I wanted to provide an update. I understand now that it is normal and the system resets within a day or so and I don't have to unplug the negative terminal or anything for it to reset itself.

Just received the i2 today for my 16 Silverado 5.3, updated it right away and then plugged into truck while key was set to on, did not start engine, applied 91 octane diablo tune with hard shift no tire adjustments and removed speed limiter following directions carefully. Immediately after applying ...