2020 Jeep Cherokee Key Fob Replacement – Your Ultimate DIY Guide

Ever found yourself staring at a dead key fob, stranded in a parking lot, or worse, out on the trail? You’re not alone. Modern vehicles like your 2020 Jeep Cherokee rely heavily on these tiny transmitters, and when they fail, it can throw a wrench in your day – or your weekend adventure. The good news? A 2020 Jeep Cherokee key fob replacement doesn’t have to be a nightmare of dealership fees and long waits.

At FatBoysOffroad, we understand the frustration. That’s why we’re here to equip you with the knowledge and confidence to tackle this common issue yourself. We promise to walk you through everything, from diagnosing the problem to sourcing the right parts and even exploring programming options. By the end of this comprehensive guide, you’ll know exactly how to handle your 2020 Jeep Cherokee key fob replacement, potentially saving you a significant chunk of change and getting you back on the road – or off it – faster.

We’ll cover common problems, step-by-step replacement tips, cost-effective solutions, and essential care practices to keep your new fob functioning perfectly. Let’s get that Jeep back in action!

Table of Contents

Understanding Your 2020 Jeep Cherokee Key Fob

Before diving into a 2020 Jeep Cherokee key fob replacement, it’s crucial to understand what you’re working with. Your 2020 Jeep Cherokee likely uses a “proximity” or “smart” key fob, which allows for keyless entry and push-button start. This isn’t just a simple remote; it’s a sophisticated piece of technology.

Keyless Go/Push-Button Start: Your fob communicates wirelessly with your Jeep, allowing you to unlock doors and start the engine without physically inserting a key.
Integrated Emergency Key: Inside every smart key fob, there’s a physical metal key. This is your lifeline if the fob battery dies or the electronic system fails. You’ll use it to manually unlock the driver’s door and, in some cases, start the vehicle by placing the fob in a specific location (often near the start button or in a designated slot).
Internal Battery: Typically a CR2032 coin cell battery powers the fob’s electronics. These usually last 2-4 years, depending on usage.

Knowing these components helps you diagnose issues and understand the full scope of a replacement.

Common Problems with 2020 Jeep Cherokee Key Fobs

Even the toughest Jeeps have their quirks, and key fobs are no exception. Understanding the common culprits behind fob failure can save you from an unnecessary full 2020 Jeep Cherokee key fob replacement.

Dead Battery: This is by far the most frequent issue. Symptoms include reduced range, intermittent functionality, or a complete failure to lock/unlock doors or start the vehicle.
Water Damage: A quick dip in a puddle or a spin in the washing machine can spell disaster for the internal electronics. Even slight moisture can cause corrosion over time.
Physical Damage: Dropping your fob repeatedly, or letting it get run over (it happens!), can crack the casing, dislodge components, or damage the circuit board.
Software/Programming Issues: Less common, but sometimes the fob can lose its programming with the vehicle, especially after a car battery replacement or a significant electrical event.
Wear and Tear: Buttons can wear out or get stuck, and the internal contacts can degrade over years of constant use.

Before you jump to buying a whole new unit, a little troubleshooting can go a long way.

Diagnosing Key Fob Issues: Is It Replacement Time or Just a Battery?

Don’t reach for your wallet just yet! Many “dead” key fobs are simply suffering from a low or depleted battery. Here are some essential 2020 Jeep Cherokee key fob replacement tips that can help you determine the true problem.

Step-by-Step Troubleshooting for Your Key Fob

Check the Battery: This is your first and easiest step.
- Carefully pry open the key fob casing. Most 2020 Jeep Cherokee fobs have a small slot where you can insert a flathead screwdriver or coin to gently separate the halves.
- Note the battery type (usually a CR2032) and its orientation (+/-).
- Replace the battery with a fresh one. Ensure it’s a reputable brand for longevity.
- Reassemble the fob and test its functionality immediately.
Test the Emergency Key: If the fob still doesn’t work after a battery change, use the hidden emergency key to unlock the driver’s door manually.
- Remove the emergency key from the fob (there’s usually a small release button or switch).
- Insert it into the driver’s side door lock cylinder and turn.
Attempt Manual Start: For push-button start Jeeps, if the fob battery is dead, you can often start the vehicle by placing the fob directly against the START/STOP button or in a specific slot (check your owner’s manual for the exact location, as it varies). This uses an RFID chip in the fob that draws power from the car’s antenna for a brief moment.
Test Your Spare Fob: If you have a second key fob, try using it. If the spare works perfectly, it confirms the issue is with the original fob, not the vehicle’s receiving system.

If a new battery doesn’t revive your fob, and your spare works fine, then a full 2020 Jeep Cherokee key fob replacement is likely necessary.

DIY 2020 Jeep Cherokee Key Fob Replacement: A Step-by-Step Guide

So, you’ve diagnosed the problem, and a replacement is in order. This section is your comprehensive 2020 Jeep Cherokee key fob replacement guide, detailing how to get a new fob and get it programmed.

1. Sourcing Your New Key Fob

This is a critical decision that impacts cost and reliability.

