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
BuickRAINIER2007
BuickRAINIER2006
BuickRAINIER2005
BuickRAINIER2004
BuickRAINIER2003
BuickREGAL2020
BuickREGAL2019
BuickREGAL2018
BuickREGAL2017
BuickREGAL2016
BuickREGAL2015
BuickREGAL2014
BuickREGAL2013
BuickREGAL2012
BuickREGAL2011
BuickREGAL2010
BuickREGAL2009
BuickREGAL2008
BuickREGAL2005
BuickREGAL2004
BuickREGAL2003
BuickREGAL2002
BuickREGAL2001
BuickREGAL2000
BuickREGAL TOURX2018
BuickRENDEZVOUS2007
BuickRENDEZVOUS2006
BuickRENDEZVOUS2005
BuickRENDEZVOUS2004
BuickRENDEZVOUS2003

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