WenmarOpen by Wenmar Pro

Service bulletin KC-2140

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 id10200807
Published by NHTSA2021-09-02
Manufacturer's numberKC-2140
Manufacturer's date2021-08-25
NHTSA componentPARKING BRAKE

NHTSA's summary

Mack Chassis - P105E662 Park brake Sensor/Switch Circuit Range/Performance, Signal Compare failure - Diagnostic Instructions - US21+OBD21 Emissions

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, Parking brake

Vehicles listed
MACK MACK

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