Dealership (OEM): Buying directly from a Jeep dealership guarantees an original equipment manufacturer (OEM) part. It’s the most expensive option but ensures compatibility and comes with a warranty. They will also handle cutting the emergency key and programming.
Automotive Locksmith: A specialized automotive locksmith is often a fantastic middle-ground. They can supply new, aftermarket fobs (sometimes OEM), cut the emergency key, and program the fob for significantly less than a dealership. Look for one with good reviews and specific experience with modern Jeep systems.
Online Retailers (Aftermarket): You can find blank key fobs on sites like Amazon, eBay, or specialized automotive key sites.
- Pros: Potentially the cheapest option for the fob itself.
- Cons: Quality can vary wildly. You’ll still need to pay a locksmith or dealer to cut the emergency key and program the fob. There’s also a risk of buying an incompatible fob or a counterfeit.
- Pro Tip: If buying online, ensure the FCC ID and part number match your original fob exactly. Also, confirm the seller’s return policy.

For a 2020 Jeep Cherokee, programming a *brand new* key fob (one that has never been programmed to your vehicle) typically requires specialized diagnostic equipment. This means a true DIY programming from scratch is generally *not* possible without professional tools.

2. The Emergency Key: Don’t Forget It!

Even with a smart fob, the physical emergency key is crucial. When you get a new fob, it will come with a blank emergency key blade.

Cutting the Blade: A dealership or an automotive locksmith can cut this blank key to match your existing emergency key. This usually requires proof of ownership (title, registration, ID).
Why it Matters: This key is your backup for manually unlocking the driver’s door if the fob battery dies or if the vehicle’s electrical system has issues. Don’t skip this step!

3. Programming Your New Key Fob

This is where things get technical for a 2020 Jeep Cherokee. Due to advanced security features, programming a brand-new, unprogrammed fob to your vehicle usually requires specialized equipment that interfaces with the vehicle’s immobilizer system.

Dealer Programming: The most straightforward option. They have the factory tools and software to program the new fob to your Jeep’s security system. This is often bundled with the cost of the fob if purchased from them.
Automotive Locksmith Programming: Many reputable automotive locksmiths have the necessary diagnostic tools to program new key fobs for 2020 Jeeps. This is often more affordable than the dealership and can be done at your location.
DIY Programming (Limited Scope):
- If you have two *working* original fobs: Some Jeep models allow you to program a *third* fob yourself using a specific sequence involving the two existing fobs. However, this is rarely possible for adding a *first* or *second* fob if you only have one or zero working fobs. For a 2020 model, this method is often restricted. Always consult your owner’s manual for specific instructions.
- If you only have one working fob or none: You will almost certainly need a professional (dealer or locksmith) to program a new fob to your vehicle’s immobilizer. This process involves syncing the new fob’s unique ID with your Jeep’s computer.

Safety First: Attempting to program a fob yourself without the correct procedure can potentially corrupt your vehicle’s immobilizer data, leading to much more expensive repairs. When in doubt, call a professional.

Benefits of a Timely 2020 Jeep Cherokee Key Fob Replacement

Beyond the obvious convenience, there are several compelling benefits of 2020 Jeep Cherokee key fob replacement that make it a priority when your original fails.

Enhanced Security: A properly functioning fob ensures your vehicle’s alarm and immobilizer systems are always active, deterring theft. If your old fob was compromised or acting erratically, a new one restores full security.
Peace of Mind: No one wants to be stranded. Having a reliable, fully functional key fob (and ideally, a programmed spare!) means you can start your Jeep and go wherever your adventures take you, without worry.
Convenience and Comfort: Keyless entry and push-button start are features we quickly take for granted. A new fob brings back the effortless convenience you paid for, making daily drives and off-road excursions smoother.
Avoid Costly Lockouts: Replacing a failing fob *before* it completely dies can prevent expensive emergency locksmith calls or towing services when you’re locked out.
Maintain Resale Value: While a small detail, having two fully functional key fobs is expected when selling a modern vehicle and can slightly impact its perceived value.

Cost-Effective & Sustainable Key Fob Replacement Practices

Being a FatBoyOffroad enthusiast means being smart with your money and mindful of your impact. Here’s how to approach your 2020 Jeep Cherokee key fob replacement with both your wallet and the planet in mind.

Comparing Costs: Dealer vs. Locksmith vs. Online

Dealership: Expect to pay anywhere from $250-$500+, sometimes even more, for an OEM fob, key cutting, and programming. It’s the highest cost but the most hassle-free.
Automotive Locksmith: Often significantly cheaper, ranging from $150-$350 for a new fob (aftermarket or sometimes OEM), cutting, and programming. Prices vary by region and fob complexity.
Online (DIY Purchase + Professional Service): You might find a blank fob for $50-$150 online. However, you’ll then pay another $50-$150+ for key cutting and programming by a locksmith or dealer. Your total could be $100-$300+, but there’s more legwork and potential for incompatibility.

