I originally complained to the dealership about this problem, within months of buying this brand new vehicle off the lot, about a smell coming thru the vents. A year or so later, two water pumps replaced, a radiator needs to be replaced, and now and a condenser is causing the fumes to come inside the vehicle. I got this vehicle in July 2014 ....a 2014 Chevy Sonic Lt Turbo brand new shut down on me a few times on the road and highways, I almost lost my life between the months of November 2015 to February 2016.