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Service bulletin Notification 7

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 id10162724
Published by NHTSA2019-07-15
Manufacturer's numberNotification 7
Manufacturer's date2008-11-17
NHTSA componentSUSPENSION; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC)

NHTSA's summary

Shackles can get in the incorrect position on the equalizer when loading /unloading tandem axle trailers. This notification identifies condition and process to orient shackles in correct position for proper suspension operation.

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

Driver assistance, Suspension

Vehicles listed
TRAILSTAR BOAT TRAILER2008
TRAILSTAR K21VTA2008
TRAILSTAR K23VTA2008
TRAILSTAR P272008
TRAILSTAR P302008
TRAILSTAR P322008

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