Turning the Automatic Sound Levelizer (ASL) on/off

Turning the “TUNE/SEL” knob clockwise turns on the ASL, and turning the “TUNE/SEL” knob counterclockwise turns off the ASL.

ASL automatically adjusts the volume and tone quality according to the noise level as you drive your vehicle.

    See also:

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    Selecting and scanning a folder
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    How to Get Help
    To obtain roadside assistance, take the following steps: 1) Call (800)25-LEXUS (800/255- 3987). 2)Have as much of the following information as possible: • 17-digit Vehicle Identification Number ( ...