# C0550 on the 2003 GMC Sierra

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 C0550

- [10014878](https://open.wenmarpro.com/bulletins/10014878), 2005-05-11: ANTI\-LOCK BRAKING SYSTEM \(ABS\) TELLTALE ILLUMINATED WITH DIAGNOSTIC TROUBLE CODE C0550. \*TT
- [10007624](https://open.wenmarpro.com/bulletins/10007624), 2004-07-06: SERVICE 4WD LIGHT ON NO CODES BESIDES U1000 CODES OR C0550. \*MJ
- [10007065](https://open.wenmarpro.com/bulletins/10007065), 2004-05-25: ABS TELLTALE ILLUMINATED, DIAGNOSTIC TROUBLE CODE C0550 STORED IN HISTORY.\*MR
- [10001867](https://open.wenmarpro.com/bulletins/10001867), 2003-07-23: ANTI\-LOCK BRAKE SYSTEM \(ABS\) TELLTALE LIGHT BEING CONSTANTLY ILLUMINATED WITH A DIAGNOSTIC TROUBLE CODE C0550 BEING STORED. \*TT \*JB