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Service bulletin 1STtsb1866282021

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 id10199202
Published by NHTSA2021-07-19
Manufacturer's number1STtsb1866282021
Manufacturer's date2021-06-28
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

Airstream has discovered that early 2021 Model Year units were shipped with Magnum MMS1012-G Inverter/Charger's designed for AGM batteries, instead of the proper ā€œLā€ series inverters designed for use with lithium batteries. While the incorrect inverters are not harmful to the lithium batteries, the affected vehicles would not be getting maximum charging to the batteries. This procedure is set up to make sure the proper MMS1012-G ā€œLā€ Series inverters are installed, and if not, it outlines the process for swapping out the inverter.

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 ATLAS2021
AIRSTREAM INTERSTATE2021
AIRSTREAM INTERSTATE NINETEEN2021

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