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:

    Rear differential
    *: Your Lexus vehicle is filled with “Toyota Genuine Differential Gear Oil” at the factory. Use Lexus approved “Toyota Genuine Differential Gear Oil” or an equivalent of matching qualit ...

    Using the audio system
    Audio system - Vehicles with a navigation system. Owners of models equipped with a navigation system should refer to the “Navigation System Owner’s Manual”. - Vehicles without a navigation s ...

    Accessories, spare parts and modification of your Lexus
    A wide variety of non-genuine spare parts and accessories for Lexus vehicles are currently available in the market. You should know that Toyota does not warrant these products and is not responsib ...