See also:

Nissan Intelligent Key™ door buzzer (if so equipped)
The Intelligent Key door buzzer sounds if any one of the following improper operations is found. ● The ignition switch is not returned to the LOCK position when locking the doors. ● ...

Under the hood and vehicle
The maintenance items listed here should be checked periodically (for example, each time you check the engine oil or refuel). Battery*: Check the fluid level in each cell. It should be between t ...

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