Subaru Crosstrek 2017 Owner's Manual page 522

11-44
Maintenance and service/Replacing key battery
3. Open the transmitter case by releasing
the hooks.
1) Negative (−) side facing up
4. Replace the old battery with a new
battery (type CR1620 or equivalent) mak-
ing 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
six times to synchronize the unit.
button