i would like to add to this issue. replaced both my front hubs (they needed to be replaced) and cleaned the contacts for the j-plugs thinking that some dirt had gotten in there. still happens. was recently told that i may need to replace the harness running from the hubs to the controller for the traction control? i have just gotten to the point that if i want to race some punk kid and i need that extra little hard shift, i will just live with it. i really don't want to shotgun this fix. (for those of you who are unaware of what a shotgun fix is... just throw a whole bunch of parts at it and hope something fixes it). something that a dealership won't do under warranty.
what really tweaks me about all of this, is the fact that this is a known issue with chevrolet vehicles and nothing has happened to repair.
if anyone wants to contact me directly.... firstname.lastname@example.org