2009 Toyota Corolla Owners Manual - Page 187

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 settings • Sound quality and volume balance (→P. 222) The sound quality and balance setting can be changed to produce the best sound. • Volume and tone quality level (Automatic Sound Levelizer) (→P. 223) 3 Interior features Using the AUDIO CONTROL function n Changing sound quality modes Pressing order. "BAS"→"MID"*→"TRE"→"FAD"→"BAL"→"ASL" selects the mode to be changed in the following *: JBL brand audio system 221