Toyota Lexusc Owner's Handbook Manual page 425

AUDIO
(d) Changing menu page or track (video CD only)
Push the "D. Menu Next" or "D. Menu Prev." switch while
the disc menu is displayed. The next or previous page will
appear on the screen.
Push the "D. Menu Next" or "D. Menu Prev." switch while
the player is playing video. The next or previous track will
be searched and played.
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(e) Changing a multiplex transmission (video CD only)
Push the "Main/Sub" switch to change a multiplex
transmission. The mode changes from Main/Sub to Main
to Sub and back to Main/Sub by pushing the "Main/Sub"
switch.