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Service bulletins for the 2024 Maserati MC20

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.

96 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
MAS004460 MTB 25-092025-03-19. Other. ENGINE. This Technical bulletin serves as a guide and provides additional diagnostic info regarding MC20 engine noise characteristics during tip-in/tip-out maneuvers with the accelerator pedal.
MAS004578 MTB 25-052025-02-28. Other. UNKNOWN OR OTHER. This Technical bulletin serves as a guide and provides info for certain anomalies reported in by customers on seat linings that can be mistakenly addressed as a product defect.
MAS004558 DS 25-032025-02-18. Other. UNKNOWN OR OTHER. This 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.
MAS004557 RU 25-032025-02-03. Service campaign. UNKNOWN OR OTHER. Certain Maserati MC20 Cielo (M240) MY23 MY24 MY25 listed in MODISCS+ are involved in a Rapid Update concerning the LSMD (Latch Smart Module Driver) and LSMP (Latch Smart Module Passenger) software updates. This update is needed to avoid a potential incorrect movement of the windows during the door opening phase. As a consequence, in the very few cases where the short drop failure happened, a deformation or damage of the molding on the A-pillar took place
MAS004438 MTB 25-032025-02-03. Other. ENGINE; UNKNOWN OR OTHER. This Technical information bulletin serves as a diagnostic guide for managing engine oil leaks and instructing related repairs.
MAS004472 DS 25-012025-01-21. Other. UNKNOWN OR OTHER. This Diagnostic Sheet serves as a guide and provides additional diagnostic info for possible anomalies of parking sensors.
MAS004045 RU 25-012025-01-21. Service campaign. UNKNOWN OR OTHER. Certain Maserati MC20 and MC20 Cielo (M240) MY22 MY23 MY24 listed in MODISCS+ are involved in a Rapid Update to verify the correct gluing and, if necessary, restore the carpet that covers the door area. The upholstery may have been assembled in a way that caused the double-sided adhesive to improperly bond with the fabric portion of the carpet, potentially leading to detachment. The procedure involves carefully inspecting the area, and if any sections are found to be insufficiently adhered, applying a patch using a specially designed tape prepared for this purpose.
MAS004426 MCL 24-562025-01-02. Other. UNKNOWN OR OTHER. This communication is intended to provide important information on the serviceability of the Differential Cover O-rings installed on Maserati MC20 coupè and Cielo versions. In case of oil leakage from the Differential Cover, it is now possible to replace only the O-rings instead of the complete gearbox.
MAS004490 MTB 24-302024-12-19. Other. UNKNOWN OR OTHER; ENGINE. his Technical bulletin serves as a guideline and outlines requirements when considering a possible engine replacement on Maserati vehicles. Please refer to Bulletin “MAS004175 PNP 24-01 Light Engine - Long Block Repairs Under Warranty” for further information.
MAS004440 MTB 24-372024-12-19. Other. UNKNOWN OR OTHER; AIR BAGS. his Technical bulletin serves as a guide and provides additional diagnostic info for possible DTCs 81151B and 81141B stored in the ORC. MC20 – DTC 81151B, 81141B Right/Left curtain airbag - circuit resistance over the threshold.
MAS004490 MTB 24-302024-12-19. Other. ENGINE. his Technical bulletin serves as a guideline and outlines requirements when considering a possible engine replacement on Maserati vehicles. Please refer to Bulletin “MAS004175 PNP 24-01 Light Engine - Long Block Repairs Under Warranty” for further information.
MAS004448 MTB 24-362024-11-30. Other. UNKNOWN OR OTHER; SEATS. This bulletin provides additional info for possible front seat movement issues for front seat movement blocked.
MAS004439 BOL 24-322024-11-20. Other. UNKNOWN OR OTHER. This Diagnostic Sheet serves as a guide and provides additional diagnostic info for Power Window Auto-Short Drop Anomalies on MC20 Cielo.
MAS004465 MCL 24-522024-11-20. Other. UNKNOWN OR OTHER. To enhance customer satisfaction, a new policy requires testing of the 12V battery at the time of a new vehicle sale. The “MASERATI” E-XTEQ Maximus must be used to perform a load test on the 12V battery within 48 hours before the vehicle's delivery to the final customer.
