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Service bulletin sp54021

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 id10141805
Published by NHTSA2018-06-18
Manufacturer's numbersp54021
Manufacturer's date2018-02-26
NHTSA componentEQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:ELECTRICAL

NHTSA's summary

sp54021 PTO Dash Control Switch

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

Equipment and accessories

Vehicles listed
STERLING A-LINE2004 to 2009
STERLING ACTERRA2005 to 2009
STERLING L-LINE2004 to 2009

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