Dt*: the contact stated when the brake pedal is applied, at various speeds, the brakes jerk. the dealership replaced the brake control module and sensor, but the problem has returned. updated 4/11/2006 - the day the vehicle was purchased the consumer noticed that the stabilitrack service light and stabilitrack light was illuminated. the vehicle made noise when the brake was applied or when the vehicle accelerated. the consumer contacted the dealer and took the vehicle in to be serviced. the vehicle was returned tot he consumer and the light was off but the next day the noise returned. *nm