TSB: BUICK BRAVADA, ENVOY, ENVOY XL, ENVOY XL 370, ENVOY XUV, RAINIER, TRAILBLAZER, TRAILBLAZER EXT, TRAILBLAZER EXT 370 (2002–2009)

Bulletin PIT4297A — December 11, 2019

Bulletin Details

Bulletin IDPIT4297A
ManufacturerBUICK
ModelsBRAVADA, ENVOY, ENVOY XL, ENVOY XL 370, ENVOY XUV, RAINIER, TRAILBLAZER, TRAILBLAZER EXT, TRAILBLAZER EXT 370
Model Years2002–2009
Date IssuedDecember 11, 2019
Date Added to NHTSAJanuary 21, 2020
ComponentENGINE AND ENGINE COOLING
Vehicles Affected36 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

This Preliminary information communicates diagnostic information for a front noise.

Affected Vehicles

MakeModelYearComponent
GMC ENVOY 2009 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAILBLAZER 2009 060000 ENGINE AND ENGINE COOLING
GMC ENVOY 2008 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAILBLAZER 2008 060000 ENGINE AND ENGINE COOLING
GMC ENVOY 2007 060000 ENGINE AND ENGINE COOLING
BUICK RAINIER 2007 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAILBLAZER 2007 060000 ENGINE AND ENGINE COOLING
GMC ENVOY 2006 060000 ENGINE AND ENGINE COOLING
GMC ENVOY XL 2006 060000 ENGINE AND ENGINE COOLING
BUICK RAINIER 2006 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAILBLAZER 2006 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAILBLAZER EXT 2006 060000 ENGINE AND ENGINE COOLING
GMC ENVOY 2005 060000 ENGINE AND ENGINE COOLING
GMC ENVOY XL 370 2005 060000 ENGINE AND ENGINE COOLING
GMC ENVOY XUV 2005 060000 ENGINE AND ENGINE COOLING
BUICK RAINIER 2005 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAILBLAZER 2005 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAILBLAZER EXT 370 2005 060000 ENGINE AND ENGINE COOLING
OLDSMOBILE BRAVADA 2004 060000 ENGINE AND ENGINE COOLING
GMC ENVOY 2004 060000 ENGINE AND ENGINE COOLING
GMC ENVOY XL 2004 060000 ENGINE AND ENGINE COOLING
GMC ENVOY XUV 2004 060000 ENGINE AND ENGINE COOLING
BUICK RAINIER 2004 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAILBLAZER 2004 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAILBLAZER EXT 2004 060000 ENGINE AND ENGINE COOLING
OLDSMOBILE BRAVADA 2003 060000 ENGINE AND ENGINE COOLING
GMC ENVOY 2003 060000 ENGINE AND ENGINE COOLING
GMC ENVOY XL 2003 060000 ENGINE AND ENGINE COOLING
GMC ENVOY XUV 2003 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAILBLAZER 2003 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAILBLAZER EXT 2003 060000 ENGINE AND ENGINE COOLING
OLDSMOBILE BRAVADA 2002 060000 ENGINE AND ENGINE COOLING
GMC ENVOY 2002 060000 ENGINE AND ENGINE COOLING
GMC ENVOY XL 2002 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAILBLAZER 2002 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAILBLAZER EXT 2002 060000 ENGINE AND ENGINE COOLING

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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 (PIT4297A) 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.