Originally Posted by ChrisSlicks

On the GM system the traction light doesn't illuminate at the first level of intervention. A bit weird but that's the way they designed it. Given that it is less aggressive at that first level of correction it is also barely detectable. On the other side of the coin the Z's traction control system was designed by Nazi's, "Nein! Sie spinnen nicht! No power for you!". A tiny chirp and you have to wait a painful 3 seconds while the flashing light tells you off and you sit there looking like a fool.