ABS Light Due to Poor Electrical Ground Under the Battery Tray on GMC Sierra 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.

RepairPal Verified
Average mileage: 149,875 (60,500–264,000)
9 model years affected: 1999, 2000, 2001, 2002, more2003, 2004, 2005, 2006, 2007
14 people reported this problem
2 people shared problem details
1999 GMC Sierra 1500264,000
ABS and or brake light randomly appears then goes away
1 person likes thisFlag inappropiate
ABS dash lite comes on sometimes while driving on roads. Hit a bump and the lite may come on or go off. Turnong inig. key will sometimes reset lite to off. May be corrosion problems with speed sensors????
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