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
GMCYUKON2016
GMCYUKON2015
GMCYUKON2014
GMCYUKON2013
GMCYUKON2012
GMCYUKON2011
GMCYUKON2010
GMCYUKON2009
GMCYUKON2008
GMCYUKON2007
GMCYUKON2006
GMCYUKON2005
GMCYUKON2004
GMCYUKON2003
GMCYUKON2002
GMCYUKON2001
GMCYUKON2000
GMCYUKON DENALI2013
GMCYUKON DENALI2012
GMCYUKON DENALI2011
GMCYUKON DENALI2010
GMCYUKON DENALI2009
GMCYUKON DENALI2008
GMCYUKON DENALI2007
GMCYUKON DENALI2006
GMCYUKON DENALI2005
GMCYUKON DENALI2004
GMCYUKON DENALI2003
GMCYUKON DENALI2002
GMCYUKON DENALI2001

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