the tsb he posted says they have to replace the throttle position sensor cover. take that tsb number to them if they dont already know about it

I've yet to own a drive by wire car, and after reading this, I don't think I'd really want to.

i hate it, the engine feels entirely disconnected. the only benefit is for gm'* cost cutting and they try to make it out to be this big technological marvel.

Yeah I've changed a lot of the throttle position sensor covers on the new gen V8 engines, have never heard of a concern like yours though of the vehicle wanting to take off like that. There'* 2 throttle position sensors in the throttle body for safety purposes, if one doesn't agree with the other it will set a P2135 and put the vehicle into reduced engine power mode.

I just don't see what the advantage (if any) would be from a drive by wire throttle. Throttle cables are relatively inexpensive, durable, and simple. I think it'* more like having technology in a car for technologies sake, and is just one more thing to fail that is more complicated, and expensive to repair than it needs to be.