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P0016 on the 2019 Cadillac ATS

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

Bulletins for this model year that name P0016
23-NA-0912023-05-13. Service bulletin. This service bulletin provides information for dealers/technicians on Rough Idle, Malfunction Indicator Lamp (MIL) Illuminated After Engine Repairs with DTCs P0016 and/or P0018 Set.
PIP5730B2021-04-19. Service bulletin. This Preliminary information communicates additional diagnostic information for DTC's P0016 and P0018.
PIP5730A2021-02-16. Service bulletin. This Preliminary information communicates additional diagnostic information for DTC's P0016 and P0018.
PIP5730A2021-01-25. Service bulletin. This Preliminary information communicates additional diagnostic information for DTC's P0016 and P0018.
PIP57302020-06-15. Service bulletin. This Preliminary information communicates additional diagnostic information for DTC's P0016 and P0018.

5 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.