Is your Chrysler key fob suddenly refusing to lock or unlock your doors after a battery change? You’re not alone. Many Chrysler owners experience frustration when their key fob stops working after a seemingly simple battery replacement. This guide, brought to you by the auto experts at keyfobx.com, will walk you through troubleshooting steps and explain how to get your Chrysler key fob working again. We’ll cover everything from common issues to reprogramming methods, ensuring you’re equipped to handle this common car key problem.
Common Issues After Chrysler Key Fob Battery Replacement
Replacing the battery in your Chrysler key fob should be a straightforward process, but sometimes things don’t go as planned. Here are some common problems that can arise:
- Key Fob Not Working at All: This is the most frustrating scenario where, after replacing the battery, your key fob becomes completely unresponsive. It won’t lock, unlock, or activate the panic button.
- Reduced Range: You might find that the key fob works, but only when you are very close to the vehicle, significantly reducing its effective range.
- Intermittent Issues: The key fob might work sporadically, sometimes locking or unlocking the doors, and other times failing to respond, leading to inconsistent performance.
These issues can stem from several factors, from simple installation errors to the need for reprogramming your key fob to your Chrysler vehicle. Let’s delve into how to address these problems effectively.
Step-by-Step Guide to Chrysler Key Fob Battery Replacement
Before assuming your Chrysler key fob needs reprogramming, it’s essential to double-check the battery replacement process itself. Here’s a detailed guide to ensure you’ve done everything correctly:
Tools You’ll Need
- Small flathead screwdriver or pry tool: For opening the key fob case.
- New batteries: Typically CR2016 3V lithium batteries (refer to your owner’s manual for the exact type).
Opening the Key Fob
- Locate the Notch: Examine your Chrysler key fob for a small notch or seam. This is usually where you need to pry it open.
- Carefully Pry Open: Insert the flathead screwdriver or pry tool into the notch and gently twist or pry to separate the two halves of the key fob case. Be careful not to apply excessive force, which could damage the casing.
Chrysler key fob showing seam for opening
Battery Replacement (CR2016)
- Remove Old Batteries: Once the case is open, you’ll see the old batteries. Note the orientation of the batteries (positive and negative sides). Typically, Chrysler key fobs use two CR2016 batteries stacked on top of each other.
- Insert New Batteries: Install the new CR2016 batteries, ensuring they are placed in the correct orientation, matching how the old batteries were positioned. Double-check the polarity (+ and -) markings inside the battery compartment.
Closing the Key Fob
- Align the Case Halves: Carefully align the two halves of the key fob case.
- Snap Case Shut: Press the two halves firmly together until they snap securely closed. Ensure there are no gaps and the case is properly sealed.
After replacing the battery, test your key fob. If it still doesn’t work, proceed to the next section on reprogramming.
Chrysler Key Fob Reprogramming: Re-syncing Your Remote
If your Chrysler key fob is still unresponsive after a battery replacement, it might need to be reprogrammed or re-synchronized with your vehicle. There are a couple of methods you can try:
Using EVIC (Electronic Vehicle Information Center)
Some Chrysler models equipped with an EVIC system allow for key fob programming directly through the vehicle’s menu. Here’s how you might attempt this (note: specific steps can vary by model and year, always consult your owner’s manual):
- Enter the Vehicle: Get inside your Chrysler and close all doors.
- Ignition to ON/RUN: Turn the ignition to the ON/RUN position, but do not start the engine.
- Navigate EVIC Menu: Use the steering wheel controls to navigate to the “Customer-Programmable Features” or “Vehicle Settings” menu in your EVIC display.
- Find “Program Remote”: Look for an option like “Program Remote,” “Train Remote,” or similar within the menu.
- Follow On-Screen Prompts: Select “YES” to program a remote. The EVIC will usually display instructions, often prompting you to “PRESS REMOTE LOCK & UNLOCK THEN PRESS UNLOCK.”
- Press Buttons on Key Fob: Simultaneously press and hold the Lock and Unlock buttons on your key fob for a few seconds, then press the Unlock button again as directed.
- Listen for Chime: The vehicle should chime to indicate successful programming.
- Test the Key Fob: Try locking and unlocking your doors using the key fob.
Alt Text: Chrysler 300M EVIC screen displaying vehicle settings menu, used for key fob programming.
Important Note: EVIC programming may have limitations. Some Chrysler models might require at least one working key fob to program additional remotes. If you only have one key fob and it’s not working, this method might not be successful.
Dealership Programming
If the EVIC method doesn’t work, or if your Chrysler model doesn’t have EVIC programming capabilities, you may need to visit a Chrysler dealership or a qualified automotive locksmith. Dealerships have specialized diagnostic tools and equipment to reprogram key fobs, especially in situations where all remotes have lost programming.
While dealership programming usually involves a cost, it’s often the most reliable solution, particularly if you’re facing persistent issues or have lost all working key fobs. Consider getting a spare key fob programmed at the same time to avoid future inconveniences.
Prevention Tips and Best Practices for Key Fob Batteries
To minimize issues with your Chrysler Key Fob Battery Replacements, consider these best practices:
- Quick Battery Change: Some users suggest that replacing the battery quickly, ideally within 15 seconds, might help retain the key fob’s memory and avoid reprogramming needs. While not always guaranteed, it’s a simple step to try.
- Check Battery Orientation: Always double-check the correct battery orientation when installing new batteries. Incorrect polarity can prevent the key fob from working.
- Consider a Second Fob: If you only have one key fob, consider getting a second one programmed. This provides a backup and can be helpful for programming additional remotes yourself in the future (if your vehicle supports it).
Conclusion: Getting Your Chrysler Key Fob Working Again
Replacing your Chrysler key fob battery shouldn’t be a headache. By following the steps outlined in this guide, you can troubleshoot common issues and attempt reprogramming methods. If you’re still facing problems after trying these solutions, don’t hesitate to seek professional help from a Chrysler dealership or a certified automotive locksmith. They have the expertise and tools to diagnose and resolve more complex key fob issues, ensuring you regain full access and control of your Chrysler vehicle. Visit keyfobx.com for more automotive tips and solutions to keep you on the road.
