BUICK, CADILLAC, CHEVROLET, GEO, GMC
21-NA-124
Manufacturer communications
- Publication date
- 2022-12-14
- Received by NHTSA
- 2023-01-06
- NHTSA record numbers
- 10228888
Manufacturer summary
Original wording in English
This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.
Reported code forms
Check vehicle applicability
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| GMC | SIERRA DENALI | 2011 |
| GMC | SIERRA DENALI | 2010 |
| GMC | SIERRA DENALI | 2009 |
| GMC | SIERRA DENALI | 2008 |
| GMC | SIERRA DENALI | 2007 |
| GMC | SIERRA DENALI | 2003 |
| GMC | SIERRA DENALI | 2002 |
| GMC | SONOMA | 2006 |
| GMC | SONOMA | 2005 |
| GMC | SONOMA | 2004 |
| GMC | SONOMA | 2003 |
| GMC | SONOMA | 2002 |
| GMC | SONOMA | 2001 |
| GMC | SONOMA | 2000 |
| GMC | SONOMA CREW | 2005 |
| GMC | SONOMA CREW | 2004 |
| GMC | SONOMA CREW | 2003 |
| GMC | SONOMA CREW | 2002 |
| GMC | SONOMA CREW | 2001 |
| GMC | SUBURBAN | 2004 |
| GMC | SUBURBAN | 2003 |
| GMC | SUBURBAN | 2002 |
| GMC | SUBURBAN | 2001 |
| GMC | SUBURBAN | 2000 |
| GMC | T SERIES | 2009 |
| GMC | T SERIES | 2008 |
| GMC | T SERIES | 2007 |
| GMC | T4500 | 2005 |
| GMC | T6500 | 2009 |
| GMC | T6500 | 2008 |