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:

    Theft deterrent system
    Immobilizer system The vehicle's keys have built-in transponder chips that prevent the hybrid system from starting if the key has not been previously registered in the vehicle's on-board computer. ...

    Driver monitor sensor (if equipped)
    The driver monitor sensor detects the direction the driver is facing. The system determines whether the driver is facing forward. The pre-collision system is operational when • Pre-collision se ...

    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 ...