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Service bulletin S19ZZ

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 id10156492
Published by NHTSA2019-04-05
Manufacturer's numberS19ZZ
Manufacturer's date2019-03-27
NHTSA componentSEATS

NHTSA's summary

HSM NexGen Seat Track LH Missing Bolt: Overview: Blue Bird and HSM Quality/Engineering teams have determined that certain NexGen Left-Hand Track Mounted seats shipped from October 1, 2017 to February 1, 2019 have a missing bolt in the assembly. HSM testing has shown this issue is not a compliance concern and examination shows it does not pose a safety concern. HSM has developed a Voluntary Technical Service Bulletin (SB18-0018) for the installation of the missing bolt. HSM will provide parts at no cost and cover limited labor repayment for installation of the repair. Affected Units: This service bulletin includes 2019 through 2020 Blue Bird Vision School Buses manufactured from December 8, 2017 through January 28, 2019. A separate printout will be provided listing all buses in your territory that are affected by this service bulletin. Service Bulletin S19ZZ will be mailed to all owners on record. Be sure to review your list and advise of any incorrect owner names and/or addresses. On the subject buses, the Dealer is to execute the seat repair in accordance with the service repair procedure SB18-0018 or you may elect and have the option to perform this Service Bulletin yourself or have a qualified repair facility convenient to you perform this work. A qualified technician must perform work required under this bulletin. Repair Parts: Reference attached HSM Service Repair Procedure SB18-0018.

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

Seats

Vehicles listed
BLUE BIRD ALL AMERICAN SCHOOL BUS2020

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