TSB: CADILLAC AVALANCHE, AVALANCHE 1500, AVALANCHE 2500, ESCALADE, SIERRA, SIERRA 2500, SIERRA CLASSIC, SILVERADO, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SUBURBAN, SUBURBAN 1500, SUBURBAN 2500, TAHOE, YUKON, YUKON DENALI, YUKON XL, YUKON XL 2500 (2003–2012)

Bulletin 050232008 — April 1, 2011

Bulletin Details

Bulletin ID050232008
ManufacturerCADILLAC
ModelsAVALANCHE, AVALANCHE 1500, AVALANCHE 2500, ESCALADE, SIERRA, SIERRA 2500, SIERRA CLASSIC, SILVERADO, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SUBURBAN, SUBURBAN 1500, SUBURBAN 2500, TAHOE, YUKON, YUKON DENALI, YUKON XL, YUKON XL 2500
Model Years2003–2012
Date IssuedApril 1, 2011
Date Added to NHTSASeptember 19, 2007
ComponentSTEERING:HYDRAULIC POWER ASSIST:PUMP
Vehicles Affected76 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

GEAR BOX POWER STEERING PUMP, P/S PERFORMANCE CONCERNS. *NJ UPDATED ON 6/30/2011. *KB

Affected Vehicles

MakeModelYearComponent
CHEVROLET SUBURBAN 2012 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC YUKON 2012 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET SUBURBAN 1500 2011 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET SUBURBAN 2500 2011 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC YUKON XL 2500 2011 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC SIERRA 2010 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET SILVERADO 2500 2010 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET SILVERADO 3500 2010 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET SUBURBAN 1500 2010 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET SUBURBAN 2500 2010 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC YUKON XL 2500 2010 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC SIERRA 2009 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET SILVERADO 2500 2009 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET SILVERADO 3500 2009 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET SUBURBAN 1500 2009 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET SUBURBAN 2500 2009 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC YUKON XL 2500 2009 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC SIERRA 2500 2008 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET SILVERADO 1500 2008 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET SILVERADO 2500 2008 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET SILVERADO 3500 2008 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET SUBURBAN 1500 2008 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET SUBURBAN 2500 2008 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC YUKON 2008 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC YUKON XL 2500 2008 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC SIERRA 2500 2007 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC SIERRA CLASSIC 2007 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET SILVERADO 2007 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET SILVERADO 2500 2007 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET SILVERADO 3500 2007 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET SUBURBAN 1500 2007 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC YUKON 2007 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC YUKON XL 2500 2007 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET AVALANCHE 1500 2006 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET AVALANCHE 2500 2006 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CADILLAC ESCALADE 2006 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC SIERRA 2006 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC SIERRA CLASSIC 2006 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET SILVERADO 2006 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET SUBURBAN 1500 2006 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET SUBURBAN 2500 2006 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET TAHOE 2006 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC YUKON 2006 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC YUKON DENALI 2006 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC YUKON XL 2006 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET AVALANCHE 1500 2005 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET AVALANCHE 2500 2005 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CADILLAC ESCALADE 2005 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC SIERRA 2005 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC SIERRA CLASSIC 2005 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET SILVERADO 2005 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET SUBURBAN 2005 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET TAHOE 2005 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC YUKON 2005 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC YUKON DENALI 2005 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC YUKON XL 2005 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET AVALANCHE 2004 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CADILLAC ESCALADE 2004 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC SIERRA 2004 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC SIERRA CLASSIC 2004 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET SILVERADO 2004 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET SUBURBAN 2004 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET TAHOE 2004 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC YUKON 2004 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC YUKON DENALI 2004 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC YUKON XL 2004 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET AVALANCHE 2003 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CADILLAC ESCALADE 2003 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC SIERRA 2003 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC SIERRA CLASSIC 2003 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET SILVERADO 2003 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET SUBURBAN 2003 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
CHEVROLET TAHOE 2003 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC YUKON 2003 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC YUKON DENALI 2003 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
GMC YUKON XL 2003 015100 STEERING:HYDRAULIC POWER ASSIST:PUMP

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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 (050232008) 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.