Are you experiencing problems with your key fob for your Jeep Cherokee? It’s a common frustration, and surprisingly, interference from other FCA vehicle fobs could be a contributing factor. This radio frequency interference (RFI) can sometimes cause issues that require a module reset. While using a professional WiTech diagnostic tool is the most reliable solution, there are a couple of methods you can try yourself.
One simpler approach involves resetting the vehicle’s system. After shutting off the engine, open and then close the driver’s side door. Then, wait for about 20 minutes. This procedure has been known to resolve issues, particularly when the vehicle enters limp home mode. This allows the system to potentially clear temporary glitches.
For a more thorough reset, you can disconnect the negative battery cable. Carefully detach it and hold it against the positive battery terminal for approximately one minute before reconnecting it to the negative terminal. This action is intended to discharge any residual memory from the vehicle’s computers, forcing them to restart fresh. While the exact steps may vary slightly, this method aims for a clean system reboot.
It’s always wise to assess your car battery’s health, especially in Jeep Cherokees equipped with ESS (Engine Stop-Start) systems, as they are particularly sensitive to battery condition. These vehicles typically use AGM batteries, which require optimal charge levels to function correctly.
When visiting your Jeep dealership, request a VIP report. This report can reveal if there are any Technical Service Bulletins (TSBs) or recalls related to your specific issue. A service advisor can also scan your vehicle for diagnostic codes, although this service may incur a fee.
Utilize online resources, such as the “Search Community” function in Jeep forums, to find discussions related to your key fob problems. Internet searches can also be helpful in uncovering solutions shared by other owners.
One user suggestion involves a quick fix: temporarily remove fuse F56 in the Power Distribution Center (PDC) to reset the Ignition Node Module. While the exact effect is not fully documented, it’s reported to be a harmless and easy step to try.
By exploring these troubleshooting steps, you can address common key fob problems in your Jeep Cherokee and potentially avoid unnecessary dealership visits.
