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Service bulletin 3356

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 id10013491
Published by NHTSA2005-04-20
Manufacturer's number3356
NHTSA componentEXTERIOR LIGHTING:TURN SIGNAL:FLASHER UNIT

NHTSA's summary

TURN SIGNAL FLASH TOO FAST, OPPOSITE SIDE DIM. *TT

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
CHEVROLET EXPRESS1996
CHEVROLET EXPRESS1997, 1998, 1999, 2000, 2001, 2002
GMC SAVANA1996, 1997, 1998, 1999, 2000, 2001, 2002

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