See also:

New for 2012
There are no significant changes for 2012. ...

NISSAN Voice Recognition System (if so equipped)
NISSAN Voice Recognition allows hands-free operation of the systems equipped on this vehicle, such as phone and vehicle information. There are two voice recognition modes of operation available ...

NISSAN dealer.
However, now and then you may notice light spark knock for a short time while accelerating or driving up hills. This is not a cause for concern, because you get the greatest fuel benefit when ther ...