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Service bulletin 22-NA-056

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10209397
Published by NHTSA2022-03-30
Manufacturer's number22-NA-056
Manufacturer's date2022-03-11
NHTSA componentENGINE AND ENGINE COOLING; EQUIPMENT; ELECTRICAL SYSTEM

NHTSA's summary

This service bulletin provides a repair procedure to correct a customer concern of a MIL Illuminated with DTC P0172, P06DE and/or P0521 Set.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Engine, Equipment and accessories

Trouble codes named

P0172, P0521, P06DE

Vehicles listed
BUICK ENVISION2020
BUICK REGAL2020
CHEVROLET CAMARO2020, 2021, 2022
CHEVROLET EQUINOX2020
CHEVROLET MALIBU2020, 2021, 2022
GMC TERRAIN2020, 2021

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
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