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Service bulletin TSN 32-05

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 id10193229
Published by NHTSA2021-05-13
Manufacturer's numberTSN 32-05
Manufacturer's date2014-11-26
NHTSA componentEQUIPMENT; SUSPENSION

NHTSA's summary

TSN for Freightliner vehicles equipped with Hendrickson AIRTEK steer axle suspension - Customer / Driver complaints of popping noise originating from the front suspension. Incorrect fastener clamp load at the rear shackle bracket can result in premature wear of the aluminum shackle and bushing sleeve.

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, Suspension

Vehicles listed
FREIGHTLINER FREIGHTLINER

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