WenmarOpen by Wenmar Pro

Service bulletin MAS002954

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10212644
Published by NHTSA2022-05-31
Manufacturer's numberMAS002954
Manufacturer's date2022-02-18
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION:INTERNAL:GEARS

NHTSA's summary

Technical Information - Guidelines On How To Manage MC20 Gearbox Related Anomalies.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Transmission and driveline, Automatic transmission

Vehicles listed
MASERATI MC202022

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
MAS0029702022-05-31. Service bulletin. Service Campaign # 468 - To Update the DCTM Adoptive Parameters To Correct the Values To Prevent Erroneous Lighting Of The Gearbox And/Or Poor Performance Warning Lights In The Instrument Cluster.