The power door lock actuators may become slow to operate or stop working completely and require replacement.
2011 Chevrolet Suburban 1500 Problem Reports
Most Reported 2011 Chevrolet Suburban 1500 Problem Reports
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Acid may leak from the battery at the cable connections, resulting in corrosion on the battery cable ends and in the battery tray. A Leaking battery should be replaced and the cables thoroughly cleaned or replaced if necessary.