TSB: CADILLAC AVALANCHE, CANYON, COLORADO, ENVOY, ESCALADE, ESCALADE ESV, ESCALADE EXT, EXPRESS, H2, H3, H3 SUT, SAVANA, SIERRA, SILVERADO, SUBURBAN, TAHOE, TRAILBLAZER, YUKON, YUKON XL (2008–2010)

Bulletin SB-11273 — December 1, 2013

Bulletin Details

Bulletin IDSB-11273
ManufacturerCADILLAC
ModelsAVALANCHE, CANYON, COLORADO, ENVOY, ESCALADE, ESCALADE ESV, ESCALADE EXT, EXPRESS, H2, H3, H3 SUT, SAVANA, SIERRA, SILVERADO, SUBURBAN, TAHOE, TRAILBLAZER, YUKON, YUKON XL
Model Years2008–2010
Date IssuedDecember 1, 2013
Date Added to NHTSANovember 19, 2012
ComponentENGINE (PWS)
Vehicles Affected52 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

HUMMER/CADILLAC, CHEVROLET, GMC: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. ENGINE MAY HAVE REDUCED POWER, RUNNING ROUGH, AND POSSIBLE HAVE MALFUNCTION INDICATOR LAMP ON, DUE THROTTLE POSITION SENSOR. MODELS 2008-2010 CADILLAC ESCALADE

Affected Vehicles

MakeModelYearComponent
CHEVROLET AVALANCHE 2010 060000 ENGINE (PWS)
GMC CANYON 2010 060000 ENGINE (PWS)
CHEVROLET COLORADO 2010 060000 ENGINE (PWS)
CADILLAC ESCALADE 2010 060000 ENGINE (PWS)
CADILLAC ESCALADE ESV 2010 060000 ENGINE (PWS)
CADILLAC ESCALADE EXT 2010 060000 ENGINE (PWS)
CHEVROLET EXPRESS 2010 060000 ENGINE (PWS)
HUMMER H3 2010 060000 ENGINE (PWS)
GMC SAVANA 2010 060000 ENGINE (PWS)
GMC SIERRA 2010 060000 ENGINE (PWS)
CHEVROLET SILVERADO 2010 060000 ENGINE (PWS)
CHEVROLET SUBURBAN 2010 060000 ENGINE (PWS)
CHEVROLET TAHOE 2010 060000 ENGINE (PWS)
GMC YUKON 2010 060000 ENGINE (PWS)
GMC YUKON XL 2010 060000 ENGINE (PWS)
CHEVROLET AVALANCHE 2009 060000 ENGINE (PWS)
GMC CANYON 2009 060000 ENGINE (PWS)
CHEVROLET COLORADO 2009 060000 ENGINE (PWS)
GMC ENVOY 2009 060000 ENGINE (PWS)
CADILLAC ESCALADE 2009 060000 ENGINE (PWS)
CADILLAC ESCALADE ESV 2009 060000 ENGINE (PWS)
CADILLAC ESCALADE EXT 2009 060000 ENGINE (PWS)
CHEVROLET EXPRESS 2009 060000 ENGINE (PWS)
HUMMER H2 2009 060000 ENGINE (PWS)
HUMMER H3 2009 060000 ENGINE (PWS)
HUMMER H3 SUT 2009 060000 ENGINE (PWS)
GMC SAVANA 2009 060000 ENGINE (PWS)
GMC SIERRA 2009 060000 ENGINE (PWS)
CHEVROLET SILVERADO 2009 060000 ENGINE (PWS)
CHEVROLET SUBURBAN 2009 060000 ENGINE (PWS)
CHEVROLET TAHOE 2009 060000 ENGINE (PWS)
CHEVROLET TRAILBLAZER 2009 060000 ENGINE (PWS)
GMC YUKON 2009 060000 ENGINE (PWS)
GMC YUKON XL 2009 060000 ENGINE (PWS)
CHEVROLET AVALANCHE 2008 060000 ENGINE (PWS)
GMC CANYON 2008 060000 ENGINE (PWS)
CHEVROLET COLORADO 2008 060000 ENGINE (PWS)
GMC ENVOY 2008 060000 ENGINE (PWS)
CADILLAC ESCALADE 2008 060000 ENGINE (PWS)
CADILLAC ESCALADE ESV 2008 060000 ENGINE (PWS)
CADILLAC ESCALADE EXT 2008 060000 ENGINE (PWS)
CHEVROLET EXPRESS 2008 060000 ENGINE (PWS)
HUMMER H2 2008 060000 ENGINE (PWS)
HUMMER H3 2008 060000 ENGINE (PWS)
GMC SAVANA 2008 060000 ENGINE (PWS)
GMC SIERRA 2008 060000 ENGINE (PWS)
CHEVROLET SILVERADO 2008 060000 ENGINE (PWS)
CHEVROLET SUBURBAN 2008 060000 ENGINE (PWS)
CHEVROLET TAHOE 2008 060000 ENGINE (PWS)
CHEVROLET TRAILBLAZER 2008 060000 ENGINE (PWS)
GMC YUKON 2008 060000 ENGINE (PWS)
GMC YUKON XL 2008 060000 ENGINE (PWS)

Related CADILLAC Recalls

CampaignModelYearComponentSummary
ESCALADE ESV 2026 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER ... General Motors has decided that certain 2027 Chevrolet Bolt EV, 2025-2026 Cad...
VISTIQ 2026 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER ... General Motors has decided that certain 2027 Chevrolet Bolt EV, 2025-2026 Cad...
ESCALADE IQL 2026 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER ... General Motors has decided that certain 2027 Chevrolet Bolt EV, 2025-2026 Cad...
OPTIQ 2025 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER ... General Motors has decided that certain 2027 Chevrolet Bolt EV, 2025-2026 Cad...
LYRIQ 2026 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER ... General Motors has decided that certain 2027 Chevrolet Bolt EV, 2025-2026 Cad...

What Should You Do?

If your vehicle is affected by this TSB, contact your authorized CADILLAC dealer. Bring this bulletin ID (SB-11273) 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.