Here we have a little how to video! I am by no means a mechanic, Ill show you my process for the "preform maintenance" light on my 2016 RAM 2500 Cummins turbo diesel. In my opinion it's a fairly simple job, with the research and information provided you can do this service yourself. Saving you a large sum of money, between $350.00-750.00. This project took me roughly 35 minutes and that's with filming. The filter costs $54.00 (linked below), please let me know in the comments if you have any questions!