First it probably should only be used at the track as it won't work all that great if there is a bunch of loose gravel or lousy road surface. That said hit the ESC off button twice to put the vehicle into launch control. The display should then read Launch Control enabled. Then hold the brake and make sure the vehicle is in drive. While holding the brake rapidly apply the accelerator pedal to wide open throttle. The engine speed will hold at approx. 1,825 rpm. The EVIC display should then read Launch Ready Release Brake. Release the brake and continue to hold wide open throttle to launch the vehicle.
The instructions are in the owners manual if you want a more detailed explanation. Personally if I wanted to launch hard on the street I'd just leave traction control on and then feather foot it out of the hole.