2009 Lexus SC 430 Owners Manual - Page 172

3-2. Using the audio system n Adjusting sound quality Turn the Sound quality mode Bass Midrange Treble Forward-rear balance Left-right balance dial to the left or right. Mode displayed BAS MID TRE FAD BAL Level -5 to 5 -5 to 5 -5 to 5 F7 to R7 L7 to R7 Turn to the left Low Turn to the right High Shifts to front Shifts to rear Shifts to left Shifts to right 3 n Adjusting the Automatic Sound Levelizer (ASL) ASL automatically adjusts the volume and tone quality according to the noise level as you drive your vehicle. Turn the while the ASL mode is displayed to turn on or off the automatic sound levelizer. n Audio sound adjustment Interior features Your audio system adjusts to the optimum volume and tone quality automatically when you are opening or closing the retractable hardtop. While the system is adjusting the audio sound, the audio sound fades out and then fades in. 175