See also:

Relative humidity
Corrosion will be accelerated in areas of high relative humidity, especially those areas where the temperatures stay above freezing and where atmospheric pollution exists and road salt is used. ...

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 ...

Special winter equipment
It is recommended that the following items be carried in the vehicle during winter. ● A scraper and stiff-bristled brush to remove ice and snow from the windows and wiper blades. ● ...