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Service bulletin BS4629E

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 id10164040
Published by NHTSA2019-08-19
Manufacturer's numberBS4629E
Manufacturer's date2019-07-31
NHTSA componentENGINE; FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY; FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY

NHTSA's summary

Possibility of fuel leakage

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

Engine, Fuel system, Fuel tank

Vehicles listed
NOVA BUS LFS2019

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