ABS Light Due to Poor Electrical Ground Under the Battery Tray on Chevrolet Avalanche 1500

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.

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Average mileage: 142,500 (65,000–211,000)
5 model years affected: 2002, 2003, 2004, 2005, more2006
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!!
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.
abs and brake light come on while driving
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.
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.
Lights come on and DIC indicates a problem "Service Brake System".
Abs light and brake light are on I will try cleaning the ground wires in the engine bay
abs on constantly and emergency brake intermitten
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