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How To Replace Battery In Key Fob Jeep Guide
What is the Jeep key fob battery replacement process? The Jeep key fob battery replacement process is a straightforward DIY task that involves opening your key fob, removing the old battery, and inserting a new one.
If your Jeep key fob isn’t unlocking doors or starting your vehicle, it’s likely time for a Jeep key fob battery replacement. This common issue can leave you stranded, but thankfully, it’s usually a simple fix that most Jeep owners can handle themselves. This comprehensive guide will walk you through the entire process of a Jeep remote battery change, from identifying the correct battery to properly reassembling your fob. We’ll cover everything you need to know for a successful Jeep keyless entry battery update.
Why Your Jeep Key Fob Battery Needs Replacing
Your Jeep key fob is a sophisticated piece of technology that relies on a small battery to power its various functions. Over time, this battery will naturally lose its charge. Several factors can contribute to a depleted battery, including:
- Age: Like all batteries, the one in your key fob has a limited lifespan. Even if you don’t use the fob frequently, the internal components still draw a small amount of power.
- Frequent Use: The more you use your key fob to lock, unlock, start, or remotely start your Jeep, the faster the battery will drain.
- Environmental Factors: Extreme temperatures, both hot and cold, can impact battery performance and longevity.
- Accidental Button Presses: If a button on your key fob gets stuck or is accidentally pressed repeatedly in your pocket or bag, it can drain the battery much faster.
- Low Voltage: A weak battery might still allow some functions, like unlocking the doors, but may struggle with others, like starting the engine.
Identifying the Correct Jeep Key Fob Battery Type
One of the most crucial steps in a Jeep key fob battery replacement is ensuring you have the correct battery. Using the wrong type can damage your fob or simply not work. Fortunately, most Jeep key fobs utilize a common coin-cell battery.
Common Jeep Key Fob Battery Types
While models can vary, the most frequently found Jeep key fob battery type is the CR2032. This is a 3-volt lithium coin cell battery that is widely available at most retail stores, electronics shops, and online.
However, it’s always best to confirm the exact type for your specific Jeep model and year. You can typically find this information in your Jeep’s owner’s manual. If you don’t have your manual handy, you can usually:
- Check the old battery: Once you have the fob open, the battery type is usually printed on its casing.
- Search online: A quick search for “Jeep [your Jeep model and year] key fob battery” will often yield the correct information.
Jeep Key Fob Battery Size and Voltage
The Jeep key fob battery size for the CR2032 is standard – approximately 20mm in diameter and 3.2mm thick. The Jeep key fob battery voltage for this type is 3 volts. Always ensure the replacement battery matches these specifications.
Tools You’ll Need for a Jeep Remote Battery Change
Fortunately, you won’t need a toolbox full of specialized equipment for a Jeep remote battery change. Here are the common tools you’ll likely need:
- New Battery: The correct Jeep key fob battery type (usually CR2032).
- Flathead Screwdriver or Pry Tool: A small, flathead screwdriver or a plastic pry tool is ideal for carefully separating the Jeep key fob battery cover. A thin, flat object like a guitar pick can also work. Avoid using sharp metal objects that could scratch or damage the fob.
- Clean Cloth: To wipe down the internal components and the new battery, ensuring good contact.
Step-by-Step Jeep Key Fob Battery Tutorial
This Jeep key fob battery tutorial will guide you through the process. Remember to work gently and patiently to avoid damaging your key fob.
Step 1: Locate and Remove the Emergency Key
Many Jeep key fobs have a small, concealed emergency key inside. This key can be used to manually unlock your doors if the fob battery dies completely or the fob malfunctions.
- Find the release mechanism: Look for a small button or slider on the side or back of your key fob.
- Press and slide: Press this button or slide the mechanism to release the emergency key.
- Pull out the key: Gently pull the metal emergency key out of the fob.
Step 2: Opening the Jeep Key Fob Battery Cover
Once the emergency key is removed, you’ll usually find a seam or a small slot on the key fob where it can be opened to access the battery. This is where your small screwdriver or pry tool comes in handy.
- Identify the seam: Examine the edges of your key fob. You’ll typically see a thin line where the two halves of the fob case meet.
- Insert the pry tool: Carefully insert the tip of your flathead screwdriver or plastic pry tool into this seam or the slot where the emergency key was removed.
- Gently twist or pry: Apply gentle pressure to twist the screwdriver or pry the case apart. You might hear a small click as the clips release. Work your way around the seam if necessary, but avoid forcing it. The goal is to separate the two halves of the Jeep key fob battery cover.
Step 3: Jeep Key Fob Battery Removal
With the key fob housing opened, you’ll now see the old battery.
- Locate the battery: The battery is typically a small, round coin cell.
- Use the pry tool: Carefully insert the tip of your screwdriver or pry tool under the edge of the old battery.
- Gently lift: Pry the old battery straight up and out of its compartment. Be careful not to scratch the contacts or any other internal components.
Step 4: Inserting the New Jeep Key Fob Battery
Now it’s time to install the new Jeep transmitter battery.
- Handle the new battery: It’s a good idea to handle the new battery by its edges. Fingerprints can leave oils on the battery surface, which could affect conductivity. You can use the clean cloth for this.
