A defect exists in the jaguar xk convertible, which has repeatedly and unpredictably prevented the jaguar from operating, apparently in connection with a concurrent draining of the car's battery. the defect renders the automobile unable to reliably start and deprives the owner of the utility of the vehicle. despite the vehicle being serviced by jaguar's authorized dealer for this defect on eight separate occasions and replacing the battery and battery monitor multiple times, the defect remains.