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Service bulletin L977 Rev H

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 id10162810
Published by NHTSA2019-07-15
Manufacturer's numberL977 Rev H
Manufacturer's date2019-03-01
NHTSA componentELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); SUSPENSION; EQUIPMENT

NHTSA's summary

Operation Name: Hendrickson Trailer Commercial Vehicle Systems Document Name: Identification Guide - Trailer Suspension and Axle Systems Summary: This document provides guidelines on locating and identifying model, serial number and other information for particular Hendrickson trailer suspension and axle systems.

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, Equipment and accessories, Suspension

Vehicles listed
HENDRICKSON HENDRICKSON

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