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
ChevroletSUBURBAN2000
ChevroletT SERIES2010
ChevroletT SERIES2009
ChevroletT SERIES2008
ChevroletT SERIES2007
ChevroletT SERIES2006
ChevroletT SERIES2005
ChevroletT SERIES2004
ChevroletT SERIES2003
ChevroletTAHOE2021
ChevroletTAHOE2020
ChevroletTAHOE2019
ChevroletTAHOE2018
ChevroletTAHOE2017
ChevroletTAHOE2016
ChevroletTAHOE2015
ChevroletTAHOE2014
ChevroletTAHOE2013
ChevroletTAHOE2012
ChevroletTAHOE2011
ChevroletTAHOE2010
ChevroletTAHOE2009
ChevroletTAHOE2008
ChevroletTAHOE2007
ChevroletTAHOE2006
ChevroletTAHOE2005
ChevroletTAHOE2004
ChevroletTAHOE2003
ChevroletTAHOE2002
ChevroletTAHOE2001

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