Nissan Maxima Owners Manual: Mechanical key
The Intelligent Key contains the mechanical key, which can be used in case of a discharged battery.
To remove the mechanical key, release the lock knob on the back of the Intelligent Key.
To install the mechanical key, firmly insert it into the Intelligent Key until the lock knob returns to the lock position.
The mechanical key can be used for operation in the same way as an ordinary key.
Always carry the mechanical key installed in the Intelligent Key slot.
For additional information, refer to "Doors" in this section and "Storage" in the "Instruments and controls" section of this manual.