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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
ChevroletAVALANCHE 15002009
ChevroletAVALANCHE 15002008
ChevroletAVALANCHE 15002007
ChevroletAVALANCHE 15002006
ChevroletAVALANCHE 15002005
ChevroletAVALANCHE 15002004
ChevroletAVALANCHE 15002003
ChevroletAVALANCHE 15002002
ChevroletAVALANCHE 25002013
ChevroletAVALANCHE 25002007
ChevroletAVALANCHE 25002006
ChevroletAVALANCHE 25002005
ChevroletAVALANCHE 25002004
ChevroletAVALANCHE 25002003
ChevroletAVALANCHE 25002002
ChevroletAVEO2018
ChevroletAVEO2017
ChevroletAVEO2016
ChevroletAVEO2015
ChevroletAVEO2014
ChevroletAVEO2013
ChevroletAVEO2012
ChevroletAVEO2011
ChevroletAVEO2010
ChevroletAVEO2009
ChevroletAVEO2008
ChevroletAVEO2007
ChevroletAVEO2006
ChevroletAVEO2005
ChevroletAVEO2004

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