Every now and again, when releasing the brakes, I hear a strange groaning noise. It's a bit like the sound you get when dragging furniture across a wooden floor.

If you watch this video from DCjeep you'll hear the sound at the 39 second mark.

I'm guessing it's just a rubbing noise that results from slowly releasing the brake pedal, but if anyone knows the exact reason I'd love to hear it.

 

It sounds like the noise of your pads rubbing on the rotor from pressure still being on them. Sounds normal to me.