Oh dear, doesn't sound good
All you should need to do is press the 'My Car' button with the ignition switches on and you should see the menu in the centre screen.
Are all the other functions working? Does the radio display on the screen, if you change the cabin temp does that show, etc?
If the do could it simply be something stuck behind the switch stopping it from going home properly? Or perhaps another button is down preventing the system from seeing any other button press?
I don't know if any other ways into the Menu structure other than what you are doing and pressing the centre of the button on the right of the steering wheel.