ABS Light Due to Poor Electrical Ground Under the Battery Tray on GMC Yukon XL Denali

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: (–)
6 model years affected: 2001, 2002, 2003, 2004, more2005, 2006
6 people reported this problem
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