2008 Subaru Impreza Owner's Manual - Page 219
2008 Subaru Impreza Manual
Page 219 highlights
Interior equipment 6-11 WARNING Do not place anything on the extended cover. Putting excessive weight on the extended cover can break it and an object on the cover could tumble forward in the event of a sudden stop or collision. This could cause serious injury. & To remove the cover 1. Rewind the cover. & To install the cover housing 1. Shorten the bar. CAUTION Be careful not to scratch the rear gate stays while extending and rewinding the cover. Scratches on the stays could cause leakage of gas from the stays, which may result in their inability to hold the rear gate open. 2. Push the bar to the right side and shorten the bar. 3. Take it off the retainer. 2. Insert the projections located on the both ends of the sleeve into the recesses of the retainers.