Adjusting The Volume - Lexus LS600hL Owner's Manual

Turning the power on/off
Press the "PWR" switch to turn the front audio system on.
Pressing the button again turns the system off.
Changing the audio source
Press the "MODE" switch to change the audio source.
Each press changes the mode sequentially if the desired mode is ready to
use.

Adjusting the volume

Press "" on the "VOL" switch to increase the volume and "" to decrease
the volume.
Press and hold the button to continue increasing or decreasing the volume.
LS600hL_U(OM50D26U)
5-4. Using the audio system
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