CrimeFactory

Yup same here! Told me that GMC is aware of the problem and they have engineers working on it. Ive had mine come on twice already and they said if it comes on again they will need gmc to send out an engineer to investigate because it will be an Active Case

Nice! how's the exhaust sound? I might hear you beast around YYC.

Bought a 2020 GMC 1500 Denali, had issue with the Auto/stop about 5 days after driving it home. Pulled up to a stale red light and I took my foot off the brake the engine was mid auto stop and it went into what felt like convulsions for about 15 seconds in the intersection, almost stalled out but slowly pulled it together and continued driving. ( no check engine light ). I now try to remember to turn off the auto stop every time I get into the truck, which is somewhat annoying to begin with. Truck has a weird idle at stop, not sure if that's typical of the 6.2 I've only had 5.3s previously. now 4000km I make an appointment for oil change and to have them investigate the auto stop incident, started the truck this morning and check engine light is on.. Changed my appointment to tmw and will have to see what happens. I could tell in the first week of driving this truck it will be prone to auto stop and battery problems, I do have extended warranty but will have to check if auto stop components are covered past 3 yr which I suspect they are not.