Access Key Battery

WARNING: This page is about a different car, the 2016 Subaru Outback and 2016 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: To prevent static electricity damage to the access key printed circuit board, touch the steel area of building with hand to discharge static electricity carried on body or clothes before disassembling the access key.

Push the lock button and remove the mechanical key from the access key.
Insert a flat tip screwdriver end wrapped with insulating tape etc. into the slit (a) of the access key to open the case.

Fig 1: Opening Access Key Case
Courtesy of SUBARU OF AMERICA, INC.
Insert a flat tip screwdriver wrapped with insulating tape, and while holding the upper side of the battery (a), remove the battery (a) from the case.

Fig 2: Removing Access Key Battery From Case
Courtesy of SUBARU OF AMERICA, INC.