Welcome to the forum. I have been in touch with FCA about this & haven't had a response back (they may not know the reason either)? Have you experienced a blinking odometer display at all?
If you read the previous posts about this here & on Google, you will not see a definitive solution. It affects the electrically similar Dart & Cherokee?
If you use the 'Search Community' at the top of the page, you will see other threads about this.
I'm sorry that you bought a starter & battery that you probably didn't need.
If anyone can help, it would be a Chrysler dealer. There may not have been some inside-knowledge that I haven't been privy to?
If you do get a fix or an answer for this, please share it here.
The best I can figure out, is that it is something to do with the BCM PROXI configuration. Almost like the car forgets its core identity. The BCM (body control module) is the 'gate-keeper' for the other modules.
I don't know how it gets its identity back (or even if this is the problem). This is an 'intermittent' problem. Does the car always start for you later? Like nothing ever happened? I don't know how often this happens, but any problem that can strand you is a big problem.
If you do decide to have a dealer look at it, agree to the 'diagnostic' (usually the shop minimum) charge. They should not go beyond that without your authorization. There is a member here
@ChryslerCares, that can help guide the car through the service department visit.
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