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:

    Quality Control
    You may have noticed a few miles on the odometer when you took delivery of your Lexus. This mileage is a result of the comprehensive process used to ensure the quality of your vehicle. This proces ...

    Selecting a play mode
    Press the “TUNE/SEL” knob to select iPod menu mode. Turning the “TUNE/SEL” knob changes the play mode in the fol- lowing order: “PLAYLISTS” → “ARTISTS” → “ALBUMS ...

    Have the vehicle inspected by your Lexus dealer immediately.
    Failing to investigate the cause of the following warnings may lead to the system operating abnormally and possibly cause an accident. Have the vehicle inspected by your Lexus dealer immediately. ...