Well Ive been able to reproduce the noise and so has my wife.

Basically its a clunk, clunk, clunk until we build up speed in a parking lot. It only does it under about 3 MPH and is a TINY bit worse when we hit the brakes a little bit. It doesnt matter how long the car has been drove or if there are people in the back seat itll still make the clunk.

Has anybody else had this go on?

Nobody has noticed this on their cars?

The abs system makes a noise like this, usually in park or when beginning to drive.

Ive heard this in my Malibu as well as an Eqinox which was really loud due to the open cargo area.

It sounds more like three successives louds clicks.

Ours doesnt do it in park at all.

Whenever we leave a parking spot and just let the car coast itll make the noise.