Lexus 2004 GX470 Owner's Manual page 319

AUDIO
(d) DVD player operation switches
The DVD player can be operated with the controller
buttons directly.
304
The player can also be operated with the switches on the
screen.
To operate the switches on the screen, select the switch by the
joy stick and push the "ENT" button. You cannot select the
switches on the screen by touching them directly.
When the switch is selected by the joy stick, the outline of the
switch changes to blue. Push the "ENT" button, and the switch
will be highlighted in green.
Finish