It does help to read manual!!

turbodog

You guys are kidding, right? From page 3-18 of the owner's manual:

SECONDARY REAR HATCH RELEASE
The secondary rear hatch release mechanism
allows opening the rear hatch in the event of
discharged battery or emergency.
The release handle is located under the cargo
room floor. To open the rear hatch from the
passenger compartment, perform the following
procedure.
1. Remove the cargo floor mat.
2. Find the rear hatch release handle *1 as
shown in the illustration.
3. Free the release handle that is fixed with
velcro.
4. Firmly pull the release handle until the rear
hatch releases.