TSB: CADILLAC ESCALADE, ESCALADE ESV, ESCALADE EXT, SIERRA 1500, SIERRA DENALI, SILVERADO 1500, TAHOE, YUKON, YUKON DENALI, YUKON XL (2009–2013)

Bulletin PIT4383Q — September 22, 2016

Bulletin Details

Bulletin IDPIT4383Q
ManufacturerCADILLAC
ModelsESCALADE, ESCALADE ESV, ESCALADE EXT, SIERRA 1500, SIERRA DENALI, SILVERADO 1500, TAHOE, YUKON, YUKON DENALI, YUKON XL
Model Years2009–2013
Date IssuedSeptember 22, 2016
Date Added to NHTSAMay 22, 2017
ComponentSERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
Vehicles Affected94 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 PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THAT THE ELECTRONIC BRAKE CONTROL MODULE AND BRAKE PRESSURE MODULATOR VALVE FOR THE 2-MODE HYBRID UTILITIES AND TRUCKS ARE NOW OFF RESTRICTION THROUGH THE GENERAL MOTORS TECH

Affected Vehicles

MakeModelYearComponent
CADILLAC ESCALADE 2013 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
CADILLAC ESCALADE 2013 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
CADILLAC ESCALADE EXT 2013 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
CADILLAC ESCALADE EXT 2013 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
GMC SIERRA 1500 2013 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
GMC SIERRA 1500 2013 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
GMC SIERRA DENALI 2013 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
GMC SIERRA DENALI 2013 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
CHEVROLET SILVERADO 1500 2013 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
CHEVROLET SILVERADO 1500 2013 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
CHEVROLET TAHOE 2013 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
CHEVROLET TAHOE 2013 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
GMC YUKON 2013 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
GMC YUKON 2013 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
GMC YUKON DENALI 2013 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
GMC YUKON DENALI 2013 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
GMC YUKON XL 2013 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
GMC YUKON XL 2013 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
CADILLAC ESCALADE 2012 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
CADILLAC ESCALADE 2012 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
CADILLAC ESCALADE ESV 2012 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
CADILLAC ESCALADE ESV 2012 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
CADILLAC ESCALADE EXT 2012 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
CADILLAC ESCALADE EXT 2012 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
GMC SIERRA 1500 2012 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
GMC SIERRA 1500 2012 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
GMC SIERRA DENALI 2012 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
GMC SIERRA DENALI 2012 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
CHEVROLET SILVERADO 1500 2012 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
CHEVROLET SILVERADO 1500 2012 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
CHEVROLET TAHOE 2012 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
CHEVROLET TAHOE 2012 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
GMC YUKON 2012 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
GMC YUKON 2012 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
GMC YUKON DENALI 2012 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
GMC YUKON DENALI 2012 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
GMC YUKON XL 2012 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
GMC YUKON XL 2012 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
CADILLAC ESCALADE 2011 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
CADILLAC ESCALADE 2011 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
CADILLAC ESCALADE ESV 2011 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
CADILLAC ESCALADE ESV 2011 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
CADILLAC ESCALADE EXT 2011 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
CADILLAC ESCALADE EXT 2011 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
GMC SIERRA 1500 2011 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
GMC SIERRA 1500 2011 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
GMC SIERRA DENALI 2011 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
GMC SIERRA DENALI 2011 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
CHEVROLET SILVERADO 1500 2011 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
CHEVROLET SILVERADO 1500 2011 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
CHEVROLET TAHOE 2011 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
CHEVROLET TAHOE 2011 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
GMC YUKON 2011 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
GMC YUKON 2011 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
GMC YUKON DENALI 2011 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
GMC YUKON DENALI 2011 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
GMC YUKON XL 2011 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
GMC YUKON XL 2011 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
CADILLAC ESCALADE 2010 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
CADILLAC ESCALADE 2010 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
CADILLAC ESCALADE ESV 2010 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
CADILLAC ESCALADE ESV 2010 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
CADILLAC ESCALADE EXT 2010 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
CADILLAC ESCALADE EXT 2010 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
GMC SIERRA 1500 2010 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
GMC SIERRA 1500 2010 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
CHEVROLET SILVERADO 1500 2010 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
CHEVROLET SILVERADO 1500 2010 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
CHEVROLET TAHOE 2010 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
CHEVROLET TAHOE 2010 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
GMC YUKON DENALI 2010 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
GMC YUKON DENALI 2010 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
GMC YUKON XL 2010 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
GMC YUKON XL 2010 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
CADILLAC ESCALADE 2009 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
CADILLAC ESCALADE 2009 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
CADILLAC ESCALADE ESV 2009 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
CADILLAC ESCALADE ESV 2009 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
CADILLAC ESCALADE EXT 2009 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
CADILLAC ESCALADE EXT 2009 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
GMC SIERRA 1500 2009 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
GMC SIERRA 1500 2009 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
GMC SIERRA DENALI 2009 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
GMC SIERRA DENALI 2009 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
CHEVROLET SILVERADO 1500 2009 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
CHEVROLET SILVERADO 1500 2009 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
CHEVROLET TAHOE 2009 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
CHEVROLET TAHOE 2009 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
GMC YUKON 2009 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
GMC YUKON 2009 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
GMC YUKON DENALI 2009 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
GMC YUKON DENALI 2009 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
GMC YUKON XL 2009 042510 SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
GMC YUKON XL 2009 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE

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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 (PIT4383Q) 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.