if any product which buyer considers as a defective product is found in a motor vehicle or automotive component after such time as the motor vehicle or automotive component on which the part issue has been installed leaves the plant or storage designated by buyer or such time as the service part at issue installed on motor vehicle or automotive component and buyer reasonably believes that seller is responsible for such defective product,buyer shall issue ..... indicating the nature of trouble or a similar report using electric mail or facsimile