I was waiting for food with my car running and I came back to a car that had turned off and a chlorine-like smell. Blinkers and all that seemed to work fine but the car wasnt starting so I concluded it was the starter fuse. Turns out I was right and when I replaced the fuse the car started right when I put it in but then I also saw a ton of smoke coming from underneath the fuse box. I quickly pulled the fuse and it stopped. The fuse I replaced was the 15A AM2 "IGN" fuse, ignition system fuse. Any ideas what this could be?
Right. As there is no starter, there is of course no "starter fuse", but the cooling pump motor for the hybrid electronics does occasionally fail in such a way that the magic smoke escapes, and when that happens it blows the AM2 fuse, which also supplies power to a few other things needed for the car to run. There is a connector you can unplug so that AM2 won't keep blowing while you get around to replacing the stinky pump. The pump cools the electronics; drive gently while it's unplugged.
Buy an OEM inverter cooling pump from a dealership for best results. A cheap aftermarket pump will only last a year or less.