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Service bulletins for the 2021 Maserati Quattroporte

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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
MAS0039902024-04-01. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Technical Information .
MAS0036182024-02-20. Service bulletin. SEATS. Technical Information - On the malfunctioning front seat headrest that can be loose and produce an abnormal sound.
MAS0033922024-01-22. Service bulletin. LATCHES/LOCKS/LINKAGES:DOORS:LATCH. Diagnostic Sheet for for certain models regarding difficulty with opening the doors
MAS0035312023-06-26. Service bulletin. STRUCTURE:BODY:DOOR. Technical Information - to provide guidance on how to evaluate concerns regarding wrinkles in the leather of door panel arm rests.
MAS0030452023-06-26. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). Technical Information - Diagnostic guidance to trouble shooting DTC C12900 & 400700 if fault codes are stored in the ECM for iignition control unit.
MAS0031692022-08-22. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE; UNKNOWN OR OTHER. Service Campaign 516 - concerning the ECM Software update to improve the performance of the engine calibration.
MAS0031192022-08-22. Service bulletin. SERVICE BRAKES, HYDRAULIC; PARKING BRAKE; FUEL SYSTEM, GASOLINE:STORAGE:EVAPORATIVE EMISSIONS:HOSES/VALVES/SENSORS. Service Campaign 512 concerning a potential loose connection of fuel vpor pressure and potential cross-connection between the 3-way and the 2-way purgre valve.
MAS0031122022-08-01. Service bulletin. EQUIPMENT. Service Campaign 506 - Customer protection action wave 2 concerningchecks to be performed to prevent water filteration from grommet and strker scre cover missing.
MAS0031042022-08-01. Service bulletin. BACK OVER PREVENTION; ELECTRICAL SYSTEM. Service Campaign 505 - Customer protection action concerning targeted checks to be performed to prevent wind noise, air vent detachments, brake pedal switch failure inspection, rattling noise from the silencer and oil leak from differential.
MAS003050A2022-08-01. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Service Campaign 498 - Updated concerning four target checks (side ventilation oulets, B-pillars covering, postioning of red trunk release cord, seat greasing) to be performed on all cars not yet delivered to the final customer.
MAS0030502022-08-01. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Service Campaign 498 - Concerning four target checks (side ventilation oulets, B-pillars covering, postioning of red trunk release cord, seat greasing) to be performed on all cars not yet delivered to the final customer.
MAS0029912022-08-01. Service bulletin. ELECTRICAL SYSTEM. Service Campign 475 - Software update 10 17.101 of the entertainment module (ETM) R1
MAS0029692022-06-13. Service bulletin. ELECTRICAL SYSTEM. Diagnostic procedure tp provide diagnostic for the DTCs related to the blow-by pressure sensor
MAS0029692022-05-31. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); ELECTRICAL SYSTEM. Diagnostic Sheet - To Provide Diagnostic Guidance for DTC's Related To The Blow-By Pressure Sensor.
MAS0028592022-02-14. Service bulletin. UNKNOWN OR OTHER; STRUCTURE:INTERIOR PANELS:SUN VISOR. Technical Information - Help diagnose possible malfunctions of the courtsey lights on the Sun Visor.
MAS0028562022-02-14. Service bulletin. WHEELS. Circular Letter - Wheels rotation procedure for Maserati vehicles in stock.
MAS0028672022-01-24. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE. Servive Campaign # 451 - To update the ECM Software
MAS0028422022-01-24. Service bulletin. EQUIPMENT; VISIBILITY:SUN/MOON ROOF ASSEMBLY. Service Campaign # 430 - For Subroof Water Infilteration.
MAS0028322021-11-15. Service bulletin. ENGINE AND ENGINE COOLING. Engine Warning Light On.
MAS0027622021-11-08. Service bulletin. SUSPENSION. Technical Information -Shock Absorber Leaks.
MAS00699 A2021-11-08. Service bulletin. ELECTRICAL SYSTEM. Service Campaign # 426 - FOTA TBM software update with latest version 4.33f
MAS0027462021-11-08. Service bulletin. STRUCTURE:BODY:DOOR. Technical Information - Door Panel Damage when removing the door panel.
MAS0007502021-10-25. Service bulletin. PARKING BRAKE. Mechanical adjustment and electronic adjustment of the parking brake.
MASB20002272021-10-25. Service bulletin. POWER TRAIN. Gearshift paddle retrofit.
MAS0027062021-08-02. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM; EQUIPMENT. Technical Tips - Maserati Intelligent Assistant factory reset procedure for Model Tear 21 and later vehicles.

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