This is an old thread, but I will add that my 2010 Edge (front wheel drive) [5400 miles] just had the left rear wheel bearing replaced. We were returning from a long trip when 5 miles from home a whining sound started up. But about the same time we experienced a failure of the transmission to shift into high gear. All the gremlins struck at once I guess. Anyway, we thought it was all trans related.
Took it to the dealer next morning and they kept it all day saying they couldn't replicate, but found a TSP on the trans and had ordered a part. After 6 days, I was getting more skeptical of it all being the same problem so went back and nicely 'demanded' that the service manager drive it. First thing out on the road he says 'you have a bad left wheel bearing'. Then later in the showroom again, said it had been a major problem with 08 and 09 Edges. They got it in for service a couple days later when the trans part arrived, fixed both and all seems well.
So when does the right bearing go out??
BJ