This is probably a real dumb question, but how the heck do you convince the C6 with an automatic transmission that you REALLY REALLY want it to be in neutral while the engine is off? I wanted to have the rear wheels free to spin while on the lift, so I started the car, put the car in neutral, and then shut off the engine, while the wheels were still off of the ground. Darn thing was yelping at me the entire time, and then when I closed the door to shut it up, it kept all the exterior lights on to try to get my attention about my "mistake".
So how do I do that? Man, I HATE cars that act like I don't know what I am doing.....