Update!
I have removed the center console and pressed the Auto-Hold buttons and nothing! So, either tinymilad is lying or it just works for him/her.
Everything they he/she said was there, even a rubber actuator that allows you to press the Auto-Hold button, but it does nothing.
Pressed it while driving, tried holding it while driving, nothing! There's 2 LEDs, one is red for the parking brake and one is orange, for the parking break also? No green LED like the Auto-Hold defaults.
I did not however, press both or press the right one... Will have to try that. Maybe someone else will follow the videos and try it before I disassemble it again. Update us.
Thanks for the guys below for the helpful videos for this venture:
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