2 People,key on engine off, one person in car pushing brake pedal and watching light, second person opens bleeder on front caliper, as pedal goes down and when light goes off immediatley stop the brake pedal and close the bleeder. may take several attempts and if the light does not go off you will need to repeat the process at the rear brakes. What your doing is using fluid pressure to center the valve. Also this is assuming that the brakes have been properly bled.