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2020 C8 With 2 major problems. First Failed coolant system at 500m. 4 weeks in the shop, apparently this was a production problem. Running well until last week now at 4800m and now total electrical failure. 2V at the terminal. Has anyone seen this problem? C8 problem or GM problem?
My first thought is a failed OTA software update, that failed repeatedly until your battery was dead.
On the other hand it could be like my neighbor with a new Pickup that the truck was delivered to him at his house and then he left for a week, came back and it was dead, dead, dead. Apparently he had left the flashers on before he left. I know because we helped him unlock his truck (he didn't know how to use the key in the fob. I lent him a charger because he didn't have one, etc........ also didn't have jumper cables.