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
ChevroletG15002005
ChevroletG15002004
ChevroletG15002003
ChevroletG252002
ChevroletG252001
ChevroletG252000
ChevroletG25002005
ChevroletG25002004
ChevroletG25002003
ChevroletG302002
ChevroletG302001
ChevroletG352002
ChevroletG352001
ChevroletG352000
ChevroletG35002008
ChevroletG35002005
ChevroletG35002004
ChevroletG35002003
ChevroletG45002018
ChevroletH SERIES2001
ChevroletHHR2011
ChevroletHHR2010
ChevroletHHR2009
ChevroletHHR2008
ChevroletHHR2007
ChevroletHHR2006
ChevroletIMPALA2020
ChevroletIMPALA2019
ChevroletIMPALA2018
ChevroletIMPALA2017

Data coverage →