Initial issue was low DEF (there is a backstory) and then the dealer could not get the car out of the speed limit mode. Dealer called TAC and somehow they managed to reset the car which fixed it. They managed to run through all the diagnostics and every sensor checks out good. So I am happy with that, only charged me $140 for materials and diagnosis which is not terrible IMO considering they were perplexed for a couple days with it. [This is all at a third party Chevy dealer]
The back story, about a week or so ago prior to this incident, the same symptoms showed up. Angrily called dealer I bought it from they told me to bring it in. Was then told their tech flushed and refilled the DEF, fine, all the codes were gone I was happy. I wrongly assumed that they actually did the ****ing work they claimed, but, lesson learned.
And yes, super embarrassing to have the tech explaining how I need to fill the DEF every oil change
