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Service bulletin P10859

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 id10075712
Published by NHTSA2016-07-07
Manufacturer's numberP10859
Manufacturer's date2016-03-01
NHTSA componentEQUIPMENT; ELECTRICAL SYSTEM

NHTSA's summary

Certain MACK CHU, CXU, and GU trucks built between 11/11/2013 and 01/14/2015, equipped with front radar may experience loss of front object detection or erratic operation of cruise control functions. The terminal seals of the harness is allowing moisture and corrosion to build up in the front radar harness. To ensure proper operation of the front radar, the harness is inspected for the proper seal and/or corrosion. If the harness or seal fail inspection, replacement of the harness is required. Follow the inspection and repair procedures outlined in this document.

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Electrical system, Equipment and accessories

Vehicles listed
MACK CHU2013 to 2015
MACK CXU2013 to 2015
MACK GU2013 to 2015

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