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:
Using the Bluetooth® audio system
Bluetooth® audio system
The Bluetooth® audio system enables you to enjoy music played on a
portable
digital audio player (portable player) from the vehicle speakers via
wireless communication.
...
Event data recorder
This vehicle is equipped with an event data recorder (EDR). The main purpose
of an EDR is to record, in certain crash or near crash-like situations, such as
an air bag deployment or hitting a road ...
Replacement parts
To ensure optimum performance
and maintain the quality built into
your vehicle’s emission control systems,
Lexus recommends the use of
Genuine Lexus Parts when servicing
or repairing the system ...