How do I properly calibrate the incline on my NordicTrack treadmill?

To properly calibrate the incline on your NordicTrack treadmill, one must begin by plugging in the machine and inserting the safety key. Once the treadmill's display is active, he or she needs to enter the calibration mode. This can typically be done by pressing and holding both the 'Stop' and 'Speed Increase' buttons simultaneously for several seconds until the console enters into maintenance mode. The exact combination may vary by model, so it's recommended to consult the user manual for specific instructions. Then, one selects the calibration option, which will initiate an automatic process where the treadmill will adjust itself to calibrate the incline motor. The treadmill might rise to its highest incline position and then lower back down as part of this process. Upon completion of this cycle, the incline calibration is set. Always ensure that no objects are blocking the incline mechanism during calibration, and do not stand on the belt while calibration is taking place.