BIG6MOHAWK

I am having same issue with 2018 not a problem with my 2014. Took it to dealer first oil change and had them look at it they pretty much did the same song and dance blaming tranny program. It's a 6 speed 5.3 4 wheel drive almost the same setup as my 2014. I agree Bash74 you probably will need to hook it up to scan and drive it. It won't flash a code because its to short of time.

Single exhaust