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.
ABS Light Due to Poor Electrical Ground Under the Battery Tray on Chevrolet Avalanche 1500
Average mileage: 142,500 (65,000–211,000)
17 people reported this problem
8 people shared problem details
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!!
2005 Chevrolet Avalanche 1500149,000Visitor
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.
2003 Chevrolet Avalanche 150065,000Visitor
abs and brake light come on while driving
2002 Chevrolet Avalanche 1500148,000Visitor
The ABS and Break light comes on and we cleaned the ground, but that did not work for more than a couple days. The light continues to come on, sometimes immediately, sometimes after 1+ hours of driving. If it is bumpy it seems to come on quickly. The problem persists.
2003 Chevrolet Avalanche 1500142,000Visitor
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.
2004 Chevrolet Avalanche 1500115,000Visitor
Lights come on and DIC indicates a problem "Service Brake System".
2002 Chevrolet Avalanche 1500158,000Visitor
Abs light and brake light are on I will try cleaning the ground wires in the engine bay
2002 Chevrolet Avalanche 1500150,000Visitor
abs on constantly and emergency brake intermitten
Started and drove fine in the morning - no indication of weak battery - two hours later, comple...
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