I was wondering how to shutoff the stabilitrak option in my 04 sierra, everyones says its on the shifter leaver but my trucks and automatic and there is no button to shut it off anywhere else, i know it has it beacuse when the truck slips hard the dashlight comes on, anyone know how to shut it off by pulling a fuse or something else because its hurting my speed when me and my friends race on the strip, thanks