TSB: BUICK 9-7X, AVALANCHE, CAMARO, ENVOY, IMPALA, LACROSSE, MONTE CARLO, RAINIER, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA DENALI, SILVERADO, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SUBURBAN, TAHOE, TRAILBLAZER, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2007–2019)

Bulletin 060605001H — March 5, 2019

Bulletin Details

Bulletin ID060605001H
ManufacturerBUICK
Models9-7X, AVALANCHE, CAMARO, ENVOY, IMPALA, LACROSSE, MONTE CARLO, RAINIER, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA DENALI, SILVERADO, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SUBURBAN, TAHOE, TRAILBLAZER, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL
Model Years2007–2019
Date IssuedMarch 5, 2019
Date Added to NHTSAApril 22, 2019
ComponentENGINE AND ENGINE COOLING:EXHAUST SYSTEM
Vehicles Affected294 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 informational bulletin explains the normal characteristics of exhaust noise during active fuel management when in Three or Four Cylinder Mode.

Affected Vehicles

MakeModelYearComponent
CHEVROLET CAMARO 2019 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET CAMARO 2019 350000 EQUIPMENT
CHEVROLET IMPALA 2019 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET IMPALA 2019 350000 EQUIPMENT
GMC SIERRA 1500 2019 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 1500 2019 350000 EQUIPMENT
CHEVROLET SILVERADO 2500 2019 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 2500 2019 350000 EQUIPMENT
CHEVROLET SILVERADO 4500HD 2019 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 4500HD 2019 350000 EQUIPMENT
CHEVROLET SUBURBAN 2019 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SUBURBAN 2019 350000 EQUIPMENT
CHEVROLET TAHOE 2019 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET TAHOE 2019 350000 EQUIPMENT
GMC YUKON 2019 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON 2019 350000 EQUIPMENT
GMC YUKON XL 2019 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON XL 2019 350000 EQUIPMENT
CHEVROLET CAMARO 2018 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET CAMARO 2018 350000 EQUIPMENT
CHEVROLET IMPALA 2018 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET IMPALA 2018 350000 EQUIPMENT
GMC SIERRA 2500 2018 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 2500 2018 350000 EQUIPMENT
GMC SIERRA DENALI 2018 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA DENALI 2018 350000 EQUIPMENT
CHEVROLET SILVERADO 2500 2018 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 2500 2018 350000 EQUIPMENT
CHEVROLET SUBURBAN 2018 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SUBURBAN 2018 350000 EQUIPMENT
CHEVROLET TAHOE 2018 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET TAHOE 2018 350000 EQUIPMENT
GMC YUKON 2018 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON 2018 350000 EQUIPMENT
GMC YUKON XL 2018 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON XL 2018 350000 EQUIPMENT
CHEVROLET CAMARO 2017 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET CAMARO 2017 350000 EQUIPMENT
CHEVROLET IMPALA 2017 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET IMPALA 2017 350000 EQUIPMENT
GMC SIERRA 2017 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 2017 350000 EQUIPMENT
CHEVROLET SILVERADO 2017 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 2017 350000 EQUIPMENT
CHEVROLET SUBURBAN 2017 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SUBURBAN 2017 350000 EQUIPMENT
CHEVROLET TAHOE 2017 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET TAHOE 2017 350000 EQUIPMENT
GMC YUKON 2017 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON 2017 350000 EQUIPMENT
GMC YUKON XL 2017 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON XL 2017 350000 EQUIPMENT
CHEVROLET CAMARO 2016 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET CAMARO 2016 350000 EQUIPMENT
CHEVROLET IMPALA 2016 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET IMPALA 2016 350000 EQUIPMENT
CHEVROLET SILVERADO 2500 2016 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 2500 2016 350000 EQUIPMENT
CHEVROLET SUBURBAN 2016 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SUBURBAN 2016 350000 EQUIPMENT
CHEVROLET TAHOE 2016 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET TAHOE 2016 350000 EQUIPMENT
GMC YUKON 2016 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON 2016 350000 EQUIPMENT
GMC YUKON XL 2016 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON XL 2016 350000 EQUIPMENT
CHEVROLET CAMARO 2015 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET CAMARO 2015 350000 EQUIPMENT
CHEVROLET IMPALA 2015 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET IMPALA 2015 350000 EQUIPMENT
GMC SIERRA 2500 2015 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 2500 2015 350000 EQUIPMENT
GMC SIERRA DENALI 2015 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA DENALI 2015 350000 EQUIPMENT
CHEVROLET SILVERADO 2500 2015 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 2500 2015 350000 EQUIPMENT
CHEVROLET SUBURBAN 2015 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SUBURBAN 2015 350000 EQUIPMENT
CHEVROLET TAHOE 2015 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET TAHOE 2015 350000 EQUIPMENT
GMC YUKON 2015 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON 2015 350000 EQUIPMENT
GMC YUKON XL 2015 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON XL 2015 350000 EQUIPMENT
CHEVROLET CAMARO 2014 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET CAMARO 2014 350000 EQUIPMENT
