Precautions For Intelligent Key System
WARNING: This page is about a different car, the 2016 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.
The transponder [the chip for IVIS (NATS) ID verification] is integrated into the Intelligent Key.
In that case, the IVIS (NATS) ID verification can be performed when Intelligent Key backside is contacted to push-button ignition switch. If verification result is OK, engine can be started.