PUMPDOC is right. It actuates your brakes to equalize the spin of the wheels. If I were you I would turn it off though. With a S/C, unless you are really good at keeping wheel spin to a minimum, the TC is going to slow you down quite a bit. I have gotten to the point where I can launch with the TC on and it wont activate, buy im not S/C.
-06 GT Black on Black -Saleen S/C -4.10 gears -Triax Shifter -JBA LTH, H Pipe, and Axlebacks -Tokico D-Specs -Eibach Pro Springs -Steeda Chrome Molly Steel LCA
-8.34 1/8 @88 MPH (street tires