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Service bulletin 21-FL-001H

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 id10186814
Published by NHTSA2021-02-06
Manufacturer's number21-FL-001H
Manufacturer's date2021-01-05
NHTSA componentFUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY

NHTSA's summary

This bulletin describes the procedure to evaluate the condition of the Tucson fuel cell stack.

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

Fuel system, Fuel tank

Vehicles listed
HYUNDAI TUCSON FUEL CELL2015, 2016, 2017 (the catalog's model; the bulletin names a series or trim of it)

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

Other bulletins for the same vehicles and component
20-FL-009H2020-11-06. Service bulletin. This bulletin describes the procedure to assemble the Portable Hydrogen Vent Stack assembly in order to properly vent the vehicle's fuel cell stack.