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

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
GMCW55002010
GMCW55002009
GMCW55002008
GMCW55002007
GMCW55002006
GMCW55002005
GMCW55002004
GMCW55002003
GMCW55002002
GMCW55002001
GMCW55002000
GMCW5500HD2007
GMCYUKON2023
GMCYUKON2022
GMCYUKON2021
GMCYUKON2020
GMCYUKON2019
GMCYUKON2018
GMCYUKON2017
GMCYUKON2016
GMCYUKON2015
GMCYUKON2014
GMCYUKON2013
GMCYUKON2012
GMCYUKON2011
GMCYUKON2010
GMCYUKON2009
GMCYUKON2008
GMCYUKON2007
GMCYUKON2006

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