NHTSA Complaint #11499394 — 2021 CHRYSLER PACIFICA

My 2021 Pacifica Hybrid with 19.2K miles threw a "Service Charging System" and Check Engine Light error while I was driving at 65mph on the highway on Christmas Eve in 8 degree weather. The minivan stopped accelerating and the transmission began flashing between P and D. We were forced to stop the vehicle on the highway shoulder, leaving us (2 parents, 2 kids 7 & 11) stranded on the highway. The vehicle then shut off and we were unable to turn on heating or accessories other than headlights and hazards. We were rescued by state troopers given that no tow trucks were available on Christmas Eve. The local dealer claims that the issue was related to the battery, but that doesn't make sense given the car was driving at highway speeds at the time and the alternator should keep the battery charged. I have seen a lot of owners with Service Charging System errors on this forum and believe Chrysler should have some knowledge as to a permanent solution. Without better understanding the root cause of the issue, it's hard for us to feel safe with a battery replacement, since that seems to be address symptom given that a car running highway speeds would keep the batteries charged through the belt and alternator system. My wife is fairly terrified of driving this car at highway speeds without some assurances it won't shut down and I get the sense that the dealer wants to wash its hands of this situation. I have a Chrysler warranty number for this repair, but have not received assistance yet. Would really appreciate some help!