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.Google+
Car Problem Reports
Chevrolet Avalanche 1500 ABS Light Due to Poor Electrical Ground Under the Battery Tray
Chevrolet Avalanche 1500 Problem
Average Mileage: 124,500 mi (92,000 mi - 149,000 mi)
My ABS/Brake lights come on at some point after my truck is started. The DIC instructs to service brakes soon. There is nothing wrong with my brakes. I am hoping this is the problem and an easy fix!!
Visitor, 2005 Chevrolet Avalanche 1500, 149,000 mi
When I go over bumps my ABS light come on and when I turn the truck off it goes off untill the next time I hit bumps in the road.
Visitor, 2004 Chevrolet Avalanche 1500, 115,000 mi
Lights come on and DIC indicates a problem "Service Brake System".
Visitor, 2003 Chevrolet Avalanche 1500, 142,000 mi
not fixed also electrical problem, dash lights all going on, gauges are going to zero. ABS braking on all the time. Battery drains also. Put new battery in. Still drained. Curently diconected. reading up on complaints. starts and runs for about 1 second. Trying to reprogram. Just read about it.