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Service bulletin REC18514

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 id10161095
Published by NHTSA2019-06-10
Manufacturer's numberREC18514
Manufacturer's date2018-10-17
NHTSA componentELECTRICAL SYSTEM; TRAILER HITCHES; SERVICE BRAKES, HYDRAULIC

NHTSA's summary

If a truck is operating with a trailer attached and the electrical connection is made between the truck and the trailer, the trailer brake lights in the combined stop/turn lamps may not illuminate when the truck service brakes are applied.

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

Brakes, Electrical system, Trailer hitch

Vehicles listed
INTERNATIONAL HV2018
INTERNATIONAL MV2019

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