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Service bulletin PN668

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 id10152387
Published by NHTSA2018-12-17
Manufacturer's numberPN668
Manufacturer's date2018-11-16
NHTSA componentVEHICLE SPEED CONTROL; ENGINE

NHTSA's summary

Notice that the programing of the IH Daimond Logic chassis controller did not provide two speed operation. It does not increase the engine speed (about 400 rpm) above the torque lock up speed to provide maximum pump flow. Four units remain to be reprogrammed at their next maintenance inteval.

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

Engine, Throttle and cruise control

Vehicles listed
TEREX HR462018
TEREX TL502018

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