Subaru 2001 Impreza Owner's Manual page 48

B To open the trunk lid from inside (vehicle with trunk lid release
lever)
HG0003
Pull the trunk lid release lever upward.
n To cancel the trunk lid release
OM-H0018
The inside trunk lid release can be cancelled to help prevent unautho-
rized entry into the trunk. To cancel the trunk lid release, set the lid
release cancel lever (located on the inside of the trunk lid, mounted to
the trunk lid latch) to the "CANCEL" position. When this lock is in the
"CANCEL" position, the trunk can be opened only with the key.
1-26