Undiagnosable/unrepeatable transmission issue

[X-cessive Wizard]

I had the same problem after a long trip. I took it to the dealer and after 10 days of putting a band aide on the problem, they finally put a brand new transmission in ny truck. Now im reluctant to go on another long trip. Stay on those guys at the dealership they have to help you. Another person to call is a GM representative. I simply touched the onstar buttonand they connected me to a guy who washelping through this whole ordeal and they called the dealership to ensure everything was going o.k. Overall I was satisfied. oh,yeah if the dealership places a new transmission in your truck it is covererd one year under a warranty.