Subaru 2016 Outback Owner's Manual page 519

11-52
Maintenance and service/Replacing battery
battery (Type CR1620 or equivalent)
making sure to install the new battery with
the negative (−) side facing up.
5. Put together the transmitter case by
fitting the hooks on the case.
6. Reinstall the transmitter case in the
key head.
7. Refit the removed half of the key head.
After the battery is replaced, the trans-
mitter must be synchronized with the
remote keyless entry system's control
unit. Press either the " " or " " button
six times to synchronize the unit.