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Service bulletin MAS002635

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 id10198488
Published by NHTSA2021-06-28
Manufacturer's numberMAS002635
Manufacturer's date2021-05-12
NHTSA componentVISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; VISIBILITY

NHTSA's summary

Service Campaign # 420 for Sedans with incorrect amount of Refrigerant Gas.

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

Glass, wipers and mirrors, Heating and air conditioning

Vehicles listed
MASERATI GHIBLI2020, 2021

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

Recalls for the same vehicles and component
20250782025-02-17. Visual System

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
MAS004828 MTB 25-282025-08-01. Other. his bulletin provides technical guidance for addressing complaints related to windshield wiper operation at maximum speed only. TECHDOCS SECTION: 08.00-1 – External Vehicle Services. Affected Models • Quattroporte (M156) (All MY) • Ghibli (M157) (All MY) • Levante (M161) (All MY)
MAS0028422022-01-24. Service bulletin. Service Campaign # 430 - For Subroof Water Infilteration.
MAS0025282021-03-15. Service bulletin. Service Campaign # 409 - HVAC software update to AC system that could stop caooling after 10 minutes at idle in area with high ambient temepratures and high humidity.
MAS0022222020-09-14. Service bulletin. Diagnostic Procedure - Spontaneous wiper activation.