# Service bulletin WSB\-42\-05

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.

- Type: Service bulletin
- NHTSA id: 10046783
- Published by NHTSA: 2012\-10\-24
- Manufacturer's number: WSB\-42\-05
- Manufacturer's date: 2012\-08\-01
- NHTSA component: SERVICE BRAKES, AIR:DISC:CALIPER; SERVICE BRAKES, AIR:DISC

## NHTSA's summary

WESTERN STAR: AN ISSUE WITH THERMAL OVERLOAD ON BENDIX AIR DISC BRAKES WHERE ABS SENSOR WIRES MELTS, BRAKE ACTUATOR FAILS TO PROPERLY OPERATE DUE TO VENT HOLE IN BOTTOM NOT OPENING, CALIPERS COATED WITH RED OR BRIGHT ORANGE DUST AND TAPPED AND/OR GUIDE PIN BOOTS MELTED OR OTHERWISE SHOWS HEAT DAMAGE. MODELS CONSTELLATION, 4700, 4800, 4900, 5900 AND 6900. NO MODEL YEARS LISTED. \*PE

## 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

Brakes, Brake caliper

## Vehicles listed

- 2010 to 2013 WESTERN STAR 4700
- 2002 WESTERN STAR 4800
- 2010 to 2013 WESTERN STAR 4900
- 2003 WESTERN STAR 5900
- 2010 to 2013 WESTERN STAR 6900
- 2010 to 2012 WESTERN STAR CONSTELLATION

JSON: [/v1/bulletins/10046783](/v1/bulletins/10046783)

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