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Service bulletin SC-22-001

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 id11011007
Published by NHTSA2024-12-03
Manufacturer's numberSC-22-001
Manufacturer's date2023-02-28
Campaign id or software versionSC-22-001
NHTSA componentSTEERING

NHTSA's summary

Service Bulletin Instructions for a torque verification due to a supplier issue on the steering gearbox housing.

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

Steering

Vehicles listed
PROTERRA CATALYST2021
PROTERRA ZX52021

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