Yes gm customer service it would be great if you could help me. I've had my truck at the dealer 12 times 3 dealers 1st dealer flat out said they didnt have time. My opinion someone there should be with no job. 2nd dealer flushed transmission 3rd and best dealer yet I'm not sold on competent dealer has done everything from reprogramming it to last time torque converter. So after 12 trips I get my truck back yesterday now transmission temperature is at 230 degrees f and will not shift into 6th out of 5th and down shifts and never shifts back up. I have a bunch of videos of this whole adventure. I'm just before getting a lawyer all I want is what I paid 50 grand for a new truck to run and not be at dealer twice a week I've lost money from work and time .