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Service bulletin FC-23-140

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 id11011362
Published by NHTSA2024-12-05
Manufacturer's numberFC-23-140
Manufacturer's date2023-11-21
Campaign id or software versionFC-23-140
NHTSA componentPOWER TRAIN; ELECTRICAL SYSTEM

NHTSA's summary

Service bulletin fleet check for the transit buses due to potential missing split blocks on DuoPower Vehicles.

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, Transmission and driveline

Vehicles listed
PROTERRA CATALYST2019
PROTERRA ZX52020 to 2023

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