Yes, that's it !!! I just bought a 32mm, 6 point socket....took out my handy torque wrench and torqued the axle nuts to 185 ft.lbs. Both my nuts where around 100 - 110. Socket only cost me $5 at Harbor Freight.I was reading over your thread and I too, have a 2013 Volt and have noticed a click every time I brake and accelerate. Sounds like a relay clicking somewhere in the dash. Is this the click that yours had? Also, what did you do to fix it?