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Service bulletin PU-08-008

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 id10191324
Published by NHTSA2021-05-03
Manufacturer's numberPU-08-008
Manufacturer's date2017-05-24
NHTSA componentTRAILER HITCHES; SUSPENSION; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC)

NHTSA's summary

Hendrickson Trailer Commercial Vehicle Systems is pleased to announce the availability of additional ride heights on ZMD® ZERO MAINTENANCE DAMPING® technology for INTRAAX® AANT 23K integrated suspension systems. Previously only available for 14-inch ride heights, ZMD can now be specified for AANT 23K models with 15-inch through 17-inch ride heights with standard travel.

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, Trailer hitch

Vehicles listed
HENDRICKSON HENDRICKSON

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