One or both rear wheel bearings may develop an abnormal noise and require replacement.Google+
Car Problem Reports
Chevrolet Aveo Noise From Rear Wheel Bearings
Chevrolet Aveo Problem
Average Mileage: 84,632 mi (40,000 mi - 158,689 mi)
Visitor, 2004 Chevrolet Aveo, 72,000 mi
Rear wheel bearings worn and being replaced as I type this.
Visitor, 2004 Chevrolet Aveo, 125,000 mi
planning on replacing as soon as possible.
Visitor, 2009 Chevrolet Aveo, 76,000 mi
Driver side back wheel bearing going out.
Visitor, 2008 Chevrolet Aveo, 68,000 mi
front left wheel bearing and both back wheel bearins went bad
Visitor, 2004 Chevrolet Aveo, 100,000 mi
Right Rear wheel bearing fell apart. looks like 2 pieces but its suppose to be 1.
Visitor, 2005 Chevrolet Aveo, 80,000 mi
Horrible rattling noise from my under carraige, the wheel base feels very loose
Visitor, 2004 Chevrolet Aveo, 158,689 mi
I have replaced my rear wheel bearings 3 times, about every 40,000 miles.
loud banging rt rear when going aroung bend if road ruff