After, chasing the wire down that had a short, pulling the fuse box and cleaning the contacts, it seems to have been my simi-new battery that was dang near dead. It was less than a year old. Got a new one under warranty and not a lick of trouble in over a week, which is a great report.
I'm not really sure about all you just said, it was a naked ground wire that went from the negative terminal. It had wrapped itself around other wires. They traced it out and unwrapped it. Still no more problems. That wire went to the block.
Update, my husband found the battery on the negative side was super hot after about 5 seconds of the truck being started. He traced the wires and found one that was shorting out. He fixed that and so far so good. Hopefully, it didn't cause more damage and that was the problem.
My son just pulled the fuse box from under the hood and reset it. This fuse box comes completely out. Tahoe was dead, it started right up after he reset it. There could be a bad pin or corrosion there. Hopefully we found my issue.
If you're talking to me, new battery and cables. That's not the problem. It's electrical for sure. I cut the Tahoe off today and both doors started clicked, the Hvav clicks randomly, too.
My 2013 Tahoe LTZ is doing the same. More frequently the last few days. Before Christmas we changed the battery fusr and it seemed to solve all the issues. That was a $6 fix. Now it's doing it again. System reboots while driving, sometimes it cuts completely out, engine and all the starts...
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