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Service bulletin SB-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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10053543
Published by NHTSA2013-11-06
Manufacturer's numberSB-42-05
Manufacturer's date2013-07-01
NHTSA componentSERVICE BRAKES, AIR:DISC:CALIPER; SERVICE BRAKES, AIR:DISC

NHTSA's summary

THOMAS BUILT BUSES: 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. *KB

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
THOMAS C22004 to 2005

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