Jeep Cherokee Key Fob Battery Replacement: Quick & Easy Guide

Is your Jeep Cherokee key fob acting up or completely dead? A drained key fob battery can leave you stranded or struggling to unlock your vehicle, turning a simple task into a frustrating hassle.

But don’t worry—you can fix this yourself quickly and easily. In this guide, you’ll learn exactly how to replace your Jeep Cherokee key fob battery, step by step, using simple tools you probably already have. Keep reading to regain full control of your Jeep without the need for costly dealer visits or waiting around for help.

Your hassle-free solution starts here!

Battery Types

Jeep Cherokee key fobs use specific battery types to ensure proper function. Knowing the right battery helps with quick replacement and avoids damage. Two main batteries fit most Jeep Cherokee key fobs. Each type has its own size and power capacity.

Cr2032 Battery

The CR2032 is the most common battery type for Jeep Cherokee key fobs. It measures 20mm in diameter and 3.2mm thick. This battery offers reliable power for remote locking and unlocking. It fits many older Jeep Cherokee and Grand Cherokee models. The CR2032 is easy to find in stores and online. It provides a long battery life, typically lasting over a year. Replacing the CR2032 is simple and helps keep your key fob working well.

Cr2450 Battery

The CR2450 battery is larger than the CR2032. It measures 24.5mm in diameter and 5.0mm thick. This battery delivers more power and lasts longer. Some newer Jeep Cherokee key fobs use the CR2450 for better performance. It fits key fobs with bigger battery compartments. The CR2450 is slightly more expensive but worth the extra cost. Using the correct battery type ensures your key fob stays reliable. Always check your key fob model before buying a CR2450 battery.

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Tools Needed

Replacing the battery in your Jeep Cherokee key fob requires just a few simple tools. Having these tools ready makes the job quick and easy. You do not need special equipment. Basic tools can help you open the fob and swap the battery safely.

Keep in mind, using the right tools prevents damage to your key fob. This keeps it working well after the replacement. Below are the main tools you need for this task.

Flathead Screwdriver

A small flathead screwdriver is essential. It helps you pry open the key fob carefully. Use gentle pressure to avoid scratching or breaking the plastic. The screwdriver fits into the seam of the fob and allows you to separate the two halves smoothly.

Choose a screwdriver with a thin tip for better control. This tool makes the battery replacement process much easier.

Replacement Battery

Your Jeep Cherokee key fob uses a specific battery type. Most models require a CR2032 battery. Some newer models might use a CR2450. Check your key fob or owner’s manual to confirm the correct battery size.

Buy a fresh, high-quality battery. This ensures long-lasting power for your key fob. Replace the old battery with the new one, matching the positive and negative sides correctly.

Removing The Mechanical Key

Removing the mechanical key is the first step in changing your Jeep Cherokee key fob battery. This key is hidden inside the fob and helps unlock the door manually. It is easy to remove but needs care to avoid damage.

The mechanical key allows access to your vehicle if the fob battery dies. Knowing how to remove it helps you open the key fob safely for battery replacement.

Locate The Release Button

Find the small button or switch on the side of the key fob. This button releases the mechanical key inside. Press it firmly to unlock the key.

Pull Out The Mechanical Key

After pressing the release button, gently pull the mechanical key out. Hold the fob with one hand and pull the key with the other. The key should slide out smoothly.

Use The Mechanical Key To Open The Door

Use the mechanical key to unlock your Jeep door manually. This is useful if the key fob battery is dead. It ensures you can still access your vehicle anytime.

Opening The Key Fob

Opening the key fob is the first step to replacing the battery in your Jeep Cherokee key fob. The process requires care to avoid damaging the fob. Understanding how to open the fob correctly will make the battery replacement easier and faster. Follow these simple steps to open the key fob safely.

Locating The Release Button

Start by finding the small release button on the side of the key fob. This button releases the internal mechanical key. Press the button firmly to slide out the key. Removing the key exposes the seam where the fob opens. This step is essential for accessing the battery compartment.

Prying The Fob Apart

Use the mechanical key or a flathead screwdriver to gently pry open the fob. Insert it into the seam near where the key was removed. Apply light pressure to separate the two halves of the fob. Avoid using too much force to prevent breaking the plastic. Once open, you can access the battery inside for replacement.

Replacing The Battery

Replacing the battery in your Jeep Cherokee key fob is simple and quick. A fresh battery ensures your key fob works smoothly. It helps avoid lock or start problems caused by low power. Follow these steps carefully to replace the battery safely.

Removing Old Battery

Start by locating the release button on your key fob. Press it to pull out the mechanical key. Use the key or a small flathead screwdriver to open the fob gently. Pry along the seam near the key slot. Separate the two halves carefully to avoid damage. Inside, you will see the old battery. Remove it by lifting it out with your fingers or a small tool.

Inserting New Battery

Take the new battery and check its type, usually CR2032. Place the new battery in the slot, matching the positive side up. Press it firmly into place to ensure good contact. Align the two halves of the fob and snap them back together. Insert the mechanical key back into the fob until it clicks. Test your key fob to confirm it works perfectly.

