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Service bulletin 1STTSB1856282021

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 id10199201
Published by NHTSA2021-07-19
Manufacturer's number1STTSB1856282021
Manufacturer's date2021-06-28
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

AGM battery system enhancements to verify the Magnum Inverter Charger MMS1012-G has the proper battery charge settings, fuses, and wiring for AGM batteries.

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

Electrical system

Vehicles listed
AIRSTREAM ATLAS2020 to 2021
AIRSTREAM INTERSTATE NINETEEN2020 to 2021

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