CHEVROLET IMPALA 2014 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET IMPALA 2014 350000 EQUIPMENT
GMC SIERRA 1500 2014 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 1500 2014 350000 EQUIPMENT
CHEVROLET SILVERADO 1500 2014 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 1500 2014 350000 EQUIPMENT
CHEVROLET SUBURBAN 2014 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SUBURBAN 2014 350000 EQUIPMENT
CHEVROLET TAHOE 2014 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET TAHOE 2014 350000 EQUIPMENT
GMC YUKON 2014 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON 2014 350000 EQUIPMENT
GMC YUKON XL 2014 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON XL 2014 350000 EQUIPMENT
CHEVROLET AVALANCHE 2013 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET AVALANCHE 2013 350000 EQUIPMENT
CHEVROLET CAMARO 2013 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET CAMARO 2013 350000 EQUIPMENT
GMC SIERRA 2500 2013 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 2500 2013 350000 EQUIPMENT
GMC SIERRA DENALI 2013 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA DENALI 2013 350000 EQUIPMENT
CHEVROLET SILVERADO 2500 2013 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 2500 2013 350000 EQUIPMENT
CHEVROLET SILVERADO 3500 2013 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 3500 2013 350000 EQUIPMENT
CHEVROLET SUBURBAN 2013 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SUBURBAN 2013 350000 EQUIPMENT
CHEVROLET TAHOE 2013 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET TAHOE 2013 350000 EQUIPMENT
GMC YUKON 2013 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON 2013 350000 EQUIPMENT
GMC YUKON DENALI 2013 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON DENALI 2013 350000 EQUIPMENT
GMC YUKON DENALI XL 2013 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON DENALI XL 2013 350000 EQUIPMENT
GMC YUKON XL 2013 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON XL 2013 350000 EQUIPMENT
CHEVROLET AVALANCHE 2012 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET AVALANCHE 2012 350000 EQUIPMENT
GMC SIERRA 2500 2012 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 2500 2012 350000 EQUIPMENT
GMC SIERRA DENALI 2012 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA DENALI 2012 350000 EQUIPMENT
CHEVROLET SILVERADO 2500 2012 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 2500 2012 350000 EQUIPMENT
CHEVROLET SUBURBAN 2012 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SUBURBAN 2012 350000 EQUIPMENT
CHEVROLET TAHOE 2012 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET TAHOE 2012 350000 EQUIPMENT
GMC YUKON 2012 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON 2012 350000 EQUIPMENT
GMC YUKON DENALI 2012 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON DENALI 2012 350000 EQUIPMENT
GMC YUKON DENALI XL 2012 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON DENALI XL 2012 350000 EQUIPMENT
GMC YUKON XL 2012 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON XL 2012 350000 EQUIPMENT
CHEVROLET AVALANCHE 2011 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET AVALANCHE 2011 350000 EQUIPMENT
CHEVROLET CAMARO 2011 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET CAMARO 2011 350000 EQUIPMENT
GMC SIERRA 2500 2011 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 2500 2011 350000 EQUIPMENT
GMC SIERRA DENALI 2011 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA DENALI 2011 350000 EQUIPMENT
CHEVROLET SILVERADO 1500 2011 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 1500 2011 350000 EQUIPMENT
CHEVROLET SILVERADO 2500 2011 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 2500 2011 350000 EQUIPMENT
CHEVROLET SUBURBAN 2011 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SUBURBAN 2011 350000 EQUIPMENT
CHEVROLET TAHOE 2011 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET TAHOE 2011 350000 EQUIPMENT
GMC YUKON 2011 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON 2011 350000 EQUIPMENT
GMC YUKON DENALI 2011 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON DENALI 2011 350000 EQUIPMENT
GMC YUKON DENALI XL 2011 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON DENALI XL 2011 350000 EQUIPMENT
GMC YUKON XL 2011 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON XL 2011 350000 EQUIPMENT
CHEVROLET AVALANCHE 2010 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET AVALANCHE 2010 350000 EQUIPMENT
CHEVROLET CAMARO 2010 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET CAMARO 2010 350000 EQUIPMENT
CHEVROLET IMPALA 2010 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET IMPALA 2010 350000 EQUIPMENT
GMC SIERRA 2500 2010 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 2500 2010 350000 EQUIPMENT
GMC SIERRA DENALI 2010 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA DENALI 2010 350000 EQUIPMENT
CHEVROLET SILVERADO 1500 2010 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 1500 2010 350000 EQUIPMENT
CHEVROLET SILVERADO 2500 2010 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 2500 2010 350000 EQUIPMENT
CHEVROLET SUBURBAN 2010 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SUBURBAN 2010 350000 EQUIPMENT
CHEVROLET TAHOE 2010 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET TAHOE 2010 350000 EQUIPMENT
GMC YUKON 2010 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON 2010 350000 EQUIPMENT
GMC YUKON DENALI 2010 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON DENALI 2010 350000 EQUIPMENT
GMC YUKON DENALI XL 2010 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON DENALI XL 2010 350000 EQUIPMENT
