P0158 on the 2004 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.
| 040604062 | 2004-12-27. Service bulletin. CHECK ENGINE LIGHT ILLUMINATED, DIAGNOSTIC TROUBLE CODES P0138, P0158 SET. *TT |
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| 01585 | 2004-02-25. Service bulletin. POST O2 WATER INTRUSION - P0137, P0138, P0140, P0141, P0157, P0158, P0160, P0161, P2232, AND P2235. SIT BULLETIN 1413806. *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.