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Service bulletin 3214

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 id10010617
Published by NHTSA2004-12-02
Manufacturer's number3214
NHTSA componentLATCHES/LOCKS/LINKAGES

NHTSA's summary

REAR DOOR LOCKS INOPERATIVE SIR LAMP RADIO ONSTAR HAS POOR SOUND QUALITY. *EH

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

Latches and locks

Vehicles listed
BUICK RAINIER2005
CHEVROLET TRAILBLAZER 3602005 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TRAILBLAZER EXT 3702005 (the catalog's model; the bulletin names a series or trim of it)
GMC ENVOY2005

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

Other bulletins for the same vehicles and component
PI-0011A2011-06-15. Service bulletin. GM: THE FRONT OR REAR DOOR MAY NOT OPEN FROM THE INSIDE OR OUTSIDE HANDLE, THE DOOR WILL NOT UNLOCK WITH ANY METHOD. THE PROBABLY CAUSE AN INCORRECT INSTALLATION OF A HANDLE COMPONENT. *RM UPDATED ON 7/26/2013. ALL 2014 AND PRIOR GM PASSENGER CARS AND TRUCKS. *KB
0708520032007-11-03. Service bulletin. REAR LIFTGATE GLASS MAY NOT LOCK WHEN USING REMOTE KEYLESS ENTRY (RKE), KEY FOB TRANSMITTER OR DOOR LOCK SWITCH, AND/OR LIFTGATE HATCH OR LIFTGATE GLASS MAY LOCK THEN UNLOCK WHEN REAR LIFTGATE GLASS BUTTON IS DEPRESSED (REPOSITION LOCK CYLINDER WAVE WASHER AND ADJUST LOCK ROD) *NJ