A Saturn Outlook’s battery location is underneath the floor behind the passenger seat. If you’re sitting in the second row of seats behind the passenger, your feet will sit right on top of where the battery is located.
In order to view your battery, first remove the floor mat behind the passenger seat to access a small floor panel (like a trap door) with a knob. Pull upwards on the knob to remove the panel, and you’ll then be able to access your battery.