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:

    Brake fluid
     - Checking fluid level The brake fluid level should be between the “MAX” and “MIN” lines on the tank.  - Adding fluid Make sure to check the fluid type and prepare the necessar ...

    Vehicle Service History
    When you have your vehicle serviced at a Lexus dealership, your service information is recorded in the Lexus National Service History database. This is the first database of its kind in the aut ...

    Roadside Assistance
    Lexus roadside assistance coverage is for 48 months from your vehicle’s in-service date, regardless of mileage. Coverage is provided 24 hours a day, 365 days a year, for vehicles operated in ...