Maserati bulletin MAS005092 DS 26-04
What it saysGrecale MHEV – Turbocharger Inspection Procedure for Whistling Noise. NHTSA’s full summary ↓
Maserati filed this with NHTSA as a manufacturer communication dated Mar 25, 2026, received Apr 1, 2026, about the fuel/propulsion system. It names 5 model years (2022–2026). A manufacturer communication is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationGrecale MHEV – Turbocharger Inspection Procedure for Whistling Noise. This bulletin provides guidance to the service network regarding the checks to be performed on the turbocharger when the only symptom reported is a whistling noise during acceleration. This communication originates from several cases where the noise was not caused by the turbocharger itself, but by the gasket located between the turbocharger and the cylinder head.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| MAS005092 DS 26-04 | Other | Mar 25, 2026 | 11030450 | PDF, 233 KB |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themAlso filed against model years this site has no page for: 2022 Maserati Grecale.
A vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 4 model years this bulletin names have filed 10 complaints with NHTSA since 2015.
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the fuel/propulsion system
Source: same model, same component group9 other manufacturer communications filed against the Maserati Grecale under the same component group (fuel/propulsion system), newest first. The eight newest are listed; the rest are on the Maserati list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| RAPID UPDATE 833 | Service campaign | Jul 24, 2026 | Certain Maserati vehicles listed in MODISCS+ are involved in a Rapid Update to check and, if necessary, restore the correct position of the… |
| Page 1 of 2 TECHNICAL SER | Other | Jun 24, 2026 | Grecale MHEV – Updated Transmission Removal Procedure for Fuel System Repairs For Grecale Hybrid (MHEV) vehicles, repairs involving the high… |
| MAS004816_A MTB 26-04 | Other | Apr 15, 2026 | This bulletin outlines the refinishing procedure for restoring the black coating on exhaust tips affected by peeling or flaking paint. This… |
| MAS004912 DS 25-33 | Other | Oct 31, 2025 | This bulletin provides updated diagnostic and repair instructions for identifying and addressing corrosion-related concerns in the low-pres… |
| MAS004819 DS 25-22 | Other | Jul 30, 2025 | This bulletin provides diagnostic and repair instructions for addressing corrosion-related issues in the low-pressure fuel pump on Grecale… |
| MAS004816 MTB 25-30 | Service bulletin | Jul 30, 2025 | This bulletin outlines the refinishing procedure for restoring the black coating on exhaust tips affected by peeling or flaking paint. This… |
| CUSTOMER SERVICE NOTIFICATION 786 | Service campaign | Apr 30, 2025 | Certain Maserati Grecale BEV (M182) MY25 listed in MODISCS+ are involved in a Customer Service Notification (CSN) to update the BPCM… |
| MAS004109 | Other | Apr 19, 2025 | The purpose of this document is to provide diagnostic information regarding anomalies of the 48V battery. MODELS: M157, M161, M182. MHEV veh… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Maserati, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Maserati MAS005092 DS 26-04 a recall?
No. A manufacturer communication is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the MAS005092 DS 26-04 repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way.
Which vehicles does MAS005092 DS 26-04 cover?
The manufacturer filed it against 5 model years: 2026 Maserati Grecale, 2025 Maserati Grecale, 2024 Maserati Grecale, 2023 Maserati Grecale, 2022 Maserati Grecale. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.