The contact owns a 2019 Chevrolet Silverado 2500. The contact stated while driving at 30-35 MPH with a 2017 Heartland Bighorn trailer hitched to the vehicle, the message -€œCheck Trailer Wiring-€ was displayed. The brake pedal was depressed, however, the trailer brakes failed to respond and the trailer did not slow down as intended. The contact stated that the failure had been reoccurring for an extended period of time while driving. The contact stated that the failure persisted for 4 hours while driving at 60 MPH. The contact stated that several unknown repairs had been completed on the trailer. However, the failure persisted. The vehicle was taken to the dealer where it was diagnosed that no issues were found. The vehicle was then taken to an independent mechanic who was unable to duplicate the failure. The vehicle was taken to a second dealer Graff Chevy Durand (9009 Lansing Rd, Durand, MI 48429), where it was diagnosed that no issues were found. The contact stated the Pollak 7-Way Plug Connector was installed on the vehicle under GM Technical Service Bulletin Number :PIT5311E. However, the failure persisted. The contact stated that the failure was intermittent, which made it difficult to diagnose. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 11,000. The contact stated that they paid for repairs on the trailer but feels that the issue is coming from the truck too.

- Tucson, AZ, USA

I purchased a brand new Chevy Silverado 2500hd at the end of 2019. Periodically Service Trailer Brake System would pop up throughout the beginning, and soon became an increasing event causing my trailer brakes to stop working while towing heavy loads. This is an extreme safety hazard, not only for the driver, but for others on the road as well. How this isn't a recall already for the mere fact of the distracting chime, light alone the fact that the trailer brakes become inoperable at a moments notice is beyond me. If and when an accident occurs due to the nature of this issue, Chevrolet should be held fully responsible if a formal recall is not made within a timely manner.

- Madbury, NH, USA

At liwer speeds my truck keeps surging forward. I only have 9500 miles on it and is one year old. Under normal braking it works fine, but at lower speeds it is a bear to stop. Yesterday I almost missed my turn because it surged forward, and last week it overshot the intersection by a few feet because it surged ahead.

- Pahrump, NV, USA

Brakes on truck was engaging without pressing on the brake pedal. This worn down the brake pads. Brake company said the pump failed causing this to happen.

- Memphis, TN, USA