Give the spokes the old pluck test. You should be able to hear a similar tone from each spoke on the same side of the wheel. It's a basic, but very good place to start. I have a 2010 Crosstrail and so far I have not had a problem. I also just two weeks ago, picked up a Diamondback Insight 2 from BikeNashbar. It was shipped un-assembled. The first thing I noticed was the wheels were out of true. So I started with the pluck test. Just about each spoke that needed to be touched to true the wheel, showed up via the pluck. There are Youtube videos showing this approach if you're unfamiliar.