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Service bulletin SP22-307

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 id10219027
Published by NHTSA2022-09-01
Manufacturer's numberSP22-307
Manufacturer's date2022-08-12
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

Extended Life Coolant Decal installation procedure.

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

Vehicles listed
PREVOST X3 COM2021
PREVOST X3-45 COMMUTER2021

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