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Service bulletin TSB990403

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 id612098
Published by NHTSA2000-06-05
Manufacturer's numberTSB990403
Manufacturer's date1999-08-01
NHTSA componentEXTERIOR LIGHTING:TURN SIGNAL:SWITCH

NHTSA's summary

SUBJECT REGARDING IRREGULAR FLASHER OPERATION. *MJS

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

Lighting, Turn signals

Vehicles listed
GULF STREAM FRIENDSHIP1998 to 1999
GULF STREAM SCENIC CRUISER1998 to 1999
GULF STREAM SUN VOYAGER1998 to 1999
SPARTAN AP-GT
SPARTAN K2 CHASSIS
SPARTAN MM

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