2011 Toyota Tundra Double Cab Owners Manual - Page 384

3-2. Using the audio system Type B and C Turning Mode displayed BASS MID TREB FADE adjusts the level. Sound quality mode Bass* Mid-range* (type B only) Treble* Front/rear volume balance Left/right volume balance Turn to the left Turn to the right Level -5 to 5 -5 to 5 -5 to 5 F7 to R7 Low High Shifts to rear Shifts to front BAL L7 to R7 Shifts to left Shifts to right *:The sound quality level is adjusted individually in each audio mode. n Adjusting the Automatic Sound Levelizer (ASL) Type A When "ASL" is selected, turning to the right changes the "ASL" level in the order of "LOW", "MID" and "HIGH". Turning to the left turns "ASL" off. ASL automatically adjusts the volume and tone quality according to vehicle speed. 358