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Service bulletin MAS004735 MCL 25-28

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 id11018746
Published by NHTSA2025-06-02
Manufacturer's numberMAS004735 MCL 25-28
Manufacturer's date2025-05-26
Campaign id or software version411,636
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

Stop Field Action. The Rapid Updates (Campaigns) in the list below will be closed starting from May 26, 2025. Claims received after this date will no longer be accepted. Effective from the publication date of this document, the Mandatory Flag will be removed for all campaigns listed, allowing for easier management as we approach the closure period. Campaigns included are 411 and 636

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.

Vehicles listed
MASERATI GHIBLI2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024
MASERATI QUATTROPORTE2004
MASERATI QUATTROPORTE2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024
MASERATI QUATTROPORTE GTS2014 (the catalog's model; the bulletin names a series or trim of it)
MASERATI QUATTROPORTES2005 (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.