# P0138 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.

## Bulletins for this model year that name P0138

- [10011045](https://open.wenmarpro.com/bulletins/10011045), 2004-12-27: CHECK ENGINE LIGHT ILLUMINATED, DIAGNOSTIC TROUBLE CODES P0138, P0158 SET. \*TT
- [10005425](https://open.wenmarpro.com/bulletins/10005425), 2004-02-25: POST O2 WATER INTRUSION \- P0137, P0138, P0140, P0141, P0157, P0158, P0160, P0161, P2232, AND P2235. SIT BULLETIN 1413806. \*TT