System Overview

The anti-theft system for the Saab 900 consists of an alarm and a security system controlled by a remote control unit. Two versions of the alarm are available:
1 Anti-theft alarm, which is practically identical to the earlier M95 Anti-Theft Alarm 900.
2 Anti-theft alarm with VSS (Vehicle Security System), which is a further development of earlier alarm designs and constitutes a more complete anti-theft alarm system.
Although most of the functions are identical in both alarm Versions, there are some Important differences.
"Anti-theft alarm" and "Anti-theft alarm with VSS" are headings in above descriptions of specific functions for the relevant alarm system.

The anti-theft alarm is available:
- factory-fitted
- as an accessory kit (all cars are pre-wired). The anti-theft alarm with VSS is not available as an accessory kit.
Some of the alarm components are used exclusively by the alarm and others are regular car components which are also used by the alarm.

Some of these components, such as sensors, have a monitoring function in the system and others set off the alarm. Central operational control of the system is exercised by an electronic control module.

The anti-theft alarm is programmable so that it can be adapted to meet the requirements and laws of different countries, as well as the preferences of different customers.