TSB: CHEVROLET SIERRA, SIERRA 1500, SIERRA 3500, SILVERADO, SILVERADO 1500, SILVERADO 2500, SUBURBAN, TAHOE, YUKON (2014-2018)
Bulletin PIT5521A - September 25, 2017
Bulletin Details
| Bulletin ID | PIT5521A |
| Manufacturer | CHEVROLET |
| Models | SIERRA, SIERRA 1500, SIERRA 3500, SILVERADO, SILVERADO 1500, SILVERADO 2500, SUBURBAN, TAHOE, YUKON |
| Model Years | 2014-2018 |
| Date Issued | September 25, 2017 |
| Date Added to NHTSA | April 8, 2019 |
| Component | ENGINE (PWS) |
| Vehicles Affected | 66 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 communicates a Diagnostic Tip for a Service Trailer Brake Message with DTC C111B C1112 C1113 C1114 advising to address any battery issues first before any in depth diagnostics are done.
Affected Vehicles
| Make | Model | Year | Component |
|---|---|---|---|
| GMC | SIERRA 3500 | 2018 | 060000 ENGINE (PWS) |
| GMC | SIERRA 3500 | 2018 | 114005 ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL |
| GMC | SIERRA 3500 | 2018 | 111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY |
| CHEVROLET | SILVERADO 2500 | 2018 | 111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY |
| CHEVROLET | SILVERADO 2500 | 2018 | 114005 ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL |
| CHEVROLET | SILVERADO 2500 | 2018 | 060000 ENGINE (PWS) |
| CHEVROLET | SUBURBAN | 2018 | 060000 ENGINE (PWS) |
| CHEVROLET | SUBURBAN | 2018 | 114005 ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL |
| CHEVROLET | SUBURBAN | 2018 | 111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY |
| CHEVROLET | TAHOE | 2018 | 060000 ENGINE (PWS) |
| CHEVROLET | TAHOE | 2018 | 114005 ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL |
| CHEVROLET | TAHOE | 2018 | 111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY |
| GMC | YUKON | 2018 | 060000 ENGINE (PWS) |
| GMC | YUKON | 2018 | 111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY |
| GMC | YUKON | 2018 | 114005 ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL |
| GMC | SIERRA | 2017 | 060000 ENGINE (PWS) |
| GMC | SIERRA | 2017 | 111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY |
| GMC | SIERRA | 2017 | 114005 ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL |
| CHEVROLET | SILVERADO | 2017 | 060000 ENGINE (PWS) |
| CHEVROLET | SILVERADO | 2017 | 114005 ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL |
| CHEVROLET | SILVERADO | 2017 | 111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY |
| CHEVROLET | SUBURBAN | 2017 | 060000 ENGINE (PWS) |
| CHEVROLET | SUBURBAN | 2017 | 114005 ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL |
| CHEVROLET | SUBURBAN | 2017 | 111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY |
| CHEVROLET | TAHOE | 2017 | 060000 ENGINE (PWS) |
| CHEVROLET | TAHOE | 2017 | 114005 ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL |
| CHEVROLET | TAHOE | 2017 | 111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY |
| GMC | YUKON | 2017 | 060000 ENGINE (PWS) |
| GMC | YUKON | 2017 | 114005 ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL |
| GMC | YUKON | 2017 | 111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY |
| GMC | SIERRA 1500 | 2016 | 111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY |
| GMC | SIERRA 1500 | 2016 | 060000 ENGINE (PWS) |
| GMC | SIERRA 1500 | 2016 | 114005 ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL |
| CHEVROLET | SILVERADO 2500 | 2016 | 060000 ENGINE (PWS) |
| CHEVROLET | SILVERADO 2500 | 2016 | 114005 ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL |
| CHEVROLET | SILVERADO 2500 | 2016 | 111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY |
| CHEVROLET | SUBURBAN | 2016 | 060000 ENGINE (PWS) |
| CHEVROLET | SUBURBAN | 2016 | 114005 ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL |
| CHEVROLET | SUBURBAN | 2016 | 111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY |
| CHEVROLET | TAHOE | 2016 | 060000 ENGINE (PWS) |
| CHEVROLET | TAHOE | 2016 | 114005 ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL |
| CHEVROLET | TAHOE | 2016 | 111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY |
| GMC | YUKON | 2016 | 060000 ENGINE (PWS) |
| GMC | YUKON | 2016 | 114005 ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL |
| GMC | YUKON | 2016 | 111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY |
| GMC | SIERRA 1500 | 2015 | 060000 ENGINE (PWS) |
| GMC | SIERRA 1500 | 2015 | 111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY |
| GMC | SIERRA 1500 | 2015 | 114005 ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL |
| CHEVROLET | SILVERADO 2500 | 2015 | 111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY |
| CHEVROLET | SILVERADO 2500 | 2015 | 114005 ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL |
| CHEVROLET | SILVERADO 2500 | 2015 | 060000 ENGINE (PWS) |
| CHEVROLET | SUBURBAN | 2015 | 060000 ENGINE (PWS) |
| CHEVROLET | SUBURBAN | 2015 | 114005 ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL |
| CHEVROLET | SUBURBAN | 2015 | 111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY |
| CHEVROLET | TAHOE | 2015 | 060000 ENGINE (PWS) |
| CHEVROLET | TAHOE | 2015 | 114005 ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL |
| CHEVROLET | TAHOE | 2015 | 111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY |
| GMC | YUKON | 2015 | 060000 ENGINE (PWS) |
| GMC | YUKON | 2015 | 114005 ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL |
| GMC | YUKON | 2015 | 111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY |
| GMC | SIERRA 1500 | 2014 | 060000 ENGINE (PWS) |
| GMC | SIERRA 1500 | 2014 | 114005 ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL |
| GMC | SIERRA 1500 | 2014 | 111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY |
| CHEVROLET | SILVERADO 1500 | 2014 | 114005 ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL |
| CHEVROLET | SILVERADO 1500 | 2014 | 060000 ENGINE (PWS) |
| CHEVROLET | SILVERADO 1500 | 2014 | 111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY |
Related CHEVROLET Recalls
What Should You Do?
If your vehicle is affected by this TSB, contact your authorized CHEVROLET dealer. Bring this bulletin ID (PIT5521A) 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.