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Service bulletin MAS004757 DS 25-16

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 id11018753
Published by NHTSA2025-06-02
Manufacturer's numberMAS004757 DS 25-16
Manufacturer's date2025-05-30
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

This Diagnostic Sheet serves as a guide and provides a diagnostic path to help determine the root cause of certain HVAC concerns.

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 GRANCABRIO2024
MASERATI GRANTURISMO2008
MASERATI MC202021
MASERATI MC202022, 2023, 2024, 2025
MASERATI MC20 CIELO2024, 2025 (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.