See also:

Never leave these keys in the vehicle.
Additional or replacement keys. If you still have a key, the key number is not necessary when you need extra NISSAN Vehicle Immobilizer System keys. Your dealer can duplicate your existing key. ...

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

Push-button ignition switch positions
LOCK (Normal parking position): The ignition switch can only be locked in this position. The ignition switch will be unlocked when it is pushed to the ACC position while carrying the Intellige ...