WenmarOpen by Wenmar Pro

Service bulletin 4066

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 id10020218
Published by NHTSA2006-08-19
Manufacturer's number4066
Replaces4066B
NHTSA componentEXTERIOR LIGHTING:TURN SIGNAL

NHTSA's summary

TURN SIGNALS WILL NOT CANCEL INTERMITTENTLY. *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 COBALT2005, 2006
CHEVROLET MALIBU2006
CHEVROLET MALIBU MAXX2006 (the catalog's model; the bulletin names a series or trim of it)

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