See also:

Battery replacement
CAUTION Be careful not to allow children to swallow the battery or removed parts. ...

If your vehicle overheats
If your vehicle is overheating (indicated by an extremely high temperature gauge reading) or if you feel a lack of engine power, detect abnormal noise, etc., take the following steps. WARNING: ...

NISSAN vehicle immobilizer system
The NISSAN Vehicle Immobilizer system will not allow the engine to start without the use of the registered key. If the engine fails to start using a registered key (for example, when interference ...