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Service bulletin 33

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 id619224
Published by NHTSA2001-05-19
Manufacturer's number33
Manufacturer's date2001-03-01
NHTSA componentVISIBILITY:POWER WINDOW DEVICES AND CONTROLS

NHTSA's summary

INFORMATION ON THE HOMELINK TRANSMITTER TESTER WHICH PROVIDES REMOTE OPERATION OF GARAGE DOORS, ESTATE GATES, HOME LIGHTING, AND OTHER ACCESSORIES, USING A 3-CHANNEL TRANSCEIVER BUILT INTO THE VEHICLE. *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

Glass, wipers and mirrors, Power windows

Vehicles listed
GMC GM

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