2008 Toyota Highlander Owners Manual - Page 317

3 -2 . U sing t he a udio syst e m Opt im a l use of t he a udio syst e m Displays the current mode Changes the following setting l Sound quality and volume balance (→P. 289) The sound quality and balance setting can be changed to produce the best sound. l Automatic Sound Levelizer ON/OFF (→P. 290) l Rear seat entertainment system lock ON/OFF (→P. 290) 288