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:

    Customization
    Your vehicle includes a variety of electronic features that can be personalized to your preferences. Programming of these preferences can be performed by your Lexus dealer. It is also possib ...

    Adjusting the sensitivity of the air intake control in automatic mode (vehicles with a rear automatic air conditioning system)
    Press for 2 or more seconds. Press “” (increase) or “” (decrease) on the temperature control button on the driver’s side. From - 3 (low) to 3 (high) can be set. ...

    Navigation system: basic functions
    Basic information before operation ...