Initialization
When the ignition switch is placed in the ON
position, NISSAN Voice Recognition is initialized,
which takes a few seconds. If the 
button is
pressed before the initialization completes, the
system will announce “Hands-free phone system
not ready” and will not react to voice commands.
See also:
How to use the SETTING button
When the SETTING button is pressed, the Settings
screen will appear on the display. You can
select and/or adjust several functions, features
and modes that are available for your vehicle.
...
NISSAN Voice Recognition Alternate
Command Mode
The Alternate Command Mode enables control
of the Audio, Climate Control and Display systems
as well as additional commands for the
Vehicle Information, Phone and Navigation systems.
With this set ...
Warning/indicator lights and audible reminders
Warning/indicator lights and audible reminders ...