<p data-start="0" data-end="510">If your key fob suddenly stops working, it can be frustrating&mdash;especially for popular brands like Ford, Jeep, or Dodge that rely heavily on keyless entry systems. The first thing to check is the battery; a weak or dead battery is often the main culprit. If replacing it doesn&rsquo;t help, the issue might lie in the fob&rsquo;s internal circuitry, signal interference, or a syncing error with your vehicle. Modern vehicles require precise programming, and a misconfigured fob can stop working unexpectedly.



<p data-start="512" data-end="976" data-is-last-node="" data-is-only-node="">Other signs include inconsistent locking/unlocking, delayed response, or complete failure to start the engine. When these issues arise, it&rsquo;s best to avoid DIY fixes that may cause more damage. Instead, consult a professional automotive locksmith who can diagnose the problem, reprogram or replace the fob, and get you back on the road quickly. For Ford F-150s, Jeep Wranglers, or Dodge Chargers&mdash;timely help ensures your keyless entry stays reliable and secure.