First off, do you still have the invoice of the sales? If so that is all you need. You purchase parts from their dealership internet or part's counter. You do not need a vin# to claim a defect on a part. Call and talk to the GM. Be very professional and try to keep your cool. When talking to them make sure that you take notes. Get the names of the people you talk to just in case you have to give Nissan Corp. a call. Hope things work out and good luck.
