Leave it with the brakes off and the shifter in neutral-since it's going to be up on blocks anyway, that's unnecessary and brake pads / drums tend to seize up and lock on-and the parking brake cable will stretch because it's under tension.
22.
Most of the time, the computer knows that your car is rolling down the road just fine with the brakes off-but one of the wheel speed sensors is saying that that wheel is not moving ( or moving impossibly fast or something ).
