Subaru 2003 Legacy - Manual (Page 118)

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3. Move the release handle, from outside the vehicle, in the direction
of the arrow to check if the latch is released.
HG2018BA
If the latch is not released, contact your SUBARU dealer.
In that case, use the key to release the latch, then close the trunk lid.
Also, if the movements of the release handle feel restricted or not en-
tirely smooth during operation, or the handle and/or handle base is
cracked, contact your SUBARU dealer.