Porsche Boxster Owner's Manual page 248

Alarm system, central locking
The status of the central locking and alarm system
is not changed by disconnecting the battery.
When the battery is disconnected, the alarm
system ceases to function.
Central locking overload protection
If the central locking system is operated more
than ten times within a minute, further operation is
blocked for 30 seconds.
246
Practical Tips, Emergency Service
Load switch-off after 2 hours or 7 days
If the ignition key is removed, loads which are
switched on or are in standby mode (such as the
luggage compartment light and interior light) are
automatically switched off after approx. 2 hours.
The Radio/PCM is automatically switched off after
approx. 10 minutes.
If the vehicle is not started or unlocked with the
remote control within 7 days, the remote control
standby function is switched off (to save the
vehicle battery).
1. In this case, unlock the driver's door with the
key at the door lock.
Leave the door closed in order to prevent the
alarm system from being triggered.
2. Press button 1 on the remote control.
The remote control is now activated again.