Lexus LS460 2011 Owner's Manual page 540

3-4. Using the rear seat entertainment system

When a front passenger selects "Setup menu"

Rear system lock
P. 382

Error messages
If "Region code error" is displayed, check the region code printed on the
DVD matches the player's region code.
If a different message is displayed: P. 446
508
LS460_EE
To cancel the set up operation from the
front seat, select "Play".