P0742 on the 2003 Cadillac Deville
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.
| 020730039E | 2004-01-07. Service bulletin. FIRM TRANSMISSION SHIFTS, SHUDDER/CHUGGLE, TRANSMISSION WON'T DOWNSHIFT ON DECELERATION, SERVICE ENGINE SOON LIGHT ILLUMINATED, DIAGNOSTIC TROUBLE CODE P0742 SET. *TT UPDATE. *TT |
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| 020730039C | 2003-09-26. Service bulletin. FIRM TRANSMISSION SHIFTS, SHUDDER/CHUGGLE, TRANSMISSION WON'T DOWNSHIFT ON DECELERATION, SERVICE ENGINE SOON LIGHT ILLUMINATED, DIAGNOSTIC TROUBLE CODE P0742 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.