Do you happen to know the TSB#, I have had the same issue since new (2020 Elevation 3.0) and the GMC service department has not been able to fix the issue. I will like to know the TSB# so next time I take it in I can ask them to look for the TSB and hopefully fix my issue, thank you.
Are idle hours included in engine total hours?
I have total of 867.6 and Idle 123.2, does this make it 990.8 total engine hrs? or is the total 867.6 which include the idle hours?