.
Understanding these parts helps you diagnose issues. For instance, if your remote functions fail but the car starts when the fob is placed in the backup slot, it often points to a weak battery or signal issue, not a problem with the transponder.
Key Fob Functionality: What It Does
Beyond locking and unlocking, your 2017 Ford Explorer key fob offers a range of conveniences. These include remote start, a panic button, and sometimes a power liftgate release. For vehicles with passive entry, you can simply approach the door and touch the handle to unlock it, provided the fob is nearby.
The range of these functions can vary, usually between 30-50 feet, depending on environmental factors and battery strength. Keep your fob away from strong electromagnetic fields to ensure optimal performance.
DIY Battery Replacement for Your Explorer Fob
A dead key fob battery is the most common reason for an unresponsive remote. Fortunately, replacing it is a straightforward DIY task that can save you a trip to the dealership.
Identifying the Correct Battery Type
For most 2017 Ford Explorer intelligent access key fobs, you’ll need a CR2450 lithium coin cell battery. It’s always a good idea to double-check your owner’s manual or open your existing fob to confirm the battery type before purchasing a replacement. You can find these at most electronics stores, supermarkets, or online retailers.
Step-by-Step Battery Replacement
Here’s how to safely replace the battery in your 2017 Ford Explorer key fob:
- Retrieve the Emergency Key: Locate the small button or lever on the side or back of your key fob. Press or slide it to release the internal mechanical key blade. Pull the key blade out. This hidden blade is crucial for manual entry if your fob dies completely.
- Open the Fob Casing: With the key blade removed, you’ll see a small slot where the blade was. Insert a flat-head screwdriver or a thin coin into this slot and gently twist. The two halves of the key fob casing should separate. Be careful not to force it or damage the internal components.
- Remove the Old Battery: Once the casing is open, you’ll see the old coin cell battery. Note its orientation (which side is facing up – usually the positive ‘+’ side). Gently pry out the old battery using a small screwdriver or your fingernail.
- Insert the New Battery: Place the new CR2450 battery into the slot, ensuring the positive ‘+’ side faces the same direction as the old one. Incorrect orientation will prevent the fob from working.
- Reassemble the Fob: Carefully align the two halves of the key fob casing and press them together until they click securely. Reinsert the mechanical key blade until it locks into place.
- Test the Fob: Stand near your Explorer and test all the functions: lock, unlock, remote start, and panic. If everything works, you’ve successfully replaced the battery!
If you’re out on a camping trip or far from civilization and your fob battery dies, remember the mechanical key. It will get you into the vehicle, and you can usually start the car by placing the key fob in a specific backup slot (often in the center console or steering column) even with a dead battery. Consult your owner’s manual for the exact location.
Programming a New or Replacement Ford Explorer Key Fob
Whether you’ve lost your original fob or simply want a spare, programming a new 2017 Ford Explorer key fob can be a bit more complex than a battery change. While some older Ford models allowed a DIY programming sequence with two existing keys, the intelligent access system often requires specialized equipment.
When DIY Programming is Possible (and When It’s Not)
For the 2017 Ford Explorer with intelligent access and push-button start, DIY programming of a new key fob without any existing programmed fobs is generally not possible. These systems require a diagnostic scan tool that can communicate with the vehicle’s onboard computer (PCM or BCM) to add new keys.
However, if you have two existing, working intelligent access keys, you might be able to program a third one yourself using a specific sequence. This process is detailed in your owner’s manual, but generally involves cycling the ignition with the two existing keys before introducing the new one.
Professional Programming Options
If you only have one working key, or no keys at all, you’ll need professional help. Here are your options:
- Ford Dealership: This is the most reliable option. Dealerships have the proprietary diagnostic tools and software to program new fobs, cut emergency key blades, and ensure all security features are correctly configured.
- Automotive Locksmith: Many reputable automotive locksmiths have the necessary equipment and expertise to program intelligent access key fobs. They often offer more competitive pricing than dealerships and can sometimes provide mobile service. Ensure they specialize in modern vehicle key programming.
Always verify the locksmith’s credentials and ensure they can program your specific year and model before committing. Ask for a quote that includes the fob, key blade cutting, and programming fees.
Troubleshooting Common 2017 Ford Explorer Key Fob Issues
Beyond a dead battery, several other issues can prevent your key fob from working correctly. Here’s how to diagnose and potentially fix them.
Fob Not Responding After Battery Change
If you’ve just changed the battery and the fob is still unresponsive, double-check these:
- Battery Orientation: Ensure the new CR2450 battery is inserted with the correct polarity (+ side up).
- Battery Quality: Sometimes new batteries can be duds. Try another fresh battery if available.
- Connection Issues: Inspect the internal contacts within the fob for corrosion or bending. Gently clean them with a cotton swab and rubbing alcohol if necessary.
- Fob Damage: If the fob has been dropped or exposed to water, internal components might be damaged.
Intermittent Functionality or Reduced Range
If your fob works sometimes or only at very close range, consider these factors:
- Weak Battery: Even if not completely dead, a weak battery can cause reduced range. Replace it.
- Radio Interference: Strong electromagnetic fields from cell towers, power lines, or other electronic devices can interfere with the fob’s signal. Move your vehicle to a different location and retest.
- Vehicle Antenna Issues: Less common, but sometimes the vehicle’s receiving antenna (often located in the headliner or rear of the vehicle) can have issues. This usually requires professional diagnosis.
- Physical Obstructions: Large metal objects or concrete structures between you and the vehicle can block the signal.
