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Service bulletin SB32-040

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 id10168039
Published by NHTSA2019-11-20
Manufacturer's numberSB32-040
Manufacturer's date2019-11-19
NHTSA componentSUSPENSION:REAR:SPRINGS:AIR SUSPENSION SYSTEM; EQUIPMENT

NHTSA's summary

Service Bulletin for troubleshooting Airliner suspension air-spring bag misalignment. This version updates applicability to New Cascadia.

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, Air suspension

Vehicles listed
FREIGHTLINER CASCADIA2017, 2018, 2019, 2020

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