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
BuickCASCADA2019
BuickCASCADA2018
BuickCASCADA2017
BuickCASCADA2016
BuickCENTURY2005
BuickCENTURY2004
BuickCENTURY2003
BuickCENTURY2002
BuickCENTURY2001
BuickCENTURY2000
BuickENCLAVE2021
BuickENCLAVE2020
BuickENCLAVE2019
BuickENCLAVE2018
BuickENCLAVE2017
BuickENCLAVE2016
BuickENCLAVE2015
BuickENCLAVE2014
BuickENCLAVE2013
BuickENCLAVE2012
BuickENCLAVE2011
BuickENCLAVE2010
BuickENCLAVE2009
BuickENCLAVE2008
BuickENCORE2021
BuickENCORE2020
BuickENCORE2019
BuickENCORE2018
BuickENCORE2017
BuickENCORE2016

Data coverage →