A poor electrical ground under the battery tray may cause the ABS warning light to illuminate. Our technicians tell us that cleaning and properly securing this ground and also the main ABS ground on the frame rail below the drivers door may be necessary.
Car Problem Reports
GMC Sierra 1500 ABS Light Due to Poor Electrical Ground Under the Battery Tray
GMC Sierra 1500 Problem
Average Mileage: 112,750 mi (60,500 mi - 165,000 mi)