NHTSA Complaint #11552780 — 2020 CHEVROLET SILVERADO 3500

This problem concerns faulty emergency brakes. The issue was discovered in the driveway, when I engaged the parking brake with the vehicle in park and my foot on the brake. The Service Emergency Brake light came on and stayed on. When the problem was investigated at the dealership, it was found that the brake pad abradable material had delaminated from the brake shoe and was floating loose inside the drum. This same condition was found on 3 of the 4 brake shoes. Based on the appearance of the parts it did no appear they fell off when the parking brake was engaged, but had been loose for some time. With loose parts floating inside the brake drum sooner or later they will move and could lock up the rear wheel. The Chevrolet service department did not seem to be concerned with condition. A big concern is that the parking brake needs to be engaged to discover the issue. Many people rarely if ever engage their parking brake and could be driving around with loose parts in their wheels. The fact that this happened in just three years indicates the parts were produced with a faulty bond material. The abradable should never just fall off. On a backup safety system that is required on all vehicles, this issue should be taken more seriously by the manufacturer