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Other MAS004931 MTB 25-38

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)
TypeOther
NHTSA id11024685
Published by NHTSA2025-10-31
Manufacturer's numberMAS004931 MTB 25-38
Manufacturer's date2025-10-30
NHTSA componentSUSPENSION; UNKNOWN OR OTHER

NHTSA's summary

This bulletin provides guidance to the authorized service network regarding a specific repair procedure applicable to the front axle transfer case. The intervention is intended to address a knocking noise that may occur during lowspeed directional changes (Drive to Reverse and vice versa). The procedure outlined below aims to eliminate the noise by reconditioning the flange-to-shaft interface and ensuring correct component alignment and lubrication.

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

Suspension

Vehicles listed
MASERATI GRANCABRIO2024, 2025
MASERATI GRANCABRIO FOLGORE2025 (the catalog's model; the bulletin names a series or trim of it)
MASERATI GRANTURISMO2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
MASERATI GRANTURISMO FOLGORE2025 (the catalog's model; the bulletin names a series or trim of it)
MASERATI GRECALE2022
MASERATI GRECALE2023, 2024, 2025
MASERATI GRECALE FOLGORE2025 (the catalog's model; the bulletin names a series or trim of it)
MASERATI NUOVA GRANCABRIO2024 to 2025
MASERATI NUOVA GRANTURISMO2024 to 2025

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

Recalls for the same vehicles and component
13V1960002013-05-13. SUSPENSION:REAR
20112882011-08-08. Suspension
20090162009-01-19. Suspension
09V0010002009-01-06. SUSPENSION:FRONT:CONTROL ARM:LOWER BALL JOINT

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
MAS004990 MTB 25-462025-12-24. Other. This bulletin provides updated information regarding the serviceability of the transfer case flange kit for Grecale, GranTurismo, and GranCabrio.
MAS004974 DS 25-372025-12-24. Other. Rear Differential Oil Leakage This Diagnostic Sheet serves as a guide and provides additional diagnostic info related to rear differential unit seals on half shafts
MAS004886 DS 25-312025-10-15. Other. This Diagnostic Sheet provides step-by-step instructions to help diagnose and report issues with the adaptive suspension system on Maserati Grecale vehicles equipped with Skyhook or Air Suspension. It guides technicians through specific tests to confirm whether the suspension settings are functioning correctly and how to collect data for further support
MAS004834 DS 25-272025-08-18. Other. This document outlines the correct diagnostic and evaluation procedure when oil traces or leakage are observed on front or rear shock absorbers. It aims to help technicians distinguish between acceptable oil sweating and genuine component leakage requiring corrective action. MODELS INVOLVED: ALL (All MY).
MAS004693 MCL 25-222025-04-24. Service campaign. Rapid Update 760 TEMPORARY SUSPENSION Effective Immediately: Rapid Update 760 is suspended until further notice due to the potential occurrence of DTC P061B. This diagnostic trouble code may appear when torque command limits are exceeded, triggering the “Turtle Mode” warning lamp. This results in limited vehicle performance, which can be easily restored with a key cycle (Key OFF – Key ON).
MAS004690 DS 25-122025-04-24. Other. This Technical bulletin serves as a guide and provides additional diagnostic info for possible Air suspension issues on Grecale equipped with an Air Suspension System. ATTENTION! This bulletin supersedes MAS004672 DS 25-08 released on April 4, 2025. This bulletin has been updated with new diagnostic info. Please discard/remove all copies of the previous bulletin.
MAS004673 DS 25-092025-04-24. Other. GranTurismo, GranCabrio: Air Suspension System Diagnosis This Technical bulletin serves as a guide and provides additional diagnostic info for possible Air suspension issues on GranTurismo and GranCabrio equipped with Air Suspension System. All Air Suspension concerns require a BOL to be opened with the included checklist attached (last page). ATTENTION! This bulletin supersedes MAS004471 RU 25-09 released on December 17, 2024. This bulletin has been updated with new diagnostic info. Please discard/remove all copies of the previous
MAS004672 DS 25-082025-04-24. Other. This Technical bulletin serves as a guide and provides additional diagnostic info for possible Air suspension issues on Grecale equipped with Air Suspension System. ATTENTION! This bulletin supersedes MAS004471 RU 25-09 released on December 17, 2024. This bulletin has been updated with new diagnostic info. Please discard/remove all copies of the previous
MAS004527 MCL 25-042025-02-18. Service campaign. Maserati Granturismo – Air Springs Replacement Important note on spare parts. As recently communicated in Rapid Update #658 669 684 712 regarding the need to replace the front shock absorbers on the new GranTurismo vehicles, we would like to remind you that, starting from last July 2024, the components available from our network are identified, for internal supplier reasons, with two different series of part numbers.
MAS004471 MTB 24-392025-01-02. Other. This Technical bulletin serves as a guide and provides additional diagnostic info for possible Air suspension issues on GranTurismo and some Grecale equipped with Air Suspension System.