Quick couple questions I have a 2010 Silverado 5.3L it has the active fuel management in it but I dont have the buttons to view it. How do I know when it activates and is there anything I can do to be able to view things like my tire pressure in my odometer line, I have the monitor but no way to view it. Also I have the electronic transfer case but the dash 4x4 light doesn't come on but the dial light does, does that dash light only come on with manual transfer cases. Also does anyone have any experience with a CAI or tonneau cover saving mileage?