TSB: CADILLAC AVALANCHE 1500, AVALANCHE 2500, ESCALADE, ESCALADE ESV, ESCALADE EXT 1500, EXPRESS 1500, EXPRESS 2500, SILVERADO 1500, SILVERADO 2500, SUBURBAN 1500, SUBURBAN 2500, TAHOE (2003–2007)

Bulletin DOR-R3U4D-11 — October 10, 2016

Bulletin Details

Bulletin IDDOR-R3U4D-11
ManufacturerCADILLAC
ModelsAVALANCHE 1500, AVALANCHE 2500, ESCALADE, ESCALADE ESV, ESCALADE EXT 1500, EXPRESS 1500, EXPRESS 2500, SILVERADO 1500, SILVERADO 2500, SUBURBAN 1500, SUBURBAN 2500, TAHOE
Model Years2003–2007
Date IssuedOctober 10, 2016
Date Added to NHTSANovember 7, 2016
ComponentELECTRICAL SYSTEM:SOFTWARE
Vehicles Affected46 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

ALL APPLICABLE VEHICLE APPLICATIONS ARE WITHOUT ELECTRONIC ACCESSORY CONTROL SYSTEM OPTION. THIS COMMUNICATION IS TO RETURN UNSOLD INVENTORY BECAUSE SOME PRODUCT SOLD IN 2016 MAY NOT HAVE COIL HARNESS WOUND IN A CENTERED CONDITION AS AN ASS

Affected Vehicles

MakeModelYearComponent
CHEVROLET EXPRESS 1500 2007 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET AVALANCHE 1500 2006 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET AVALANCHE 2500 2006 118000 ELECTRICAL SYSTEM:SOFTWARE
CADILLAC ESCALADE 2006 118000 ELECTRICAL SYSTEM:SOFTWARE
CADILLAC ESCALADE ESV 2006 118000 ELECTRICAL SYSTEM:SOFTWARE
CADILLAC ESCALADE EXT 1500 2006 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET EXPRESS 1500 2006 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET SILVERADO 1500 2006 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET SUBURBAN 1500 2006 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET SUBURBAN 2500 2006 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET TAHOE 2006 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET AVALANCHE 1500 2005 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET AVALANCHE 2500 2005 118000 ELECTRICAL SYSTEM:SOFTWARE
CADILLAC ESCALADE 2005 118000 ELECTRICAL SYSTEM:SOFTWARE
CADILLAC ESCALADE ESV 2005 118000 ELECTRICAL SYSTEM:SOFTWARE
CADILLAC ESCALADE EXT 1500 2005 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET EXPRESS 1500 2005 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET EXPRESS 2500 2005 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET SILVERADO 1500 2005 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET SUBURBAN 1500 2005 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET SUBURBAN 2500 2005 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET TAHOE 2005 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET AVALANCHE 1500 2004 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET AVALANCHE 2500 2004 118000 ELECTRICAL SYSTEM:SOFTWARE
CADILLAC ESCALADE 2004 118000 ELECTRICAL SYSTEM:SOFTWARE
CADILLAC ESCALADE ESV 2004 118000 ELECTRICAL SYSTEM:SOFTWARE
CADILLAC ESCALADE EXT 1500 2004 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET EXPRESS 1500 2004 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET EXPRESS 2500 2004 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET SILVERADO 1500 2004 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET SILVERADO 2500 2004 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET SUBURBAN 1500 2004 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET SUBURBAN 2500 2004 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET TAHOE 2004 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET AVALANCHE 1500 2003 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET AVALANCHE 2500 2003 118000 ELECTRICAL SYSTEM:SOFTWARE
CADILLAC ESCALADE 2003 118000 ELECTRICAL SYSTEM:SOFTWARE
CADILLAC ESCALADE ESV 2003 118000 ELECTRICAL SYSTEM:SOFTWARE
CADILLAC ESCALADE EXT 1500 2003 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET EXPRESS 1500 2003 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET EXPRESS 2500 2003 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET SILVERADO 1500 2003 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET SILVERADO 2500 2003 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET SUBURBAN 1500 2003 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET SUBURBAN 2500 2003 118000 ELECTRICAL SYSTEM:SOFTWARE
CHEVROLET TAHOE 2003 118000 ELECTRICAL SYSTEM:SOFTWARE

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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 (DOR-R3U4D-11) 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.