Subaru CROSSTREK HYBRID 2016 Owner's Manual page 495

11-46
Maintenance and service/Replacing key battery
2. Wrap a flat-head screwdriver with vinyl
tape or a cloth, and insert it in the gap to
remove the cover.
3. Take out the battery using a flat-head
screwdriver with vinyl tape or a cloth.
4. Insert a new battery with its positive (+)
side facing upward as shown in the figure.
5. Attach the cover to the access key by
fitting the projections and recesses to-
gether.