Diamond logic help?

[DVT873]

When the check marks are grayed out like yours are that means your authorization level isn't high enough to change them. Sometimes even the dealer doesn't have authorization.
They have to open a case file with Navistar support. NAV will probably want to see a copy of the title and or registration. There may be a charge from Navistar.

For example there is a $100 charge from NAV to turn off CARB 5 minute idle. That does include a new data plate for the engine. You may need to find a dealer, who has someone who knows WTF their doing to get this shut off.