See also:

Emission control system warranty
Your NISSAN is covered by the following emission warranties. For US: - Emission Defects Warranty - Emissions Performance Warranty Details of these warranties may be found with other vehicle w ...

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 ...

Freeing a frozen door lock
To prevent a door lock from freezing, apply deicer through the key hole. If the lock becomes frozen, heat the key before inserting it into the key hole, or use the remote keyless entry keyfob (i ...