As the lawsuit tells it, General Motors deliberately failed to disclose the transmission defect to owners and lessees of the aforementioned vehicles. The company "has known about the transmission defect for years," the lawsuit says, and has put out 13 versions of a technical service bulletin related to the shifting problem, none of which contain a true fix for the defect. The case posits that GM is playing the situation close to the vest until proposed class members' warranties are up. From the complaint: