appreciate the post. I ended up sending a letter to GM corporate about the issue. Believe it or not, GM customer service contacted me and worked with my service department on the issue. Although the service department couldn't replicate the issue when they had it, they, along with GM Corporate, are aware and if it comes up again, agreed to work together to try and fix it. Pleasantly surprised that GM corporate agreed to intervene on my behalf. My issue has not come back up so i have my fingers crossed. Something to note, the starting issue happened during my first week of ownership after taking receipt of the truck from the dealership. The dealership filled it with gas prior to me driving it home. I am guessing they filled it with the cheap 87 octane. However, once i filled the truck back up with 93 octane, the starting issue went away. Coincidence? I don't know but since that first week of problems (late April), i haven't had the starting issue resurface while running with 93 octane.