I've got two, send me $39.00 its yours, its new in the box.Tranny service is that every oil change or every other I 'll look that up,what page is that on,my book got soaked in oil the last time I changed may oil. My 2014, 2500 requires dealership $10,000 edition,so I was told.You might have more info on that subject,please correct me if I'm wrong.M/B wants $120.00 hour to plug the scanner in,I bet Auto Zone is free.