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Service bulletin 400531

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 id10118741
Published by NHTSA2017-10-12
Manufacturer's number400531
Manufacturer's date2017-09-29
NHTSA componentEQUIPMENT ADAPTIVE/MOBILITY; POWER TRAIN:AXLE ASSEMBLY

NHTSA's summary

According to the notification received by Daimler Trucks North America; on certain vehicles, a check valve is missing on the auxiliary air tank, causing the tag axle steer tires to remain in a turn and then shifting into reverse. In addition, some of these vehicles also require an airline retrofit.

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, Transmission and driveline, Axle

Vehicles listed
FOREST RIVER BERKSHIRE2016 to 2017

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