Originally Posted by SHO Rod

If you no longer have a warranty on the Durango and you don't want to pay their diagnostic fee, or deal with the hassle of taking it in, you may now be at the point of investing in a tool to read check the diagnostic codes across all the systems. Starting in 2018 accessing several of the systems required either a bypass cable or a scan tool and $50 annual subscription to AutoAuth to unlock the Secure Gateway (SGW). I recently read that Stellantis has a different system or at least calls it something different, but I'm not sure what year that transition took place. So if you're thinking about getting a scan tool, make sure to confirm it has the ability to work with your Durango.

I was very hopefully replacing the battery would take care of the issue. I wouldn't expect it to require any amount of time to correct the issue, even if you were unable to reset the Battery Management System (BMS) after replacing the battery. But that's another feature that a higher end scan tool can accomplish for you. There may also be a particular BMS reset sequence that you can perform without a scan tool too. Actually, you may be able to access some of the diagnostic information via hidden / Engineering menus now that I think about it. That may also be worth some research. They usually involve some sequence like cycle the Start/Stop button 3 times, press and release the brake pedal 5 times within 10 seconds, then lock and unlock the doors and look at the instrument cluster display for the codes. I totally made up that sequence, but it's usually something like that to enable different features. If you find yourself needing or wanting to do these things frequently though, in my mind it's worth getting a full-feature scan tool.

-Rod