well here is the deal. have an 07 3500 6.7. at 67500 miles the perform svc message came up on the over head. looked it up in owners manual says the egr valve, egr cooler, crank case filter need to svc of replacement and consult dealer. went to dealer they said they have no clue how to reset overhead without putting it on computer and that starts at $125 just to hook it up. Anyone else out there hit the mileage mark yet and did u clear code or just drive it????

 

that all should be covered under your warrenty, might give it it a shot...

 

nope not covered in my state.