The contact owns a 2014 Chevrolet Silverado 1500. The contact stated while driving at various speeds, the message "Service Trailer Brakes" was displayed. The contact stated that the failure occurred whether hauling a trailer or not. The contact stated that the failure had been occurring more frequently. The vehicle was taken to the dealer, where an unknown electronic trailer hitch part was replaced; however, the failure persisted. The vehicle was not repaired. The contact related the failure to TSB Number: 14515. The manufacturer was not notified of the failure. The failure mileage was approximately 50,000.

- Concord, NH, USA

The contact owns a 2014 Chevrolet Silverado 1500. The contact stated that while operating the vehicle, the -??Service Trailer Brake System" message was constantly displayed. The contact indicated that while the message was displayed, the speedometer and instrument cluster gauges were inoperable. The cause of the failure was not yet determined. The local dealer was notified, and a service appointment was scheduled. The manufacturer was not yet notified of the failure. The failure mileage was 69,000.

- Charlestown, IN, USA

The contact owns a 2014 Chevrolet Silverado 1500. The contact stated while driving at an undisclosed speed, the trailer brake warning light was illuminated. The vehicle was taken to an unknown dealer, and the dealer replaced the trailer brake switch; however, the failure recurred. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 102,000.

- Bellevue, NE, USA

The contact owns a 2014 Chevrolet Silverado 1500. The contact stated while driving at an undisclosed speed, the service trailer system dismiss message displayed on the instrument panel. The vehicle was not taken to be diagnosed or repaired. Neither the dealer nor the manufacturer was notified of the failure. The failure mileage was approximately 130,000.

- Cincinnati, OH, USA