Here's how the transmission is put into this mode:
"Accelerate the vehicle moderately to 7th gear, drive at a constant speed between 50-60 mph. The learn process may produce small, regular torque pulsations. This is normal, and indicates the learn process is working."
Page 58 of this article speaks to it -https://atracom.blob.core.windows.ne...troduction.pdf
Hope this helps!