We all have it. Some just aren't listening for it. GM is aware of it. It goes away when you disable DFM which is a PITA that I don't bother with anymore. Very pronounced on cold starts and backing out of the driveway, immediately goes away when back into D and accelerating or in L9 since...
If its what I think you're talking about all the 6.2s do it. You'll hear it around 50mph passing cars as well under light acceleration. Almost like you're using low lead. Definitely not the clean sounding you'd expect of an advanced V8. Love my truck but for 80k I expected better in many areas.
GM won't help you. Might throw a loyalty certificate worth a few thousand for your next new car that expires in a year.
You need to tell them what you want. Your dealer should be taking the lead. The whole truck needs to be repainted which will then hurt your value. If the truck is brand...
Anyone know of a way to remove the timer or keep the cameras on the screen longer? Bed view is nice, but 8 seconds is hardly enough. Getting rid of the speed limiter would be nice also.