Manual Latch Release for Power Liftgate
WARNING: This page is about a different car, the 2008 Mercury Sable, 2008 Ford Taurus X, and 2008 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.
To manually open the power liftgate, due to power latch failure, remove the latch access cover located on the lower center of the liftgate trim panel. Reach in on the right side of opening, and push down on the manual latch release lever.