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Service bulletin 611

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 id10016255
Published by NHTSA2005-09-06
Manufacturer's number611
Manufacturer's date2004-11-01
NHTSA componentVISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:HEATER CORE

NHTSA's summary

MIL CONCERN, P0128 STORED, HEATER PERFORMANCE. GM *SC

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

Glass, wipers and mirrors, Heating and air conditioning

Trouble codes named

P0128

Vehicles listed
UNKNOWN UNKNOWN

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