Lexus RX300 2003, Owner'S Manual

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Using your audio system: some basics
This section describes some of the basic features of the Lexus
audio system. Some information may not pertain to your
system.
Your audio system works when the ignition key is in the “ACC”
or “ON” position.
NOTICE
To prevent the battery from being discharged, do not
leave the car audio on longer than necessary when the
engine is not running.
(a) Turning the system on and off
20R011
Push this knob to turn the audio system on and off. Turn
this knob to adjust the volume.
The system turns on in the last mode used.
20R043a
Push the “MUTE” button to decrease the volume
momentarily.
To return to its original volume, push the same button again.
When the audio system is turned on, the mute is always off
regardless of the previous mode.