I am quickly falling out of the exciter wheel causing it club. 12k miles. Seems that would have shown up way earlier. Sure seems like a software something makes more sense. May be proven wrong but if GM hasn’t got one of these trucks hooked to computer 24/7 and being driven daily we may never know the issue. Kinda wishing I would have bought that 2018 land cruiser with 80k on it for the same $$$$.