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Service bulletin 3329

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 id10017201
Published by NHTSA2005-10-28
Manufacturer's number3329
NHTSA componentVEHICLE SPEED CONTROL:CRUISE CONTROL

NHTSA's summary

SURGE, CHUGGLE OR BUCK WHILE DRIVING DOWNHILL (APPROXIMATELY 1500 - 3000 FEET ABOVE SEA LEVEL) AT HIGHWAY SPEEDS WITH THE CRUISE CONTROL ON. *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

Throttle and cruise control

Vehicles listed
BUICK RAINIER2004
CHEVROLET TRAILBLAZER2004
GMC ENVOY2004
OLDSMOBILE BRAVADA2004

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
PIT54802017-08-15. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that intermittently the cruise control is inoperative or that it will not set around or over 70 mph. Technician will need to insure that all four tires are the same size, brand and have similar wear. Verify the Power Control Module and Electronic Brake Control Module tire calibrations are correct. Technician will now check the Instrument Panel Cluster, Power Control Module and Electronic Brake Control Module data for the wheel speeds at 70 MPH or above and write down the difference for each set of speed data. Technician will need to use a Global Positioning System to determine actual speed and compare it to the Power Control Module and Electronic Brake Control Module readings. If the Global Positioning System and Power Control Module speeds match, suspect front wheel hubs and they should be replaced.
31982004-12-04. Service bulletin. NO CRUISE CONTROL AND DIAGNOSTIC TROUBLE CODE P0741. *EH
30422004-10-14. Service bulletin. CRUISE CONTROL DISENGAGES AFTER ACCELERATING. *TT
014702003-12-06. Service bulletin. ERRATIC IDLE, IDLE SURGE, ROUGH RUN, OR NEAR STALL. *TT