1999 Subaru Forester Owner's Manual - Page 46

D The siren will emit a number of chirps. Refer to the chart (below) to identify the violated zone. 1-20 Chirps 1 2 4 Triggered Zone Shock Sensor Ignition turned on Door or Rear gate B Starter interrupt Starter interrupt is an automatic procedure. The starter is disabled any time the system is armed, or if the Passive starter interrupt feature is enabled and the passive arm time is expired. The vehicle also will not start if power is disconnected from the alarm module. How starter interrupt works The alarm system interrupts the signal from the ignition key to the vehicle's starter when Starter interrupt is activated. If you attempt to start the vehicle, the dash indicator will turn on as usual, but the starter will not "crank", or turn over. Passive starter interrupt If the Passive Starter Interrupt option has been activated by your SUBARU dealer, the starter will be automatically disabled one minute after you turn off the vehicle ignition, whether or not you arm the security system with your remote transmitter. Possible situations with starter interrupt or Passive starter interrupt If the Passive Starter Interrupt Option is enabled on your Security System: D If you leave the vehicle for a short amount of time, to refuel or go to the car wash for example, always engage the Valet Mode before exiting your vehicle. If you forget to engage Valet Mode, the Passive Starter Interrupt will engage and the vehicle will not start when you return. To enable the vehicle to start, simply press "UNLOCK" on