Reply To: GM Service Update : N222383250 – Transmission shift issue 2022 Refresh

I am experiencing the same shifting problems and hesitation on my 2021 GMC Sierra AT4 6.2L. It hesitates very bad when accelerating from a dead stop. I have taken it to the dealership multiple times and they tell me that it is fine because it isn’t presenting any codes. This has only started in the last couple of months and it is quite frustrating. They have told me that there is nothing they can help with or do until the check engine light comes on and points them where to look.