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Service bulletin IS-20925A

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 id10199002
Published by NHTSA2021-07-07
Manufacturer's numberIS-20925A
Manufacturer's date2021-06-15
NHTSA componentPOWER TRAIN

NHTSA's summary

CENTRAL HVAC MERV FILTERS INSTALLATION REVA

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

Transmission and driveline

Vehicles listed
PREVOST H31999 to 2013
PREVOST H32019 to 2020
PREVOST H3 VIP2003 to 2010
PREVOST H3-402007 to 2013
PREVOST H3-412003 to 2019
PREVOST H3-412021 to 2022
PREVOST H3-452003 to 2022
PREVOST H3-45 VIP2006 to 2022
PREVOST H3-45VIP2004 to 2005
PREVOST H3-VIP2009 to 2019
PREVOST H452006
PREVOST X32006 to 2020
PREVOST X3 COMMUTER2018 to 2019
PREVOST X3-452002 to 2022
PREVOST X3-45 COACH2011 to 2016
PREVOST X3-45 COMMUTER2018 to 2019
PREVOST X3-45 COMMUTER2021 to 2022
PREVOST X3-45 LE MIRAGE COACH2013
PREVOST X3-45 VIP2008 to 2022
PREVOST X3-VIP2012 to 2016
PREVOST X3VIP2014 to 2019

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