Key Fob Not Starting the Engine (But Doors Unlock)
This is a specific issue that points to the transponder chip. If your doors unlock but the car won’t start (even with the fob in the backup slot), the issue isn’t the remote functions, but the transponder’s ability to communicate with the vehicle’s immobilizer system.
- Incorrect Fob: Are you sure it’s the correct fob for this vehicle? Sometimes fobs get mixed up.
- Fob Damage: The transponder chip inside the fob might be damaged. This often requires a new fob and professional programming.
- Vehicle Immobilizer Fault: Rarely, the vehicle’s immobilizer system itself can develop a fault. This will require dealership diagnosis.
In an emergency, especially if you’re in a remote area, remember to try the backup slot. If that fails, and you’re far from help, contacting roadside assistance is your best bet. Always keep your owner’s manual handy for specific emergency procedures.
When to Seek Professional Help for Your 2017 Ford Explorer Key Fob
While many key fob issues are DIY-friendly, some situations warrant professional intervention. Knowing when to call in the experts can save you time, frustration, and potential further damage.
Complex Programming Needs
As mentioned, if you need to program a new key fob and don’t have two existing, working intelligent access keys, you’ll need a dealership or a specialized automotive locksmith. They have the necessary diagnostic tools to communicate with your Explorer’s security system.
Suspected Internal Damage
If your key fob has been severely damaged – perhaps run over, submerged in water, or showing obvious signs of internal component failure – a simple battery change won’t fix it. A professional can assess the damage and advise on replacement options.
Water damage, in particular, can cause corrosion that leads to intermittent or complete failure. While some DIYers might attempt to clean a water-damaged circuit board with isopropyl alcohol, this is often a temporary fix, and a new fob is usually the more reliable solution.
Vehicle-Side Issues
If you’ve tried all the troubleshooting steps for your 2017 Ford Explorer key fob, including a new battery and checking for interference, but the problem persists, the issue might lie with the vehicle itself. Problems with the vehicle’s receiving antenna, immobilizer system, or body control module (BCM) can mimic key fob issues.
These complex electrical diagnoses require specialized diagnostic equipment and expertise, making a trip to a Ford dealership or a trusted automotive electrical specialist necessary. They can perform a thorough scan and pinpoint the root cause.
Maintaining Your Key Fob for Longevity
Proactive care can significantly extend the life of your key fob and prevent unexpected failures.
Protecting Your Fob from Damage
Your key fob is a delicate electronic device. Treat it with care:
- Avoid Drops: Impact can dislodge internal components or crack the circuit board.
- Keep it Dry: Water and electronics don’t mix. Avoid exposing your fob to rain, spills, or submersion.
- Extreme Temperatures: Don’t leave your fob in direct sunlight on the dashboard or in extremely cold conditions for extended periods, as this can degrade the battery and components.
- Key Fob Covers: Consider a silicone or leather key fob cover to add a layer of protection against drops and scratches.
Regular Battery Checks
Don’t wait until your battery is completely dead. If you notice a decrease in range or intermittent functionality, replace the battery proactively. Many fobs will give a “low battery” warning on the vehicle’s instrument cluster, but it’s wise to change it every 2-3 years regardless, especially if your Explorer is your daily driver or primary off-road rig.
Emergency Preparedness
Always know where your mechanical emergency key blade is and how to use it. Practice opening your door manually once in a while. Also, familiarize yourself with the backup starting procedure in your owner’s manual (placing the fob in a specific slot) for when the battery inevitably dies at an inconvenient time.
If you’re heading out on a long road trip or into remote areas, consider carrying a spare CR2450 battery and a small flat-head screwdriver in your glove compartment or emergency kit. This simple precaution can save you a lot of trouble.
Frequently Asked Questions About the 2017 Ford Explorer Key Fob
What kind of battery does a 2017 Ford Explorer key fob use?
Most 2017 Ford Explorer intelligent access key fobs use a CR2450 lithium coin cell battery. It’s always best to confirm with your owner’s manual or by opening your current fob.
Can I program a new key fob for my 2017 Ford Explorer myself?
If you have two existing, working intelligent access key fobs, you might be able to program a third one yourself using a specific sequence outlined in your owner’s manual. However, if you only have one or no working fobs, professional programming by a Ford dealership or an automotive locksmith is typically required.
My key fob unlocks the doors but won’t start the car. What’s wrong?
This issue usually indicates a problem with the transponder chip inside the key fob, which communicates with the vehicle’s immobilizer system. While the remote functions (lock/unlock) might still work, the car won’t recognize the key for ignition. Try placing the fob in the backup starting slot (refer to your owner’s manual) to see if it starts. If not, the fob may be damaged, or the vehicle’s immobilizer system could have a fault, requiring professional diagnosis.
How do I open the 2017 Ford Explorer key fob to change the battery?
First, release and pull out the hidden mechanical key blade. Then, use a flat-head screwdriver or a thin coin in the slot where the key blade was to gently pry apart the two halves of the fob casing. Be careful not to damage the internal electronics.
How far does the 2017 Ford Explorer key fob range extend?
The typical range for a 2017 Ford Explorer key fob is between 30 to 50 feet. This range can be affected by the battery’s strength, environmental interference, and physical obstructions between the fob and the vehicle.
Mastering the care and troubleshooting of your 2017 Ford Explorer key fob is a crucial skill for any vehicle owner. From a simple battery swap to understanding when to call a professional, this knowledge empowers you to maintain your vehicle’s accessibility and security.
Remember, proactive maintenance and knowing the basic functions of your fob can prevent minor inconveniences from becoming major headaches. Keep a spare battery, understand your emergency access options, and you’ll always be ready for the road ahead. Stay safe, stay smart, and keep exploring!
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