Well, the shift change caught me by surprise, and it took a few moments to figure out why the engine was acting weird. I eventually figured it out. But in MY OPINION, this is terrible design, especially for Buick owners who would not normally go about shifting gears. I mean, it's an AUTOMATIC shift, idnit? And so the volume controls for the radio are hidden cleverly behind the steering wheel, where you have to feel around and press them to change the volume. Do you get my drift? Easy to accidentally change gears, hard to intentionally change volume. OK, my rant is over. This cannot be disabled. If it weren't for resale value, I'd saw these &^%^$ paddles right off.Manual shift mode cannot be permanently disabled. In the situation you outlined, why didn't you just hit the paddle shifter to upshift to the next gear?