Toyota 2006 4runner Owner's Manual page 246

If " " appears on the screen when
you select a switch, it indicates that
the switch cannot work.
246
'06 4Runner_U (L/O 0508)
On the screen
Controller
To turn off the switches on the screen,
push the "OPTION" button on the control-
ler once again or push the "Hide Buttons"
on the screen.