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:

    Back door
    The back door can be locked/unlocked and opened by the following procedures. Locking and unlocking the back door Entry function Wireless remote control Door lock switch Opening the back door from ...

    Automatic High Beam
    The Automatic High Beam uses an in-vehicle camera sensor to assess the brightness of streetlights, the lights of oncoming and preceding vehicles, etc., and automatically turns high beam on or off ...

    Obtaining Warranty Service
    BY GEOGRAPHIC REGION In the United States, U.S. Territories and Canada To obtain warranty service in the United States, U.S. territories or Canada, take your vehicle to an authorized Lexus dealer ...