One problem related to brake sensor has been reported for the 2004 Chevrolet Silverado 2500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Chevrolet Silverado 2500 based on all problems reported for the 2004 Silverado 2500.
Abs system activates on left front at slow roll. Normal slow stop not safe in traffic. Now happens all the time. I am an automotive tech. At collision restoration in fairfield NJ. . The sensor is removable and nd replaceable . . . If. . . Gm would sell it separately,but they want you to spend $300 for a hub assembly (that you don't need)to get the sensor.