I'm coming up on 1 year old this month for my sedan. I have an ongoing journal thread, but I thought it would be interesting to compile a list of similar issues that other owners have gone through the first ~12 months of ownership. Here are mine with ~17,000 miles on the odometer.
Front Bumper Crack
ABS/VDC/Hill Assist Lights (UPDATE: x2)
Rear Deck Rattles
Crazy Right Turn Signal
Subaru paint quality. The more I look at her, the more she chips!
And if you want to get really particular, the rear LED taillight went out a little too soon.
All in all, this first year has been a blast and I can't wait for many, many more. How what about the rest of you?