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Service bulletin SC-21-058

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 id11013555
Published by NHTSA2025-02-04
Manufacturer's numberSC-21-058
Manufacturer's date2021-07-15
Campaign id or software versionSC-21-058
NHTSA componentSTRUCTURE:BODY

NHTSA's summary

Transit bus repair to the rear mud flaps to eliminate a gap to reduce road grime from entering the rear trunk of the vehicle.

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

Body and frame

Vehicles listed
PROTERRA ZX52019 to 2021

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