2003 Subaru Outback Owner's Manual - Page 114

Trunk lid (Sedan) D To prevent dangerous exhaust gas from entering the vehicle, always keep the trunk lid closed while driving. D Help prevent young children from locking themselves in the trunk. When leaving the vehicle, either close all windows and lock all doors or cancel the inside trunk lid release. Also make certain that the trunk is closed. On hot or sunny days, the temperature in the trunk could quickly become high enough to cause death or serious heat-related injuries including brain damage, particularly for small children. B To open and close the trunk lid from outside WARNING HBF013CB To open the trunk lid from outside, insert the key and turn it clockwise. To close the trunk lid, lightly press the trunk lid down until the latch engages. 2-24