Nissan Credit is the line of credit that Nissan offers when customers purchase a new vehicle from their company. Nissan Motor Company is a Japanese automobile manufacturer that sells cars under the brands Infiniti, Nissan, and Datsun. Nissan is the sixth largest automaker in the world with competition from Toyota, GM, Volkswagon, Hyundai, and Ford. If you are trying to get in touch with a live customer service agent from Nissan Credit click below.