Yes print them out and take them to the dealer. They have the same thing but it seems most places never think to look at them. So you'll save some headache doing it for them. They are official but they aren't all meant to be warranty so it's possible you might have to pay for some of the work. I'd say 90% or more are warranty items though.hardeight said:What are these exactly? I see them at nissanhelp.com but are they official? Can I print out the number and take it to my dealer or something? What exactly do I do? I am having alot of these problems.