C0550 on the 2003 GMC Savana
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.
| 3491 | 2005-05-11. Service bulletin. ANTI-LOCK BRAKING SYSTEM (ABS) TELLTALE ILLUMINATED WITH DIAGNOSTIC TROUBLE CODE C0550. *TT |
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| 01950 | 2004-05-25. Service bulletin. ABS TELLTALE ILLUMINATED, DIAGNOSTIC TROUBLE CODE C0550 STORED IN HISTORY.*MR |
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.