ABS Light Due to Poor Electrical Ground Under the Battery Tray on Chevrolet Silverado 2500 HD

Problem Description and Possible Solution

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.

Problem Data
RepairPal Verified
Average mileage: 123,200 (50,000–226,000)
8 model years affected: 2001, 2002, 2003, 2004, more2005, 2006, 2007, 2009
20 people reported this problem
Viewing 1 - 10 of 10 comments
Same problem. But can't find ground under battery tray. 6.6l duramax
72k miles.
ABS and BRAKE light on, brake light is on and off sometimes but if you clear the codes they stay off till highway speeds then back on again. Still not fixed re did ground under driver side battery tray is next
AB'S light on continously. Cleaned ground on frame below drivers door, not a cure. Tomorrow check battery ground, diesel with two batteries.
ABS light on.. no apparent issues. sensors are good, all brakes and rotors brand new.
ABS light flickers on and off. Was told that speed sensor was bad, so replaced it and still have the same problem. not yet fixed
abs light flickers off and on
Replaced new front wheel hubs. Cant get a code because cig lighter don't work. Still have abs light on
antilock brake systen light came on It is not fixed
Abs light stay illiminated and service brake system message is intermittant