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 ...

Air pollution
Industrial pollution, the presence of salt in the air in coastal areas, or heavy road salt use accelerates the corrosion process. Road salt also accelerates the disintegration of paint surfaces. ...

Wheels and tires
If you have a flat tire, see “Flat tire” in the “In case of emergency” section of this manual. ...