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Service bulletin 22-NA-226

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 id10227272
Published by NHTSA2022-12-06
Manufacturer's number22-NA-226
Manufacturer's date2022-11-14
NHTSA componentENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM

NHTSA's summary

This informational bulletin provides information on Information on 6500XD/7500XD Medium Duty (LCF) with the 6.7L Cummins Diesel Engine.

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

Vehicles listed
CHEVROLET 6500XD2018
CHEVROLET 6500XD2019
CHEVROLET 6500XD2020, 2021, 2022
CHEVROLET 7500XD2021, 2022

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

Recalls for the same vehicles and component
24V1570002024-02-28. FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: CAMERA; ELECTRICAL SYSTEM
20V5540002020-09-11. ELECTRICAL SYSTEM:STARTER ASSEMBLY
20V1950002020-04-03. ELECTRICAL SYSTEM:WIRING

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
22-NA-2262024-02-14. Service bulletin. This informational bulletin provides information on Information on 6500XD/7500XD Medium Duty (LCF) with the 6.7L Cummins Diesel Engine.
22-NA-2022022-11-03. Service bulletin. This service bulletin provides information on the Data Link Connector.
18NA1502022-05-31. Service bulletin. This informational bulletin provides information on 6.6L Duramax Possible Oil Leak Path Information.
20NA1322021-05-03. Service bulletin. This warranty administration bulletin provides policy information on the requirements for battery testing and warranty replacements.