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Service bulletin SB-51

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 id10199112
Published by NHTSA2021-07-12
Manufacturer's numberSB-51
Manufacturer's date2016-01-20
NHTSA componentEQUIPMENT:RECREATIONAL VEHICLE/TRAILER:120/240 VAC ELECTRICAL SYSTEM:INVERTER; HYBRID PROPULSION SYSTEM: INVERTER

NHTSA's summary

Some 2016 Allegro Bus Motorhome could possibly have an inverter installed that was manufactured incorrectly.

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

Equipment and accessories, Hybrid and electric drive

Vehicles listed
TIFFIN ALLEGRO2016

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