The procedure is to apply the parking brake, place the transmission in the park position for automatic transmission or neutral for manual transmission, install a scan tool, turn on the ignition, with the engine off, navigate to the vehicle control systems menu, select computer/integrating systems menu item, select module setup menu item, select body control module (BCM) menu and then select the Brake Pedal Position (BPP) sensor calibration and follow the directions displayed on the screen.