P0128 on the 2003 Cadillac CTS
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.
| 041602 | 2002-11-10. Service bulletin. SOME CUSTOMERS MAY EXPERIENCE AN SERVICE ENGINE SOON LIGHT WITH THE DIAGNOSTIC TROUBLE CODE P0128 SET. *TT |
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| 040402 | 2002-11-09. Service bulletin. SERVICE ENGINGE SOON LIGHT WITH DIAGNOSTIC TROUBLE CODE P0128 SET. *TT |
2 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.