I realize a lawsuit is not feasible. I’ve just been telling everyone and posting all over about the crappy service and products GMC has. I’m in the process of swapping to a Ford. No more GM products for us.
I’m having the same issue on my 2019 Sierra SLT, which I bought specifically with the 6.2L engine to tow our camper that we can’t tow safely now. GMC is no help at all. The dealership is no help at all. Maybe it’s time for a lawsuit.