See also:

Engine serial number
MR20DE QR25DE The number is stamped on the engine as shown. ...

Reporting safety defects (US only)
If you believe that your vehicle has a defect which could cause a crash or could cause injury or death, you should immediately inform the National Highway Traffic Safety Administration (NHTSA) ...

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 ...