On a road trip, car kept aborting charge at Glen Allen VA SC. Then I started getting the navy triangle and "do not drive" message, as well as systems check failure. Roadside pulled logs, said indeed don't drive it. So I ended up in a rental and the car ended up flatbedded back to Raleigh the nest morning. Diagnosis: failed battery coolant heater. Picking it up later this morning, hopefully no more issues.