Subaru BRZ 2018 Owner's Manual page 92

1-6. Security system
■
When the battery is disconnected
Be sure to deactivate the alarm system.
If the battery is disconnected before deactivating the alarm system, the
alarm may be triggered when the battery is reconnected.
■
Customization that can be configured at your SUBARU dealer
Settings (e.g. alarm system) can be changed.
(Customizable features
CAUTION
■
To ensure the system operates correctly
Do not modify or remove the system. If modified or removed, the proper
operation of the system cannot be guaranteed.
90
P. 522)