2018-05-07. VEHICLE CHECK DISPLAYS DUE IN CBS DATA AFTER RESET FOR 2ND OIL SERVICE: After reset of service interval (e.g. oil change), the vehicle check is displayed as "Due" (yellow). NHTSA's copy of the document (PDF)
Bulletins from the manufacturer that mention a maintenance schedule or a service interval, as NHTSA summarises them. They are not the schedule itself: read the document, and the owner's manual.
Position 8 of a VIN names the engine on many vehicles: how to read a VIN. Safety equipment depends on the trim, so decode a VIN to see what one vehicle has.