System Check Mode in 2012 v Level 5

Briefly, how does one access it? I've read that one hits the power button once without the brake,
opens the NAV system, and holds the INFO button down while turning the headlights on and
off three times. When I do this and open my NAV system, I see no INFO button, just OPTIONS
and DEST, and holding these down does not generate the right screen. I've seen other differences
between what's described in the owner's manual and how the display behaves; do I need a software
update? Thanks in advance.