I've had my 2010 Aveo sedan now for 3 months and im afraid that I broke it a while back, in that I really didn't know what the hold button did and I kinda pressed it while doing 65 on the HW I heard something like break or fall off and i ignored it because I live in vegas and you always run over ish. Soon after whenever I would have my A/C on a weird Rattling sound would come from the engine bay when i accelerated, but when the car is running with out the A/C there's no noise. Now fast forward 3 months and I now understand how to use the hold button I just went out for a drive and the sound returned when accelerating just liek when the A/C is on. Idk what I did but i like the car Anyone have any ideas of how bad I messed it up?