[radroach]

Windows freezing stuck in the winter. There is a process for resetting the window switches after they get stuck. You'll know there's a fault if you press the window switch, and they blink back at you.

Wheel stud quality on my '13 was something to find fault with. Stripped 3 of them in one day last year, upgraded to ARP chromoly studs after that because i don't want to strip a stud on a track day etc.

Condensation in the tail light. Everybody has this on older models, I think some people have found a fix.

Rust forming on the window pillars. Newer models seemed to have fixed it with foam inserts but it might be good to check the corners around windows, perhaps fill gaps with grease.

Bumper sag. After removing / reinstalling the bumper you might find the bumper sags a bit. There are some fixes for it but its probably not to everyone's taste.

Transmission grinding when cold. I feel like this is pretty common. Usually have to work around it with double clutching, extra revving in neutral, etc. Works for me to do a few neutral revs in the morning after cold-start, then give it a jog around the block to make sure its all in good order before hitting the main road.

Clutch throw out bearing. More of an issue on older cars, bearings were packed with improper high-temperature / high load grease, burns itself up. Not sure if '15's have the issue or not.

Exhaust bolts seizing. If you're going to get any work done where your installer needs to remove the exhaust pieces, be sure to have a few extra exhaust studs on hand because the mechanic might need to cut through some bolts to get it out.