Home21-NA-124 · BUICK, CADILLAC, CHEVROLET, GEO, GMC
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.

NHTSA manufacturer communications ↗

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.

MakeModelModel year
GMCEXPRESS2009
GMCEXPRESS2002
GMCEXPRESS2001
GMCEXPRESS2000
GMCF SERIES2006
GMCF SERIES2005
GMCF SERIES2004
GMCF SERIES2001
GMCF SERIES2000
GMCF62001
GMCF62000
GMCF72001
GMCF72000
GMCG SERIES2003
GMCG SERIES2002
GMCG SERIES2001
GMCG SERIES2000
GMCG VAN2002
GMCG VAN2001
GMCG VAN2000
GMCG VAN BUS2011
GMCG VAN BUS2010
GMCG VAN BUS2009
GMCG VAN BUS2008
GMCG VAN BUS2007
GMCG VAN BUS2006
GMCG VAN BUS2005
GMCG VAN BUS2004
GMCG VAN BUS2003
GMCG VAN BUS2002

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