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
ChevroletHHR2006
ChevroletIMPALA2020
ChevroletIMPALA2019
ChevroletIMPALA2018
ChevroletIMPALA2017
ChevroletIMPALA2016
ChevroletIMPALA2015
ChevroletIMPALA2014
ChevroletIMPALA2013
ChevroletIMPALA2012
ChevroletIMPALA2011
ChevroletIMPALA2010
ChevroletIMPALA2009
ChevroletIMPALA2008
ChevroletIMPALA2007
ChevroletIMPALA2006
ChevroletIMPALA2005
ChevroletIMPALA2004
ChevroletIMPALA2003
ChevroletIMPALA2002
ChevroletIMPALA2001
ChevroletIMPALA2000
ChevroletL SERIES2002
ChevroletL SERIES2001
ChevroletLOW CAB FORWARD 65002018
ChevroletLUMINA2002
ChevroletLUMINA2001
ChevroletLUMINA2000
ChevroletM SERIES2002
ChevroletM SERIES2001

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