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:

    Maintenance requirements
    To ensure safe and economical driving, day-to-day care and regular maintenance are essential. It is the owner’s responsibility to perform regular checks. Lexus recommends performing the followin ...

    Inputting letters and numbers/list screen operation
    When searching for an address or name, or entering data, letters and num- bers can be input via the screen. • Keyboard layout can be changed. TO INPUT LETTERS AND NUMBERS 1 Touch “A-Z” to ...

    Overview button and guidance screen
    *: Press and hold the “PWR·VOL” knob for 3 seconds or more to turn off the screen and restart the navigation system. Do this when the vehicle-mounted device response is extremely slow. ...