The vehicle has 102k miles, regular maintenance done, oil, filter, transmission fluid, tire rotation done

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Thanks.

You can find diagnostic information for codes at the link below:

https://lemon-manuals.la/GMC/2019/

(You did not provide sufficient detail to link directly to your specific model and engine.)

I provided the error codes and the symptoms, I hoping someone here had the same or similar problems so I can guide myself on that

Hopefully Mr Scotty K will read my comment. He'll know exactly what's the problem.