Experiencing the frustration of a “key fob not detected” message in your 2015 Chrysler 200 can be more than just inconvenient. It can disrupt your day and leave you wondering about the cause and solution. This guide will help you understand why your Chrysler 200 key fob might not be detected and what steps you can take to resolve the issue.
Understanding Rolling Codes and Synchronization Issues
Modern key fobs, like the one for your 2015 Chrysler 200, utilize a “rolling code” system for enhanced security. This system, similar to garage door openers, changes the transmitted code each time a button is pressed. This prevents unauthorized access by those attempting to intercept and mimic the signal.
However, this sophisticated system can sometimes lead to a loss of synchronization between your key fob transmitter and your vehicle’s receiver. This desynchronization can occur if the key fob button is pressed excessively (over 255 times) while out of range of the vehicle, or even after replacing the key fob battery. When this happens, your Chrysler 200 may no longer recognize the signal from your key fob, resulting in the dreaded “key fob not detected” message.
Resynchronizing Your 2015 Chrysler 200 Key Fob
Fortunately, resynchronizing your 2015 Chrysler 200 key fob is often a straightforward process you can attempt yourself. Here are two methods you can try:
Method 1: Lock and Unlock Button Resync
- Press and hold both the Lock and Unlock buttons on your key fob simultaneously.
- Continue holding both buttons until you hear the vehicle’s door locks cycle (you should hear a distinct clicking sound from the doors locking and then unlocking).
- Test your key fob to see if it is now detected.
Method 2: Unlock Button Resync
- Press and release the Unlock button on your key fob repeatedly, up to eight times.
- Listen carefully for the power door locks to cycle, indicating that resynchronization has occurred. This may take several presses, so be patient.
- Once the locks cycle, test your key fob functionalities.
When to Consider Professional Assistance
If you have attempted both resynchronization methods and your 2015 Chrysler 200 key fob is still not being detected, it may be time to seek professional help.
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Dealership or Locksmith: Chrysler dealerships and qualified locksmith services possess the necessary tools and expertise to diagnose key fob issues and reprogram or replace your key fob if needed. They have access to the specific 4-digit security code required for programming.
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Spare Key Fob: If you only have one key fob, it’s highly recommended to obtain a spare. Having a backup key fob can prevent you from being stranded in situations where your primary key fob malfunctions or is lost.
By understanding the rolling code system and attempting the resynchronization methods, you can often resolve the “key fob not detected” issue with your 2015 Chrysler 200. However, don’t hesitate to seek professional help if the problem persists, ensuring you regain full functionality of your keyless entry system.
