Description: Maximize the effectiveness of your vehicle?s brakes with a Cadillac Accessories Proportional Brake Control and Adapter Harness. The Proportional Brake Control tells your trailer?s brake system when to brake and how much pressure to apply while towed. Kit includes a quick plug with 24" pigtails. Non-GM Warranty. Limited Warranty by CURT? Group 10-years. For more information contact your dealer.