WHYUMAD
Full Access Member
The bottom line is that there is a risk. Probably small if the TSB applies to your truck, but a risk nonetheless. It wouldn't be enough of a risk to stop me from tuning, but that a personal decision only you can make based on your risk tolerance.
I agree on that. There’s also the option of bringing it to another dealer then, if denied... but once denied, aren’t you “blacklisted” by all dealers in their database or someone made that up?