at4
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Check your battery terminal, my ground side was super loose on a brand new 23 at4 when I checked it.....I had my 2023 AT4 for less than 12 hrs and battery dead. I drove it home from dealership yesterday afternoon and this morning when I went to start I had multiple error codes and lights and it would not start. I checked the battery with my battery charger and it was only showing 25 percent full. Has anyone had battery drain issue or bad battery from new?
I am not sure that the OTA software updates happen without your permission but a couple of weeks with no driving may drain the battery enough so that it doesn't start.So this seems to be happening a lot. Once the you take delivery the system seems to be doing a large software update and simply drains the battery down. Then acts super funky with all kinds of codes but once battery is fully charged they seem to be fine. Super inconvenient though. I have a 2023 Tahoe Z71 and a 2023 Denali. Both did the exact same thing within a week of purchase. My above explanation is what the dealer explained to me, apparently very common. My tahoe was first, I took it to the dealer, when the denali happened I just hooked it to the battery tender for a few days and all was well. We don't drive the denali much so it wasn't too bad.
My concern is travel, the last thing I want to do is come back to it in an airport parking lot after being gone for a week and the battery be dead due to a software update.