See also:

Never leave these keys in the vehicle.
As many as 4 Intelligent Keys can be registered and used with one vehicle. The new keys must be registered by a NISSAN dealer prior to use with the Intelligent Key and NISSAN Vehicle Immobilizer ...

Opener operation
WARNING: - Do not drive with the trunk lid open. This could allow dangerous exhaust gases to be drawn into the vehicle. See Exhaust gas in the Starting and driving section of this manual. ...

Unlocking doors
1. Press the button on the Intelligent Key. 2. The hazard warning lights flash once. 3. Press the button again within 5 seconds to unlock all doors. All doors will be locked automatically ...