See also:

Locking with key
The power door lock system allows you to lock or unlock all doors at the same time. Turning the key toward the front 1 of the vehicle locks all doors. Turning the key one time toward the rear 2 ...

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. ...

Brake system
The brake system has two separate hydraulic circuits. If one circuit malfunctions, you will still have braking at 2 wheels. ...