Service bulletins for the 2004 Cadillac CTS
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
567 on file from NHTSA, as of 2026-10-19.
About P0158 on the 2004 Cadillac CTS: what the code means, and the bulletins and recalls about the same components.
By type
By component
By trouble code
Only bulletins with trouble code: P0158 are shown. Show all
| 040604062 | 2004-12-27. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. CHECK ENGINE LIGHT ILLUMINATED, DIAGNOSTIC TROUBLE CODES P0138, P0158 SET. *TT |
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| 01585 | 2004-02-25. Service bulletin. ELECTRICAL SYSTEM. POST O2 WATER INTRUSION - P0137, P0138, P0140, P0141, P0157, P0158, P0160, P0161, P2232, AND P2235. SIT BULLETIN 1413806. *TT |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.