Maserati bulletin MAS004558 DS 25-03
What it saysThis Diagnostic Sheet serves as a guide and provides additional diagnostic info for possible MC20 gearbox anomalies and possible lower-level repair now available. NHTSA’s full summary ↓
Maserati filed this with NHTSA as a manufacturer communication dated Feb 4, 2025, received Feb 18, 2025. It names 2 model years (2023–2024). 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.
Get the next Maserati MC20 bulletin by email Weekly, only when something new is filed. Nothing else; one-click unsubscribe.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThis Diagnostic Sheet serves as a guide and provides additional diagnostic info for possible MC20 gearbox anomalies and possible lower-level repair now available. Maserati also introduced a new Procedure available through the MDEVO called “DCTM Service Fast Learn”. This new routine could be used to address issues related to sticky valve and performs a purge cycle and a valve readaptation to address pressure related issues.
Trouble codes it names: P0746 P0747 all 2 read from the document itself; NHTSA’s summary names none
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| MAS004558 DS 25-03 | Other | Feb 4, 2025 | 11014333 | PDF, 239 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 themA vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
Email me new Maserati bulletins for the MC20
A weekly email, sent only in a week when Maserati files something new with NHTSA for the model you pick — service bulletins, campaigns, warranty extensions, over-the-air notices, every model year. Nothing else is sent; one-click unsubscribe in every message. Separate from recall alerts.
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 MAS004558 DS 25-03 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 MAS004558 DS 25-03 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 MAS004558 DS 25-03 cover?
The manufacturer filed it against 2 model years: 2024 Maserati MC20, 2023 Maserati MC20. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.