WenmarOpen by Wenmar Pro

Service bulletin SBT54-020

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 id10172554
Published by NHTSA2020-03-17
Manufacturer's numberSBT54-020
Manufacturer's date2020-03-17
NHTSA componentEQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ELECTRICAL SYSTEM

NHTSA's summary

Thomas Built Buses Service Bulletin for Guidelines for Repairing or Replacing an Electrical Harness. Use the guidelines in this bulletin to determine if a damaged electrical harness should be repaired or replaced.

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

Electrical system, Equipment and accessories

Vehicles listed
THOMAS BUILT BUSES SAF-T-LINER C22015 to 2021

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