2021 GMC Sierra 2500HD 6.6 duramax

[Calvin Gray]

I just finished around a 2500 mile drive and out of no where my truck starts shuddering. Only does it when I give it a little gas. If I floor it, it's fine. I have service break system and traction control lights on. I was wondering if anyone else has had the same problem? The dealer can't get to it where I am until middle of next month. I was wanting to try to make it home... 

Edited May 17, 2023 by Calvin Gray

[Brianibew]

Sounds like a torque converter issue due to the shudder at a low throttle input.  You may want to stop by an auto parts store to read the other codes that have generated.  Always an option to call GM and ask what how they want to handle the situation, as in keep

driving or tow it.