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Reassembling The Key Fob

Reassembling the key fob is the final step after replacing the battery. It ensures the fob works properly and fits securely. Careful reassembly helps protect the battery and electronic components inside. Follow these simple steps to put your Jeep Cherokee key fob back together correctly.

Snapping Fob Halves Together

Align the two halves of the key fob carefully. Press them firmly until you hear a click. This sound means the fob halves have snapped together. Avoid forcing the pieces, as this can damage the plastic. Check all edges to make sure they are flush and tight.

Reinserting Mechanical Key

Slide the mechanical key back into its slot on the fob. Push it gently until it locks into place. The key should fit snugly without wobbling. Test the key by pulling it lightly to confirm it is secure. Proper reinsertion keeps the key ready for emergencies.

Resyncing The Key Fob

After replacing the battery in your Jeep Cherokee key fob, resyncing is essential. This process reconnects the fob to your vehicle’s system. Without resyncing, the key fob may not work properly. It can prevent unlocking doors or starting the engine. Luckily, resyncing is simple and quick. Follow the steps carefully to restore full key fob function.

Post-battery Change Steps

First, close all doors and sit inside the Jeep. Insert the key into the ignition but do not start the engine. Press and hold the lock button on the key fob for about 10 seconds. Release the button and remove the key from the ignition. Test the key fob by locking and unlocking the doors. This confirms the fob is synced with your Jeep’s system.

Troubleshooting Sync Issues

If the key fob does not respond, try these tips. Replace the battery again to check for proper installation. Ensure you are inside the vehicle during the resync process. Repeat the syncing steps slowly and carefully. If problems continue, consult your Jeep owner’s manual. Contact a professional locksmith or Jeep dealer for further help.

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Starting Jeep With Dead Key Fob

Starting your Jeep Cherokee with a dead key fob can seem tricky. The key fob battery might fail at any time. This leaves you unable to unlock or start your vehicle using the usual remote functions. There are simple ways to start your Jeep even when the key fob battery is dead. Knowing these methods helps avoid frustration and delays.

Using Mechanical Key

Most Jeep Cherokee key fobs include a hidden mechanical key. Press a small button or slide a latch on the fob to release this key. Use the mechanical key to unlock the driver’s door manually. After unlocking, place the key fob close to the start button. Press the brake pedal and push the start button. The car will recognize the fob’s signal and start the engine. This method works because the key fob still sends a low-frequency signal even with a dead battery.

Keyless Start Alternatives

Some Jeep Cherokee models allow starting the engine without the key fob battery. Place the key fob against the start button or a specific spot on the steering column. This spot varies by model, so check your owner’s manual. Hold the brake pedal down and push the start button. The vehicle detects the fob’s signal through this close contact. This alternative helps start the Jeep when the battery is dead. It works as a backup system for keyless start vehicles.

Where To Buy Replacement Batteries

Replacing the battery in your Jeep Cherokee key fob is simple, but finding the right battery is important. Several places sell replacement batteries that fit your key fob perfectly. Choosing the right store can save time and ensure you get a quality battery. Below are common places to buy these batteries.

Local Automotive Stores

Many local automotive stores stock key fob batteries. These stores often carry popular types like CR2032 and CR2450. You can visit and get the battery on the spot. Staff can help identify the right battery for your Jeep Cherokee key fob. Buying locally allows you to check the battery before purchase. It also offers the chance to ask questions about installation.

Online Retailers

Online retailers provide a wide range of replacement batteries. Websites like Amazon and eBay list batteries compatible with Jeep Cherokee key fobs. Shopping online offers convenience and often better prices. You can read customer reviews to ensure the battery’s quality. Delivery to your door saves a trip to the store. Make sure to verify the battery model before ordering.

Frequently Asked Questions

What Kind Of Battery Does A Jeep Cherokee Key Fob Take?

A Jeep Cherokee key fob typically uses a CR2032 battery. Some models may require a CR2450 battery. Check your fob for exact type. Replace the battery by prying open the fob and swapping the old one with the new battery, ensuring correct orientation.

Can You Start A Jeep Cherokee With A Dead Key Fob?

Yes, you can start a Jeep Cherokee with a dead key fob using the mechanical key inside the fob. Remove the emergency key and insert it into the door lock to unlock and start the vehicle manually. Replace the fob battery soon to restore remote functions.

How To Change The Battery In A 2017 Jeep Cherokee Key Fob?

Press the release button and remove the mechanical key. Pry open the fob using a flathead screwdriver. Replace the old battery (CR2032) with a new one, matching the orientation. Snap the fob halves together and reinsert the key. Your 2017 Jeep Cherokee key fob battery is now changed.

What Happens When A Jeep Key Fob Battery Dies?

When a Jeep key fob battery dies, the remote functions stop working. You must replace the battery to restore keyless entry and start features. Use the mechanical key inside the fob to unlock and start the Jeep manually until the battery is replaced.

Conclusion

Replacing the Jeep Cherokee key fob battery is quick and simple. Use the right battery type, usually CR2032 or CR2450. Press the release button to open the fob carefully. Swap the old battery with a new one, then close the fob tightly.

Regular battery checks keep your key fob working well. This small task saves time and avoids lockout issues. Keep your Jeep ready for every drive with a fresh key fob battery.