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Service bulletin IS 373

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 id10218840
Published by NHTSA2022-08-29
Manufacturer's numberIS 373
Manufacturer's date2022-06-01
NHTSA componentSEATS; SUSPENSION

NHTSA's summary

P2 Carrier Bushing Removal and Installation.

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, Suspension

Vehicles listed
ALLISON 1000 SERIES TRANSMISSION
ALLISON 2000 SERIES TRANSMISSION

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