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:
Drive belts
1. Alternator
2. Water pump
3. Drive belt auto-tensioner
4. Crankshaft pulley
5. Air conditioner compressor
Be sure the ignition switch is in the OFF
or LOCK position before servicing ...
Safety
Traction control is available on select models. The Frontier offers advanced
brake controls in 4x4 models, including an electronic stability system, Hill
Descent Control and Hill Start Assist. HDC ...
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). ...