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:

    Electrical system
    ...

    Engine compartment cover
     - Removing the engine compartment cover  - Installing the clips NOTICE  - After installing an engine compartment cover Make sure the cover is securely installed in its original ...

    Vehicle Service History
    When you have your vehicle serviced at a Lexus dealership, your service information is recorded in the Lexus National Service History database. This is the first database of its kind in the aut ...