I know brakes have been discussed and there is a TSB out on the rear pads. I haven't seen this one yet. Yesterday and today when backing out to leave for work, a noise similar to electronic feedback has been coming from the front. After a time or two using the brakes, the sound is gone. And, It only does it when backing, not going forward. Sound familiar to anyone? Of course I get the little grindy noise from the rear, but it's gone almost immediately.

 

I had a similar issue on my 04 althought I don't know if it sounded like "electronic feedback". During the winter my car would make this horrendous noise when I applied the brakes when I backed out of my driveway onto the road. There is a TSB regarding the mounting bracket for this problem.