2021 3.0 dash messages

[mamumtsllc]

Hey guys. I have a 21 pickup with the 3.0 that has mileage count down and the service emissions message on the dash. All codes in ecm are clear. Only shows permanent codes in obd2 side of the snap on scanner. Anyone have any clues to tricks to get these codes to go away?

Thanks

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[Chevy1925]

Yes, you didn’t follow the proper reset procedures after you either fixed the issue or cleared the code/s. There are levels of warning for the aftertreatment (up to 10) and if you don’t follow the appropriate reset for certain parts in the modules, you can have those messages/internal warning and still go into a limp mode or be in limp mode.

You will need to list the codes you had, what you did to fix it (if you did fix it) and what kind of scanner you have.