C0240 on the 2005 Pontiac Grand Prix
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.
| 3975 | 2006-05-05. Service bulletin. INTERMITTENT DRIVEABILITY CONCERNS, TRACTION CONTROL SYSTEM WARNING LAMP, SERVICE STABILITY SYSTEM MESSAGE, SERVICE TRACTION SYSTEM MESSAGE, DIAGNOSTIC TROUBLE CODE B1390, C0236 AND/OR C0240. *AK |
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1 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.