Home21NA124 · BUICK, CADILLAC, CHEVROLET, GMC
BUICK, CADILLAC, CHEVROLET, GMC

21NA124

Manufacturer communications

Publication date
2021-05-25
Received by NHTSA
2021-07-06
NHTSA record numbers
10198890 · 10199281

Multiple filings of the same bulletin are grouped here; original record numbers remain available.

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

P0442P0455

Check vehicle applicability

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

MakeModelModel year
ChevroletCHEVEROLET SS2016
ChevroletCHEVEROLET SS2015
ChevroletCHEVEROLET SS2014
ChevroletCHEVY VAN2000
ChevroletCHEYENNE2017
ChevroletCITY EXPRESS2016
ChevroletCITY EXPRESS2015
ChevroletCLASSIC2006
ChevroletCLASSIC2005
ChevroletCLASSIC2004
ChevroletCOBALT2010
ChevroletCOBALT2009
ChevroletCOBALT2008
ChevroletCOBALT2007
ChevroletCOBALT2006
ChevroletCOBALT2005
ChevroletCOLORADO2021
ChevroletCOLORADO2020
ChevroletCOLORADO2019
ChevroletCOLORADO2018
ChevroletCOLORADO2017
ChevroletCOLORADO2016
ChevroletCOLORADO2015
ChevroletCOLORADO2014
ChevroletCOLORADO2012
ChevroletCOLORADO2011
ChevroletCOLORADO2010
ChevroletCOLORADO2009
ChevroletCOLORADO2008
ChevroletCOLORADO2007

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