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Service bulletin 3100479

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 id10115967
Published by NHTSA2017-08-25
Manufacturer's number3100479
Manufacturer's date2017-07-31
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION

NHTSA's summary

According to the notification received by Daimler Trucks; Certain motorhomes may experience a condition where the transmission will not upshift when at full throttle because of an incorrect shift speed calibration. Allison distributors will correct the calibration setting. The vehicles involved are specific Freightliner Custom Chassis motorhome chassis manufactured July 18, 2013, through October 19, 2015, equipped with 2500MH Allison Transmissions.

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

Transmission and driveline, Automatic transmission

Vehicles listed
FOREST RIVER FOREST RIVER

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