As of 2015, an owner can find a Subaru owner's manual that contains maintenance information on the Subaru website. To access the manuals, click on the Customer Support link in the navigation bar at the top of the page.
Scroll down to the Quick Links section, and click on Owners Manuals. Select the vehicle and its year and model, or type in its Vehicle Identification Number, and click on the Get Manuals button. The various sections of the owner's manual are displayed in separate PDF files. Go to the maintenance file to access the maintenance information for the selected vehicle.