Maserati bulletin MAS005254 MTB 26-14
What it saysGranTurismo and GranCabrio - Unexpected Alarm Activation . NHTSA’s full summary ↓
Maserati filed this with NHTSA as a manufacturer communication dated Sep 10, 2026, received Sep 18, 2026. It names 22 model years (2016–2027). 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 bulletin for your model 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 communicationGranTurismo and GranCabrio - Unexpected Alarm Activation . In case of unexpected alarm activation, proceed with software updates to the BCM ECU, with Software Number F188 670363089 ROW. In order to obtain the compatibility of this SW and to complete all the necessary steps and procedures with MDEVO, it is mandatory to open a BOL as Support Request. After updating the software to the version mentioned above, perform the BCM procedure 'BCM Initialization.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| MAS005254 MTB 26-14 | Other | Sep 10, 2026 | 11037376 | PDF, 191 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: 2027 Maserati Grancabrio; 2027 Maserati Grancabrio Folgore; 2020 Maserati Granturismo; 2021 Maserati Granturismo; 2022 Maserati Granturismo; 2023 Maserati Granturismo; 2027 Maserati Granturismo; 2027 Maserati Granturismo Folgore; 2024 Maserati Nuova Grancabrio; 2025 Maserati Nuova Grancabrio; 2024 Maserati Nuova Granturismo; 2025 Maserati Nuova Granturismo.
A 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 one of these models
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.
What owners reported
Source: NHTSA complaint databaseOwners of the 10 model years this bulletin names have filed 3 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.
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 MAS005254 MTB 26-14 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 MAS005254 MTB 26-14 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 MAS005254 MTB 26-14 cover?
The manufacturer filed it against 22 model years: 2024 Maserati GranTurismo, 2019 Maserati GranTurismo, 2018 Maserati GranTurismo, 2017 Maserati GranTurismo, 2016 Maserati GranTurismo, 2026 Maserati Grancabrio and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.