# Service bulletin GCUS\-3\-567 A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned. - Type: Service bulletin - NHTSA id: 10126061 - Published by NHTSA: 2017\-12\-22 - Manufacturer's number: GCUS\-3\-567 - Manufacturer's date: 2016\-05\-31 - NHTSA component: TRAILER HITCHES ## NHTSA's summary 15809 \- Service Parts Customer Satisfaction Program \- Certain Chevrolet Silverado LD and GMC Sierra LD model vehicles equipped with the 12,000 lb. trailering package \(RPO Z82\) may have been serviced with, or the customer sold over the counter, a trailer hitch platform that could develop cracks at the weld points over time. With heavy towing loads over thousands of miles, these cracks could potentially propagate and fatigue the welds. If the trailer hitch platform welds fatigue while the vehicle is being operated with a trailered load, that trailer could become unsecured. Trailer Hitch Platforms involved in this program were sold over the counter or used to repair various serviced vehicles. For information on involved vehicles manufactured with the identified trailer hitch platforms refer to the latest version of Customer Satisfaction Bulletin 15036. ## The document - [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2016/MC-10126061-9999.pdf) - [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2016/MC-10126061-0001.pdf) The document is the manufacturer's. This site does not hold it. ## Components Trailer hitch ## Vehicles listed - 2014 CHEVROLET SILVERADO 1500 - 2015 CHEVROLET SILVERADO 2500 - 2014 to 2015 GMC SIERRA 1500 ## Other bulletins for the same vehicles and component - [130089007A](/bulletins/10246629.md), 2023-12-11, Service bulletin: TRAILER HITCHES; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Information on Recreational, Dinghy or Flat Towing Procedure - [PIT5282B](/bulletins/10245974.md), 2023-12-04, Service bulletin: TRAILER HITCHES. Installation Of An Aftermarket Trailer Brake Controller In Lieu Of Factory Trailer Brake Controller. - [PIT5282](/bulletins/10245973.md), 2023-12-04, Service bulletin: TRAILER HITCHES. Installation Of An Aftermarket Trailer Brake Controller In Lieu Of Factory Trailer Brake Controller. - [PIT5241C](/bulletins/10245943.md), 2023-12-04, Service bulletin: TRAILER HITCHES. Adding Integrated Trailer Brake Controller RPO JL1. - [PIT5241B](/bulletins/10245942.md), 2023-12-04, Service bulletin: TRAILER HITCHES. Adding Integrated Trailer Brake Controller RPO JL1. - [PIT5228](/bulletins/10245924.md), 2023-12-04, Service bulletin: TRAILER HITCHES. Interim Aftermarket Trailer Brake Controller Harness. - [PIT4729E](/bulletins/10245308.md), 2023-11-20, Service bulletin: SERVICE BRAKES; TRAILER HITCHES. Adding Integrated Trailer Brake Controller RPO JL1. - [PIT5509K](/bulletins/10237677.md), 2023-06-13, Service bulletin: AIR BAGS; ELECTRICAL SYSTEM; TRAILER HITCHES. This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicle that may have a "Check Trailer Wiring" or "Service Trailer Brake System? message on the Driver Information Center when a trailer is connected to the vehicle. Diagnostic Trouble Code C1114 set in the Chassis Control Module. Chassis Control Module has to determine the type of trailer brake system that is being used. The Chassis Control Module can be sensitive to a variety of trailer wiring issues. The technician will need to make a trailer tester using Electric Trailer Brake Magnets and 7\-way trailer connector to determine if it is a vehicle or trailer issue. If the concern is not duplicated with the tester installed, the vehicle is operating correctly and the focus should be on the trailer wiring or 7 way connector. - [PIT5509J](/bulletins/10236167.md), 2023-05-15, Service bulletin: ELECTRICAL SYSTEM; TRAILER HITCHES. This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicle that may have a "Check Trailer Wiring" or "Service Trailer Brake System? message on the Driver Information Center when a trailer is connected to the vehicle. Diagnostic Trouble Code C1114 set in the Chassis Control Module. Chassis Control Module has to determine the type of trailer brake system that is being used. The Chassis Control Module can be sensitive to a variety of trailer wiring issues. The technician will need to make a trailer tester using Electric Trailer Brake Magnets and 7\-way trailer connector to determine if it is a vehicle or trailer issue. If the concern is not duplicated with the tester installed, the vehicle is operating correctly and the focus should be on the trailer wiring or 7 way connector. - [PIT5509H](/bulletins/10201253.md), 2021-09-13, Service bulletin: AIR BAGS; TRAILER HITCHES; ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicle that may have a "Check Trailer Wiring" or "Service Trailer Brake System? message on the Driver Information Center when a trailer is connected to the vehicle. Diagnostic Trouble Code C1114 set in the Chassis Control Module. Chassis Control Module has to determine the type of trailer brake system that is being used. The Chassis Control Module can be sensitive to a variety of trailer wiring issues. The technician will need to make a trailer tester using Electric Trailer Brake Magnets and 7\-way trailer connector to determine if it is a vehicle or trailer issue. If the concern is not duplicated with the tester installed, the vehicle is operating correctly and the focus should be on the trailer wiring or 7 way connector. JSON: [/v1/bulletins/10126061](/v1/bulletins/10126061) [Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20GCUS-3-567&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10126061&vehicle=Service%20bulletin%20GCUS-3-567)