TOYOTA 2011 Avalon - Manual (Page 214)

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2-4. Using other driving systems
AVALON_U (OM41428U)
l To temporarily turn off the monitor when it is on.
Push the button. The indicator should turn orange.
The monitor will automatically turn on again after the engine switch is
turned OFF and ON.
l To manually turn on the monitor when it is turned off.
Push the button. The indicator should turn green.
l To select a display language (English, French or Spanish).
Push and hold the button for 6 to 12 seconds.
The monitor should turn on and the indicator should turn green.
Push the button.
Each time the button is pushed and released, the language
will change.
The warning message should flash 5 seconds after the button is
released, indicating that the change has been completed.
l To permanently disable the monitor.
Push and hold the button for 12 to 15 seconds.
The monitor will turn off and on after 6 seconds. Continue holding the
button down until the display turns back off.
The indicator should flash orange.
The monitor will not automatically turn on again after the engine switch is
turned OFF and ON.