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 ID | PIT4383Q |
| Manufacturer | CADILLAC |
| Models | ESCALADE, ESCALADE ESV, ESCALADE EXT, SIERRA 1500, SIERRA DENALI, SILVERADO 1500, TAHOE, YUKON, YUKON DENALI, YUKON XL |
| Model Years | 2009–2013 |
| Date Issued | September 22, 2016 |
| Date Added to NHTSA | May 22, 2017 |
| Component | SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE |
| Vehicles Affected | 94 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
| Make | Model | Year | Component |
|---|---|---|---|
| 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 |
Related CADILLAC Recalls
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.