TSB: CADILLAC AVALANCHE, AVALANCHE 1500, CORVETTE, ESCALADE, ESCALADE ESV, ESCALADE EXT, G8, H2, H2 SUT, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SUBURBAN, SUBURBAN 1500, SUBURBAN 2500, TAHOE, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL, YUKON XL 1500, YUKON XL 2500 (2006-2009)

Bulletin PIP-4395 - August 1, 2008

Bulletin Details

Bulletin IDPIP-4395
ManufacturerCADILLAC
ModelsAVALANCHE, AVALANCHE 1500, CORVETTE, ESCALADE, ESCALADE ESV, ESCALADE EXT, G8, H2, H2 SUT, SIERRA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SUBURBAN, SUBURBAN 1500, SUBURBAN 2500, TAHOE, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL, YUKON XL 1500, YUKON XL 2500
Model Years2006-2009
Date IssuedAugust 1, 2008
Date Added to NHTSAOctober 2, 2008
ComponentPOWER TRAIN:AUTOMATIC TRANSMISSION
Vehicles Affected64 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

GMC: FLARE AND OR HARSH 2-3 SHIFTS. THIS CONDITION MAY BE CAUSED BY LEAKING 1-2-3-4 AND 3-5-R CLUTCH FLUID SEAL RINGS (230). MODELS CADILLACS, CHEVROLETS, GMC, HUMMERS, PONTIACS. EQUIPPED WITH 6L80 (RPO MYC) OR 6L90 (RPO MYD) AUTOMATI

Affected Vehicles

MakeModelYearComponent
CHEVROLET AVALANCHE 2009 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET AVALANCHE 1500 2009 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET CORVETTE 2009 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CADILLAC ESCALADE 2009 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CADILLAC ESCALADE ESV 2009 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CADILLAC ESCALADE EXT 2009 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
PONTIAC G8 2009 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
HUMMER H2 2009 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC SIERRA 2009 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC SIERRA 1500 2009 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC SIERRA 2500 2009 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC SIERRA 3500 2009 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET SILVERADO 2009 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET SILVERADO 1500 2009 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET SILVERADO 2500 2009 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET SILVERADO 3500 2009 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET SUBURBAN 2009 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET SUBURBAN 1500 2009 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET SUBURBAN 2500 2009 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET TAHOE 2009 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC YUKON 2009 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC YUKON DENALI 2009 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC YUKON DENALI XL 2009 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC YUKON XL 2009 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC YUKON XL 1500 2009 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC YUKON XL 2500 2009 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET CORVETTE 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CADILLAC ESCALADE 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CADILLAC ESCALADE ESV 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CADILLAC ESCALADE EXT 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
PONTIAC G8 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
HUMMER H2 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
HUMMER H2 SUT 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC SIERRA 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC SIERRA 1500 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC SIERRA 2500 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC SIERRA 3500 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET SILVERADO 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET SILVERADO 1500 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET SILVERADO 2500 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET SILVERADO 3500 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET SUBURBAN 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET SUBURBAN 1500 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET SUBURBAN 2500 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC YUKON DENALI 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC YUKON DENALI XL 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC YUKON XL 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC YUKON XL 1500 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC YUKON XL 2500 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET CORVETTE 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CADILLAC ESCALADE 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CADILLAC ESCALADE ESV 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CADILLAC ESCALADE EXT 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC SIERRA 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC SIERRA 1500 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC SIERRA 2500 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC SIERRA 3500 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET SILVERADO 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET SILVERADO 1500 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET SILVERADO 2500 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET SILVERADO 3500 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC YUKON DENALI 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC YUKON DENALI XL 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET CORVETTE 2006 103000 POWER TRAIN:AUTOMATIC TRANSMISSION

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What Should You Do?

If your vehicle is affected by this TSB, contact your authorized CADILLAC dealer. Bring this bulletin ID (PIP-4395) 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.