- Observe polarity: Look at the old battery (or the compartment itself) to determine the correct orientation of the new battery. Coin cell batteries have a positive (+) and negative (-) side. Typically, the side with the printing (which is usually the positive side) faces upwards.
- Place the battery: Carefully place the new battery into the compartment, ensuring it sits flush.
- Press gently: Press down gently on the battery to secure it. You should feel or hear a slight click if it’s seated correctly.
Step 5: Reassembling the Jeep Key Fob
Now, reverse the process to put your key fob back together.
- Align the halves: Carefully align the two halves of the key fob casing.
- Press together: Gently press the two halves together. You should hear clicks as the internal clips snap back into place. Work your way around the edges to ensure a secure fit.
- Reinsert the emergency key: Slide the metal emergency key back into its slot until it locks securely.
Step 6: Testing Your Key Fob
After reassembling, it’s crucial to test if the new battery has resolved the issue.
- Test lock and unlock: Stand near your Jeep and press the lock and unlock buttons on the key fob.
- Test other functions: If your fob has other buttons (e.g., panic alarm, remote start), test those as well.
- Start the vehicle: Try starting your Jeep with the newly equipped key fob.
If your key fob functions correctly, congratulations! You’ve successfully completed the Jeep key fob battery replacement.
What to Do If Your Jeep Key Fob Still Doesn’t Work
If you’ve replaced the battery and your Jeep key fob still isn’t working, don’t despair. Here are a few troubleshooting steps:
- Double-check the battery: Ensure you used the correct Jeep key fob battery size and that the Jeep key fob battery voltage is appropriate. Make sure the battery is installed with the correct polarity.
- Try another new battery: Sometimes, even new batteries can be faulty. Try a different brand-new battery to rule this out.
- Clean the contacts: With the fob open, gently clean the metal battery contacts inside the fob with a pencil eraser or a soft cloth. Ensure there’s no debris or corrosion.
- Check for damage: Inspect the key fob itself for any physical damage, such as cracks or loose buttons.
- Reprogramming: In some cases, after a battery change, a Jeep key fob might need to be reprogrammed to communicate with your vehicle. This process varies significantly by Jeep model and year. Consult your owner’s manual or a Jeep dealership/automotive locksmith for specific reprogramming instructions.
- Fob Malfunction: If all else fails, the key fob itself might be malfunctioning due to internal damage or age. In this scenario, you may need to purchase a new key fob and have it programmed.
Frequently Asked Questions About Jeep Key Fob Battery Replacement
Here are some common questions about Jeep key fob battery replacement:
Q1: How often should I replace my Jeep key fob battery?
A1: The lifespan of a Jeep key fob battery can vary greatly depending on usage and battery quality. Typically, you can expect a battery to last anywhere from 1 to 5 years. If you notice sluggish performance or unresponsiveness, it’s a good indicator for a Jeep remote battery change.
Q2: Can I use a rechargeable battery in my Jeep key fob?
A2: It’s generally not recommended to use rechargeable batteries in most key fobs, including Jeep key fobs. They often operate at a different voltage than standard coin cells, which can lead to improper functioning or damage to the fob’s electronics. Stick to the specified non-rechargeable coin cell type.
Q3: My Jeep key fob battery died, can I still start my car?
A3: Yes, in most cases, you can still start your Jeep. Modern vehicles often have a backup method for starting the car with a dead key fob. This usually involves placing the key fob directly against the start button or in a specific slot within the vehicle. Refer to your Jeep’s owner’s manual for the exact procedure for your model.
Q4: Where can I buy a replacement Jeep key fob battery?
A4: You can purchase replacement Jeep key fob batteries at most convenience stores, drugstores, supermarkets, electronics stores (like Best Buy), and online retailers (like Amazon). Ensure you are purchasing the correct Jeep key fob battery type and Jeep key fob battery size.
Q5: Is it difficult to replace the Jeep key fob battery?
A5: No, replacing the Jeep key fob battery is generally a simple and quick DIY task. With the right tools and this Jeep key fob battery tutorial, most owners can complete it in under 10 minutes.
Q6: My Jeep key fob is not working after replacing the battery. What should I do?
A6: If your key fob is still unresponsive after a battery change, double-check that the new battery is correctly installed with the right polarity, ensure you used the correct Jeep key fob battery type, and clean the battery contacts. If issues persist, your key fob may require reprogramming or might be damaged.
Q7: What is the typical Jeep key fob battery voltage?
A7: The typical Jeep key fob battery voltage for most common key fobs, like those using the CR2032 battery, is 3 volts.
Q8: How do I know which Jeep key fob battery size I need?
A8: The most common Jeep key fob battery size is CR2032, which is a 20mm diameter coin cell. However, always verify the specific battery type and size in your Jeep’s owner’s manual or by checking the old battery once the fob is open.
Conclusion
Replacing your Jeep key fob battery is a minor maintenance task that can save you time and hassle. By following this detailed guide, you’ll be equipped to handle the Jeep key fob battery replacement with confidence. Remember to work carefully, use the correct Jeep key fob battery type, and test your fob thoroughly after the replacement. With a fresh battery, your Jeep’s keyless entry and remote functions will be back to full power in no time!