TSB: BUICK AURORA, AZTEK, BLAZER, BONNEVILLE, BRAVADA, CATERA, CENTURY, DEVILLE, ELDORADO, ENVOY, ESCALADE, GRAND PRIX, IMPALA, INTRIGUE, JIMMY, KODIAK, LESABRE, MONTANA, MONTE CARLO, PARK AVENUE, REGAL, SEVILLE, SIERRA, SILVERADO, SUBURBAN, TAHOE, TOPKICK, TRAILBLAZER, UNKNOWN, VENTURE, YUKON (2001-2004)

Bulletin 3011 - January 1, 2004

Bulletin Details

Bulletin ID3011
ManufacturerBUICK
ModelsAURORA, AZTEK, BLAZER, BONNEVILLE, BRAVADA, CATERA, CENTURY, DEVILLE, ELDORADO, ENVOY, ESCALADE, GRAND PRIX, IMPALA, INTRIGUE, JIMMY, KODIAK, LESABRE, MONTANA, MONTE CARLO, PARK AVENUE, REGAL, SEVILLE, SIERRA, SILVERADO, SUBURBAN, TAHOE, TOPKICK, TRAILBLAZER, UNKNOWN, VENTURE, YUKON
Model Years2001-2004
Date IssuedJanuary 1, 2004
Date Added to NHTSAJanuary 31, 2005
ComponentENGINE AND ENGINE COOLING:ENGINE
Vehicles Affected106 combinations

What is a TSB?

A Technical Service Bulletin is a document issued by the vehicle manufacturer to inform dealership technicians about a known issue and the recommended repair procedure. TSBs are not mandatory recalls, they serve as repair guidance for common problems.

If your vehicle has this issue, bring this bulletin ID to your dealer. If under warranty, the repair should be covered at no cost.

