Look here: tutorial of How to use Foxwell NT530 to do Sensor calibration for Cadillac CTS Luxury Sedan 2011.
Manual Selection->(B) 2011->Passenger car->Cadillac->CTS->(Y) 3.0L V6 LF1->6-speed automatic->Yes->Other->Control Modules->Body control module->Special functions->BPP sensor calibration
One user operated incorrectly, and he feedback”
It only tells me if the Brake Pedal Position Sensor is applied or released.
I don’t see anywhere on this scanner that it can be calibrated.”
Therefore, the solution is written above.
Tech support: www.foxwelltool.com