I just bought a 2014 Volt 2 weeks ago with 46k miles. About 1 week after owning it I started to hear a clicking noise from the front end during acceleration and braking. Thanks to this wonderful forum I had a keen idea that it was the interface at the hub with the cv axle. Armed with this knowledge I went to the dealer knowing my warranty should cover it under the drivetrain warranty. The dealer calls me up to explain the exact issue, which was exactly what I suspected. He then tells me with parts and labor it was to cost $423. I then asked shouldn't it be under warranty. He says no . So I said "its part of the drivetrain". "Axles are under the drivetrain, you can't tell me the drive train stops halfway down the axle" he backpedalled a bit and said let me recheck the warranty coverage. I looked at my phone and he called me back in exactly 2 minutes. He must be a speed reader. He says " oh yes axles are under the warranty. I'll replace both front axles to make sure it is fully taken care of. it will be 100% covered"
So my sincerest thanks to all of you for sharing your experiences. You saved me $423 and a few days of heartburn.
If you haven't been told before let me say it now. "Without your input the rest of us would be that much worse off."