Summary

HVAC BLOWER CONTINUES TO RUN WITH KEY OFF. 2003 CHEVROLET, GMC AND CADILLAC FULL SIZE PICKUPS AND UTILITIES. TT

Affected Vehicles

MakeModelYearComponent
PONTIAC AZTEK 2004 350000 EQUIPMENT
PONTIAC BONNEVILLE 2004 350000 EQUIPMENT
BUICK CENTURY 2004 350000 EQUIPMENT
CADILLAC DEVILLE 2004 350000 EQUIPMENT
GMC ENVOY 2004 350000 EQUIPMENT
CADILLAC ESCALADE 2004 350000 EQUIPMENT
PONTIAC GRAND PRIX 2004 350000 EQUIPMENT
CHEVROLET IMPALA 2004 350000 EQUIPMENT
CHEVROLET KODIAK 2004 061000 ENGINE AND ENGINE COOLING:ENGINE
BUICK LESABRE 2004 350000 EQUIPMENT
PONTIAC MONTANA 2004 350000 EQUIPMENT
CHEVROLET MONTE CARLO 2004 350000 EQUIPMENT
BUICK PARK AVENUE 2004 350000 EQUIPMENT
BUICK REGAL 2004 350000 EQUIPMENT
CADILLAC SEVILLE 2004 350000 EQUIPMENT
GMC SIERRA 2004 061000 ENGINE AND ENGINE COOLING:ENGINE
GMC SIERRA 2004 350000 EQUIPMENT
CHEVROLET SILVERADO 2004 061000 ENGINE AND ENGINE COOLING:ENGINE
CHEVROLET SUBURBAN 2004 350000 EQUIPMENT
CHEVROLET TAHOE 2004 350000 EQUIPMENT
GMC TOPKICK 2004 061000 ENGINE AND ENGINE COOLING:ENGINE
CHEVROLET TRAILBLAZER 2004 350000 EQUIPMENT
CHEVROLET VENTURE 2004 350000 EQUIPMENT
GMC YUKON 2004 350000 EQUIPMENT
PONTIAC AZTEK 2003 350000 EQUIPMENT
PONTIAC BONNEVILLE 2003 350000 EQUIPMENT
BUICK CENTURY 2003 350000 EQUIPMENT
CADILLAC DEVILLE 2003 350000 EQUIPMENT
GMC ENVOY 2003 350000 EQUIPMENT
CADILLAC ESCALADE 2003 350000 EQUIPMENT
PONTIAC GRAND PRIX 2003 350000 EQUIPMENT
CHEVROLET IMPALA 2003 350000 EQUIPMENT
CHEVROLET KODIAK 2003 061000 ENGINE AND ENGINE COOLING:ENGINE
BUICK LESABRE 2003 350000 EQUIPMENT
PONTIAC MONTANA 2003 350000 EQUIPMENT
CHEVROLET MONTE CARLO 2003 350000 EQUIPMENT
BUICK PARK AVENUE 2003 350000 EQUIPMENT
BUICK REGAL 2003 350000 EQUIPMENT
CADILLAC SEVILLE 2003 350000 EQUIPMENT
GMC SIERRA 2003 061000 ENGINE AND ENGINE COOLING:ENGINE
GMC SIERRA 2003 350000 EQUIPMENT
CHEVROLET SILVERADO 2003 061000 ENGINE AND ENGINE COOLING:ENGINE
CHEVROLET SUBURBAN 2003 350000 EQUIPMENT
CHEVROLET TAHOE 2003 350000 EQUIPMENT
GMC TOPKICK 2003 061000 ENGINE AND ENGINE COOLING:ENGINE
CHEVROLET TRAILBLAZER 2003 350000 EQUIPMENT
CHEVROLET VENTURE 2003 350000 EQUIPMENT
GMC YUKON 2003 350000 EQUIPMENT
OLDSMOBILE AURORA 2002 350000 EQUIPMENT
PONTIAC AZTEK 2002 350000 EQUIPMENT
PONTIAC BONNEVILLE 2002 350000 EQUIPMENT
OLDSMOBILE BRAVADA 2002 350000 EQUIPMENT
CADILLAC CATERA 2002 350000 EQUIPMENT
BUICK CENTURY 2002 350000 EQUIPMENT
CADILLAC DEVILLE 2002 350000 EQUIPMENT
CADILLAC ELDORADO 2002 350000 EQUIPMENT
GMC ENVOY 2002 350000 EQUIPMENT
CADILLAC ESCALADE 2002 350000 EQUIPMENT
PONTIAC GRAND PRIX 2002 350000 EQUIPMENT
CHEVROLET IMPALA 2002 350000 EQUIPMENT
OLDSMOBILE INTRIGUE 2002 350000 EQUIPMENT
BUICK LESABRE 2002 350000 EQUIPMENT
PONTIAC MONTANA 2002 350000 EQUIPMENT
CHEVROLET MONTE CARLO 2002 350000 EQUIPMENT
BUICK PARK AVENUE 2002 350000 EQUIPMENT
BUICK REGAL 2002 350000 EQUIPMENT
CADILLAC SEVILLE 2002 350000 EQUIPMENT
GMC SIERRA 2002 061000 ENGINE AND ENGINE COOLING:ENGINE
GMC SIERRA 2002 350000 EQUIPMENT
CHEVROLET SILVERADO 2002 061000 ENGINE AND ENGINE COOLING:ENGINE
CHEVROLET SUBURBAN 2002 350000 EQUIPMENT
CHEVROLET TAHOE 2002 350000 EQUIPMENT
CHEVROLET TRAILBLAZER 2002 350000 EQUIPMENT
CHEVROLET VENTURE 2002 350000 EQUIPMENT
GMC YUKON 2002 350000 EQUIPMENT
OLDSMOBILE AURORA 2001 350000 EQUIPMENT
PONTIAC AZTEK 2001 350000 EQUIPMENT
CHEVROLET BLAZER 2001 350000 EQUIPMENT
PONTIAC BONNEVILLE 2001 350000 EQUIPMENT
OLDSMOBILE BRAVADA 2001 350000 EQUIPMENT
CADILLAC CATERA 2001 350000 EQUIPMENT
BUICK CENTURY 2001 350000 EQUIPMENT
CADILLAC DEVILLE 2001 350000 EQUIPMENT
CADILLAC ELDORADO 2001 350000 EQUIPMENT
GMC ENVOY 2001 350000 EQUIPMENT
CADILLAC ESCALADE 2001 350000 EQUIPMENT
PONTIAC GRAND PRIX 2001 350000 EQUIPMENT
CHEVROLET IMPALA 2001 350000 EQUIPMENT
OLDSMOBILE INTRIGUE 2001 350000 EQUIPMENT
GMC JIMMY 2001 350000 EQUIPMENT
CHEVROLET KODIAK 2001 061000 ENGINE AND ENGINE COOLING:ENGINE
BUICK LESABRE 2001 350000 EQUIPMENT
PONTIAC MONTANA 2001 350000 EQUIPMENT
CHEVROLET MONTE CARLO 2001 350000 EQUIPMENT
BUICK PARK AVENUE 2001 350000 EQUIPMENT
BUICK REGAL 2001 350000 EQUIPMENT
CADILLAC SEVILLE 2001 350000 EQUIPMENT
GMC SIERRA 2001 061000 ENGINE AND ENGINE COOLING:ENGINE
CHEVROLET SILVERADO 2001 061000 ENGINE AND ENGINE COOLING:ENGINE
CHEVROLET SUBURBAN 2001 350000 EQUIPMENT
CHEVROLET TAHOE 2001 350000 EQUIPMENT
CHEVROLET TRAILBLAZER 2001 350000 EQUIPMENT
CHEVROLET VENTURE 2001 350000 EQUIPMENT
GMC YUKON 2001 350000 EQUIPMENT
UNKNOWN UNKNOWN - 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
UNKNOWN UNKNOWN - 132000 VISIBILITY:GLASS, SIDE/REAR

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What Should You Do?

If your vehicle is affected by this TSB, contact your authorized BUICK dealer. Bring this bulletin ID (3011) when you visit. If under warranty, the repair should be free. If your warranty has expired, ask about goodwill coverage, manufacturers sometimes cover TSB-related repairs beyond the warranty period.

Frequently Asked Questions

A recall is a mandatory safety fix, the manufacturer must repair every affected vehicle for free. A TSB is an advisory document that describes a known issue and the recommended fix, but repairs are not required. However, some TSBs eventually lead to recalls if the issue poses a safety risk. TSBs are generally issued for quality or performance problems, while recalls address safety defects.

If your vehicle is still under the manufacturer's warranty, TSB-related repairs are typically covered at no cost. If your warranty has expired, you can ask the dealer about goodwill or customer assistance programs. Many manufacturers will cover or partially cover repairs for well-known issues, especially if the TSB was issued recently or affects a large number of vehicles.

Check the make, model, and model year listed above against your vehicle. If they match, this bulletin likely applies. However, TSBs may only affect vehicles with specific production dates, VIN ranges, or configurations. Your dealer can confirm by entering your VIN into their service system, which will show all applicable TSBs and recalls.

This data comes from the National Highway Traffic Safety Administration (NHTSA). Manufacturers are required to submit copies of all communications (including TSBs) sent to their dealers to NHTSA. The agency makes this data publicly available as part of its vehicle safety monitoring program.