Recommendation: For a 2020 Jeep Cherokee, an experienced automotive locksmith often offers the best balance of cost, convenience, and expertise for a new key fob and programming.

Eco-Friendly & Sustainable 2020 Jeep Cherokee Key Fob Replacement

Let’s talk about being responsible with our old tech.

Recycle Batteries: Always remove the old coin cell battery from your dead fob and dispose of it properly. Many electronics stores, supermarkets, and municipal waste facilities have battery recycling drop-offs. Never toss them in regular trash.
Dispose of Old Fobs Responsibly: If your old fob is truly irreparable, check with local electronics recycling centers. Some places accept small electronics for proper disposal, preventing hazardous materials from entering landfills.
Consider Repair: For minor issues like a broken button or a cracked casing, sometimes a simple repair kit (new case shell, button pads) can extend the life of your existing fob, which is the most eco-friendly option of all.

Extending Your Key Fob’s Lifespan: Care and Best Practices

Once you have a new or repaired key fob, you’ll want to protect your investment. Here are some 2020 Jeep Cherokee key fob replacement best practices and a care guide to keep your fob functioning for years.

Key Fob Care Guide

Use a Protective Cover: A silicone or leather key fob cover can absorb impacts from drops, prevent scratches, and offer some resistance against moisture and dirt. Think of it as armor for your tiny tech.
Avoid Water Exposure: Key fobs are generally not waterproof, only splash-resistant. Keep it out of puddles, don’t swim with it, and be mindful of rain. If it does get wet, open it up, remove the battery, and let it air dry completely before reassembling.
Protect from Extreme Temperatures: Leaving your fob on the dashboard in direct sunlight on a hot day, or exposed to freezing temperatures for extended periods, can degrade the battery and electronics.
Keep Away from Strong Magnets & Electronics: While less common now, strong electromagnetic fields can sometimes interfere with fob signals or even corrupt programming. It’s a good habit to keep it separate from large electronics.
Change Battery Proactively: Don’t wait until the battery is completely dead. If you notice reduced range or intermittent issues, replace the battery. Many fobs will give a “low key fob battery” warning on your dash; heed it! Aim to replace the battery every 2-3 years as part of routine maintenance.
Keep a Spare: This is perhaps the best “care” tip. Having a second, fully programmed key fob stored safely at home ensures you’re never truly stranded and provides a backup if one is lost or damaged.

Frequently Asked Questions About 2020 Jeep Cherokee Key Fob Replacement

Can I program a 2020 Jeep Cherokee key fob myself?

For a brand-new, unprogrammed fob, true DIY programming without specialized tools is generally not possible for a 2020 Jeep Cherokee. You will almost certainly need an automotive locksmith or a dealership to program the new fob to your vehicle’s immobilizer system. If you have two *working* original fobs, you might be able to program a third yourself, but this varies by model and is rare for modern vehicles when starting from scratch.

How much does a new 2020 Jeep Cherokee key fob cost?

The cost varies significantly. A new OEM fob from a dealership, including cutting and programming, can range from $250 to $500+. An automotive locksmith might charge $150 to $350 for an aftermarket or OEM fob, cutting, and programming. Buying a blank fob online is cheaper, but you still need to factor in locksmith fees for cutting and programming.

What type of battery does a 2020 Jeep Cherokee key fob use?

Most 2020 Jeep Cherokee key fobs use a CR2032 coin cell battery. It’s always best to open your existing fob to confirm the battery type and orientation before purchasing a replacement.

What if I lose all my 2020 Jeep Cherokee keys?

Losing all your keys is the most expensive scenario. You will definitely need to contact a Jeep dealership or a specialized automotive locksmith. They will need to cut a new emergency key based on your VIN and program one or more new key fobs to your vehicle’s immobilizer system. This can be costly and time-consuming, so having a spare is highly recommended!

My key fob works sometimes but not always. What’s wrong?

Intermittent functionality is a classic sign of a dying key fob battery. Try replacing the battery first. If the problem persists, it could indicate internal damage (e.g., water damage, loose component) or an issue with the vehicle’s receiving antenna, which would require professional diagnosis.

Stay Connected, Stay Safe, and Keep Adventuring!

There you have it, fellow off-roaders and DIY enthusiasts! A dead key fob doesn’t have to put a damper on your adventures or empty your wallet. By understanding your 2020 Jeep Cherokee key fob replacement options, knowing when to troubleshoot versus when to replace, and practicing good care habits, you’re well-equipped to handle this common vehicle hiccup.

Remember, while some steps require professional tools, a significant portion of the process – from diagnosis to sourcing parts – is well within the reach of a careful DIYer. Always prioritize safety, and don’t hesitate to consult a professional for complex programming tasks. Keep your Jeep running smoothly, your wallet happy, and your trails open!

Stay safe and stay comfortable out there!

Author
Recent Posts

Thomas Corle

Founder & Automobile expert at FatBoysOffroad

Automobile expert and off-road enthusiast, sharing in-depth knowledge of vehicles, gear, and adventures. Helping readers make smart decisions and enjoy the thrill of off-roading safely and confidently.