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:
Clearing the programmed information
Individual buttons cannot be cleared. However,
to clear all programming, press and hold the two
outside buttons and release when the indicator
light begins to flash (approximately 20 seconds). ...
Speaker Adaptation (SA) mode
Speaker Adaptation allows up to two out-of
dialect users to train the system to improve
recognition accuracy. By repeating a number of
commands, the users can create a voice model
of their own ...
Speedometer
Speedometer
The speedometer indicates vehicle speed in
miles per hour (MPH) or kilometers per hour
(km/h). ...