C0550 on the 2003 Cadillac Escalade
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.
| 040849006A | 2004-08-16. Service bulletin. SERVICE MESSAGE DISPLAYED, DIAGNOSTIC TROUBLE CODE (DTC) C0550 SET (REPROGRAM EBCM). *MJ UPDATE. ORIGINAL NOT YET RECEIVED. *TT |
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| 030525005 | 2003-12-04. Service bulletin. SERVICE STABILITY MESSAGE AND DIAGNOSTIC TROUBLE CODES (DTCS) C0455 OR C0550 SET. *TT GM ADMINISTRATIVE MESSATE. *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.