Hello I have a 2005 Sierra standard model (no bells no whistles). Not much as far as buttons for this and that. I have a Message that says to Change Enginer Oil. I changed it, but the message still comes up to change it. The manual said to use the DIC control buttons to change oil life back to 100%. Problem is, I dont have the electronics package and i have no buttons to modify the message. When I use the trip button, it just goes from mileage to trip to engine hours. if I hold it in, it has a langauge choice, but nothing else comes up. How do i get the Change oil message off the DIC when i dont have any buttons to use?