One problem related to engine belts and pulleys has been reported for the 2013 Chevrolet Volt. The most recently reported issues are listed below.
1) passenger air bag notices keeps coming on despite there being no passenger. Only goes away when I buckle the seatbelt 2)passenger seatbelt warning keeps coming on, only way to stop it is by buckling seatbelt 3)airbar ligtht goes on and off. Will indicate it needs service and then go away for a day or two before coming back on. 4) drive rotor bearing. Had it repaired and within a few months started making same noises again. Common issue with early generation Volts based on research.