Hi everyone, first time poster.
Im posting to warn everone about an issue with the late model (2012-2017) Foresters and possibly all Subaru's built on that chassis.
The problem is the area under the spare tire is rusting (you have to remove the spare to see it) I have rust and peeling paint and my car was only a month old when i discovered it! As far a i can tell from discussions I've had on another forum, the two rubber plugs in the bottom of the round depression in the trunk (spare tire well) are letting water in. Some cars only have dirt and water stains but some are rusting at a surprising rate. I would venture to guess it is a paint quality issue. A properly painted metal surface should not rust when it comes in contact with water....ever. Here are some pics of my spare tire well. ...keep in mind the car was only a month old when i noticed it. Pull your spares and take a peek and use some silacone,rtv,gasket maker to seal it when you replace it. Hope you have better luck than I did