GMC YUKON XL 2010 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON XL 2010 350000 EQUIPMENT
SAAB 9-7X 2009 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
SAAB 9-7X 2009 350000 EQUIPMENT
CHEVROLET AVALANCHE 2009 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET AVALANCHE 2009 350000 EQUIPMENT
GMC ENVOY 2009 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC ENVOY 2009 350000 EQUIPMENT
CHEVROLET IMPALA 2009 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET IMPALA 2009 350000 EQUIPMENT
BUICK LACROSSE 2009 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
BUICK LACROSSE 2009 350000 EQUIPMENT
GMC SIERRA 2500 2009 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 2500 2009 350000 EQUIPMENT
GMC SIERRA DENALI 2009 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA DENALI 2009 350000 EQUIPMENT
CHEVROLET SILVERADO 1500 2009 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 1500 2009 350000 EQUIPMENT
CHEVROLET SILVERADO 2500 2009 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 2500 2009 350000 EQUIPMENT
CHEVROLET SUBURBAN 2009 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SUBURBAN 2009 350000 EQUIPMENT
CHEVROLET TAHOE 2009 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET TAHOE 2009 350000 EQUIPMENT
CHEVROLET TRAILBLAZER 2009 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET TRAILBLAZER 2009 350000 EQUIPMENT
GMC YUKON 2009 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON 2009 350000 EQUIPMENT
GMC YUKON DENALI 2009 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON DENALI 2009 350000 EQUIPMENT
GMC YUKON DENALI XL 2009 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON DENALI XL 2009 350000 EQUIPMENT
GMC YUKON XL 2009 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON XL 2009 350000 EQUIPMENT
SAAB 9-7X 2008 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
SAAB 9-7X 2008 350000 EQUIPMENT
CHEVROLET AVALANCHE 2008 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET AVALANCHE 2008 350000 EQUIPMENT
GMC ENVOY 2008 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC ENVOY 2008 350000 EQUIPMENT
CHEVROLET IMPALA 2008 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET IMPALA 2008 350000 EQUIPMENT
BUICK LACROSSE 2008 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
BUICK LACROSSE 2008 350000 EQUIPMENT
GMC SIERRA 2500 2008 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 2500 2008 350000 EQUIPMENT
GMC SIERRA DENALI 2008 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA DENALI 2008 350000 EQUIPMENT
CHEVROLET SILVERADO 1500 2008 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 1500 2008 350000 EQUIPMENT
CHEVROLET SILVERADO 2500 2008 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 2500 2008 350000 EQUIPMENT
CHEVROLET SUBURBAN 2008 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SUBURBAN 2008 350000 EQUIPMENT
CHEVROLET TAHOE 2008 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET TAHOE 2008 350000 EQUIPMENT
CHEVROLET TRAILBLAZER 2008 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET TRAILBLAZER 2008 350000 EQUIPMENT
GMC YUKON 2008 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON 2008 350000 EQUIPMENT
GMC YUKON DENALI 2008 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON DENALI 2008 350000 EQUIPMENT
GMC YUKON DENALI XL 2008 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON DENALI XL 2008 350000 EQUIPMENT
GMC YUKON XL 2008 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON XL 2008 350000 EQUIPMENT
SAAB 9-7X 2007 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
SAAB 9-7X 2007 350000 EQUIPMENT
CHEVROLET AVALANCHE 2007 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET AVALANCHE 2007 350000 EQUIPMENT
GMC ENVOY 2007 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC ENVOY 2007 350000 EQUIPMENT
CHEVROLET IMPALA 2007 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET IMPALA 2007 350000 EQUIPMENT
BUICK LACROSSE 2007 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
BUICK LACROSSE 2007 350000 EQUIPMENT
CHEVROLET MONTE CARLO 2007 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET MONTE CARLO 2007 350000 EQUIPMENT
BUICK RAINIER 2007 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
BUICK RAINIER 2007 350000 EQUIPMENT
GMC SIERRA 2500 2007 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA 2500 2007 350000 EQUIPMENT
GMC SIERRA DENALI 2007 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC SIERRA DENALI 2007 350000 EQUIPMENT
CHEVROLET SILVERADO 1500 2007 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 1500 2007 350000 EQUIPMENT
CHEVROLET SILVERADO 2500 2007 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SILVERADO 2500 2007 350000 EQUIPMENT
CHEVROLET SUBURBAN 2007 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET SUBURBAN 2007 350000 EQUIPMENT
CHEVROLET TAHOE 2007 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET TAHOE 2007 350000 EQUIPMENT
CHEVROLET TRAILBLAZER 2007 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET TRAILBLAZER 2007 350000 EQUIPMENT
GMC YUKON 2007 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON 2007 350000 EQUIPMENT
GMC YUKON DENALI 2007 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON DENALI 2007 350000 EQUIPMENT
GMC YUKON DENALI XL 2007 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON DENALI XL 2007 350000 EQUIPMENT
GMC YUKON XL 2007 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
GMC YUKON XL 2007 350000 EQUIPMENT

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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 (060605001H) 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.