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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
ChevroletW45002001
ChevroletW45002000
ChevroletW55002010
ChevroletW55002009
ChevroletW55002008
ChevroletW55002007
ChevroletW55002006
ChevroletW55002005
ChevroletW55002004
ChevroletW55002002
ChevroletW55002001
ChevroletW55002000
ChevroletYUKON2003
ChevroletYUKON2002
ChevroletYUKON2001
ChevroletYUKON2000
ChevroletYUKON XL2000
GeoMETRO2001
GeoMETRO2000
GeoPRIZM2002
GeoPRIZM2001
GeoPRIZM2000
GeoTRACKER2002
GeoTRACKER2001
GeoTRACKER2000
GMC6H2000
GMC7H2000
GMCACADIA2023
GMCACADIA2022
GMCACADIA2021

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