# 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.

- Type: Service bulletin
- NHTSA id: 10198488
- Published by NHTSA: 2021\-06\-28
- Manufacturer's number: MAS002635
- Manufacturer's date: 2021\-05\-12
- NHTSA component: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; VISIBILITY

## NHTSA's summary

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

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10198488-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10198488-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Glass, wipers and mirrors, Heating and air conditioning

## Vehicles listed

- 2020 to 2021 MASERATI GHIBLI

## Recalls for the same vehicles and component

- [2025078](/recalls/tc/2025078.md), 2025-02-17: Visual System

## Other bulletins for the same vehicles and component

- [MAS004828 MTB 25\-28](/bulletins/11021164.md), 2025-08-01, Other: UNKNOWN OR OTHER; VISIBILITY/WIPER. 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 \(M161\) \(All MY\)
- [MAS002842](/bulletins/10206679.md), 2022-01-24, Service bulletin: EQUIPMENT; VISIBILITY:SUN/MOON ROOF ASSEMBLY. Service Campaign \# 430 \- For Subroof Water Infilteration.
- [MAS002528](/bulletins/10188706.md), 2021-03-15, Service bulletin: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\):SOFTWARE. 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.
- [MAS002222](/bulletins/10179664.md), 2020-09-14, Service bulletin: EQUIPMENT; PARKING BRAKE; VISIBILITY; EQUIPMENT ADAPTIVE/MOBILITY. Diagnostic Procedure \- Spontaneous wiper activation.

JSON: [/v1/bulletins/10198488](/v1/bulletins/10198488)

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