The vehicle alarm system responds to:

• Opening of a door, the hood or the trunk lid.
• Movements in the vehicle: interior motion sensor.
• Changes in the vehicle tilt, e.g., during attempts to steal a wheel or when towing the car.
• Interruptions in battery voltage.

The alarm system briefly indicates tampering:

• By sounding an acoustic alarm.
• By switching on the hazard warning system.
• By flashing the high beams.