MAS004464 MCL 24-512024-11-20. Other. UNKNOWN OR OTHER. As an essential component in the electrical system in Maserati vehicles, the battery plays a crucial role in ensuring reliable performance and safety. To help maintain battery peak condition, and ensure optimal performance, this bulletin covers important warranty policies, and guidelines for testing, maintenance, and diagnosis of batteries using the new E-XTEQ MAXIMUS battery charger/tester. Please refer to the most recently published “BOL Policy” and “Prior Approval Components List” to verify if a BOL Report is required for battery replacement.
MAS004434 MCL 24-532024-11-20. Other. UNKNOWN OR OTHER. The Rapid Updates (Campaigns) in the list below will be closed starting from November 18, 2024. Claims received after this date will no longer be accepted. Effective from the publication date of this document, the Mandatory Flag will be removed for all campaigns listed, allowing for easier management as we approach the closure period. Campaign Number Campaign Description Closure Date 514 MC20 MY22 Radiator pipe coolant leakage 11.18.2024 550 M157 V6 Engine Harness Position Check 11.18.2024 574 MC20 Interior Handle Replacement 11.18.2024 575 M182 Air suspension Leak Check 11.18.2024 590 MC20 Door Latch Noise 11.18.2024 596 MC20 Cielo PTCM SW Update 11.18.2024 618 M182 - Radio R1H FOTA SW UPDATE (S27.28) 11.18.2024 646 MC20 Side Mirror Check 11.18.2024 649 MC20 Radiator pipe coolant leakage (ext 514) 11.18.2024 655 MC20 AC pipe connection check 11.18.202
MAS004387 MCL 24-482024-11-04. Other. UNKNOWN OR OTHER. MC20 Gearbox BOL Process Update. Support for the MC20 gearbox will now be managed in close collaboration with the supplier of the components listed on the following page. This partnership allows us to quickly identify potential issues, reduce diagnostic times, and provide top-tier assistance and expertise to resolve cases efficiently.
MAS004419 MTB 24-352024-10-31. Other. UNKNOWN OR OTHER; SUSPENSION. This technical bulletin provides guidance and additional information on normal shock absorber operations that are often mistakenly identified as defective. It establishes criteria for inspecting and diagnosing shock absorbers for potential leakage to help prevent the unnecessary replacement of non-defective components
MAS004372 RU 24-302024-10-01. Service campaign. SUSPENSION; UNKNOWN OR OTHER. Certain Maserati MC20 and MC20 Cielo (M240) MY23 MY24 MY25 listed in MODISCS+ are involved in a Rapid Update to check the correct tightening torque of the front suspension fasteners.
MAS003638 BOL 24-272024-10-01. Other. UNKNOWN OR OTHER; STRUCTURE:BODY. This Technical bulletin serves as a guide and provides additional diagnostic info for possible BOTH SIDE DOOR anomalies (i.e. High effort in the opening/closing of the doors, noise on uneven roads, etc.)
MAS004334 MCL 24-422024-08-26. Other. UNKNOWN OR OTHER. his Bulletin provides new information regarding the Maserati Tutorship Process for Harman R1 ETM components.
MAS004223 RU 24-232024-08-26. Service campaign. UNKNOWN OR OTHER; ELECTRICAL SYSTEM; ENGINE. Certain Maserati MC20 (M240) MC20 Cielo (M241) MY22 MY23 MY24 listed in MODISCS+ are involved in a Rapid Update to update the ECM (Engine Control Module) software. This new software enhances the sleep mode of the exhaust pipe flap valve actuator, preventing loss of communication with the active exhaust valve. In rare cases, the engine could enter limp mode, and the MIL light can only be turned off after three key cycles.
MAS004283 MCL 24-382024-08-01. Other. UNKNOWN OR OTHER. MDEVO Release 9.8.1 new features • New login interface • Active diagnosis introduction for Go direct function (only for BEV vehicles) • MY25 version for all vehicles, Hard Reset function (Active Diagnosis), specs update, general improvements.
MAS004111 MTB 24-252024-06-18. Other. UNKNOWN OR OTHER. This Technical bulletin has been released to inform the dealers about feature/content modifications of Maserati vehicles and to ensure that such changes are not mistakenly interpreted as anomalies or inconsistencies in the expected vehicle configuration.
MAS003820 MTB 24-242024-06-03. Other. AIR BAGS; ELECTRICAL SYSTEM. This Technical bulletin serves as a guide and provides additional diagnostic info for possible DTCs 81151B and 81141B stored in the ORC. BOL required. Airbag warning light on and storage in ORC of DTC 81151B Right curtain airbag - circuit resistance over the threshold or 81141B Left curtain airbag - circuit resistance over the threshold.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.