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:

    Your warranty rights and obligations
    The California Air Resources Board (CARB) and Lexus are pleased to explain the emission control system warranty for your 2013 vehicle. In California, new motor vehicles must be designed, built an ...

    Transfer
    *: Your Lexus vehicle is filled with “Toyota Genuine Transfer Gear oil LF” at the fac- tory. Use Lexus approved “Toyota Genuine Transfer Gear oil LF” or an equiva- lent of matching quali ...

    Perchlorate Material
    Special handling may apply, See www.dtsc.ca.gov/hazardouswaste/perchlorate. Your vehicle has components that may contain perchlorate. These components may include airbag, seat belt pretensioners, a ...